23.11.00.00 Site Products 1 23.11.11.00 Ground Anchorages 2 23.11.11.11 Retaining Stabilizing Ground Anchors 3 23.11.11.11.11 Retaining Stabilizing Ground Components 4 23.11.11.11.11.11 Stabilizing Ground Anchor Heads 5 23.11.11.11.11.13 Stabilizing Ground Tendons 5 23.11.11.11.13 Stabilizing Ground Grouted Anchors 4 23.11.11.11.15 Stabilizing Ground Plate Anchors 4 23.11.11.11.17 Stabilizing Ground Rock Bolts 4 23.11.11.11.19 Stabilizing Ground Rock Anchors 4 23.11.11.11.21 Stabilizing Ground Anchor Tiebacks 4 23.11.11.13 Earth Reinforcement Anchors 3 23.11.11.13.11 Earth Reinforcement Soil Nails 4 23.11.13.00 Ground Improvement Products 2 23.11.13.11 Soil Stabilization Products 3 23.11.13.11.11 Soil Stabilization Injectable Chemicals 4 23.11.13.11.13 Soil Stabilization Pressure Grouting 4 23.11.13.11.15 Ground Freezing Soil Stabilization 4 23.11.13.11.17 Soil Stabilization Fills 4 23.11.13.11.17.11 Soil Stabilization Fill Blocks 5 23.11.13.11.17.13 Soil Stabilization Compressible Fill 5 23.11.13.11.19 Other Soil Stabilizations 4 23.11.13.11.21 Piped Field Drainage 4 23.11.13.11.21.11 Field Drainage Land Drainage Pipes 5 23.11.13.11.23 Field Drainage Blocks 4 23.11.13.11.25 Field Drainage Geocomposite Drains 4 23.11.13.11.25.11 Field Drainage Geocomposite Edge Drains 5 23.11.13.11.25.13 Field Drainage Geocomposite In Place Wall Drains 5 23.11.13.11.27 Geotextile Subsurface Drainage Filtration 4 23.11.15.00 Sheeting and Revetments 2 23.11.15.11 Sheeting Geosynthetics 3 23.11.15.11.11 Sheeting Geotextiles 4 23.11.15.11.13 Sheeting Geogrids 4 23.11.15.11.15 Sheeting Geomembranes 4 23.11.15.11.17 Sheeting Geocomposites 4 23.11.15.11.19 Sheeting Mulch Control Netting 4 23.11.15.11.21 Sheeting Synthetic Erosion Controls 4 23.11.15.11.23 Sheeting Re vegetation Mats 4 23.11.15.11.25 Sheeting Turf Reinforcement Mats 4 23.11.15.13 Revetments 3 23.11.15.13.11 Revetment Soil Blankets 4 23.11.15.13.13 Pool Revetments 4 23.11.15.13.15 Trench Revetments 4 23.11.15.13.17 Revetment Rock Linings 4 23.11.15.13.19 Revetment Ripraps 4 23.11.17.00 Retention Structures 2 23.11.17.11 Sheet Piles 3 23.11.17.13 Retaining Walls 3 23.11.17.13.11 Retaining Diaphragm Walls 4 23.11.17.13.11.11 Retaining Slurry Wall Membranes 5 23.11.17.13.13 Continuous Retaining Walls 4 23.11.17.13.15 Retaining Crib Walls 4 23.11.17.15 Gabions 3 23.11.17.17 Fascines 3 23.11.19.00 Slide and Avalanche Protection 2 23.11.19.11 Bolt Down Snow Fences 3 23.11.19.13 Clamp on Equipment 3 23.11.21.00 Pavements 2 23.11.21.11 Porous Paving 3 23.11.21.13 Roadways 3 23.11.21.13.11 Portable Roadways 4 23.11.21.13.13 Roadway Surfacing 4 23.11.21.13.13.11 Roadway Antiskid Texturing 5 23.11.21.13.15 Detectable Warning Surfaces for Roadways 4 23.11.21.13.15.11 Crosswalks 5 23.11.21.13.15.13 Warning Tiles 5 23.11.21.15 Runways 3 23.11.21.15.11 Portable Runway 4 23.11.21.15.13 Helicopter Landing Pads 4 23.11.21.15.15 Runway Surfacing 4 23.11.21.15.15.11 Runway Antiskid Texturing 5 23.11.21.17 Paving Blocks 3 23.11.21.17.11 Unit Pavers 4 23.11.21.17.11.11 Asphalt Block Pavers 5 23.11.21.17.11.13 Brick Pavers 5 23.11.21.17.11.15 Interlocking Precast Concrete Pavers 5 23.11.21.17.11.17 Precast Concrete Pavers 5 23.11.21.17.11.19 Pressed Pavers 5 23.11.21.17.11.21 Stone Pavers 5 23.11.21.19 Pavement Slabs 3 23.11.21.21 Pavement Drainage 3 23.11.21.21.11 Culverts 4 23.11.21.21.11.11 Pipe Culverts 5 23.11.21.21.11.11.11 Metal Pipe Arch Culverts 6 23.11.21.21.11.13 Concrete Culverts 5 23.11.21.21.11.13.11 Concrete Arch Buried Bridge Culverts 6 23.11.21.21.11.13.13 Concrete Arch Culverts 6 23.11.21.21.11.13.15 Concrete Box Culverts 6 23.11.21.21.11.13.17 Concrete Rigid Frame Culverts 6 23.11.21.21.13 Catch Basins 4 23.11.21.21.15 Channels 4 23.11.21.21.17 Cleanouts 4 23.11.23.00 Parking Controls 2 23.11.23.11 Parking Meters 3 23.11.23.13 Parking Ticket Dispensers 3 23.11.23.15 Parking Coin Machine Units 3 23.11.23.17 Parking Key and Card Control Units 3 23.11.23.19 Parking Gates 3 23.11.23.21 Parking Dividers 3 23.11.23.23 Parking Signs 3 23.11.23.23.11 Handicap Parking Signs 4 23.11.23.23.13 Parking Time Zone Signs 4 23.11.23.23.15 Parking Tow Away Signs 4 23.11.25.00 Site Barrier Products 2 23.11.25.11 Perimeter Entry Devices 3 23.11.25.11.11 Anti Ram Wedge Barriers 4 23.11.25.13 Perimeter Walls 3 23.11.25.13.11 Precast Perimeter Concrete Panel Perimeter Walls 4 23.11.25.13.13 Precast Perimeter Post Perimeter Walls 4 23.11.25.15 Perimeter Gates 3 23.11.25.15.11 Drop Arm Gates 4 23.11.25.15.11.11 Anti Ram Drop Arm Gates 5 23.11.25.15.13 Rolling Gates 4 23.11.25.15.15 Sliding Gates 4 23.11.25.15.15.11 Anti Ram Sliding Gates 5 23.11.25.15.15.13 Anti Climb Sliding Gates 5 23.11.25.15.17 Swinging Gates 4 23.11.25.15.19 Folding Gates 4 23.11.25.17 Gate Hardware 3 23.11.25.19 Fences 3 23.11.25.19.11 Barbed Wire Fences 4 23.11.25.19.13 Concertina Wire Fences 4 23.11.25.19.15 Composite Fences 4 23.11.25.19.17 Ornamental Metal Fences 4 23.11.25.19.19 Chain Link Metal Fences 4 23.11.25.19.21 Panel Fences 4 23.11.25.19.23 Plastic Fences 4 23.11.25.19.25 Post Fences 4 23.11.25.19.27 Rail Fences 4 23.11.25.19.29 Razor Wire Fences 4 23.11.25.19.31 Wood Fences 4 23.11.25.19.33 Fencing Fabrics 4 23.11.25.19.35 Fencing Accessories 4 23.11.25.19.35.11 Barbed Wire 5 23.11.25.19.35.13 Concertina Wire 5 23.11.25.19.35.15 Fence Posts 5 23.11.27.00 Landscaping 2 23.11.27.11 Plant Maintenance and Preparation Products 3 23.11.27.11.11 Topsoil 4 23.11.27.11.11.11 Loam 5 23.11.27.11.11.13 Peat Soil 5 23.11.27.11.13 Soil Fertilizers 4 23.11.27.11.15 Soil Herbicides 4 23.11.27.11.15.11 Combined Soil Fertilizer and Herbicides 5 23.11.27.11.17 Mulch 4 23.11.27.11.19 Soil Mats 4 23.11.27.11.21 Plant Netting 4 23.11.27.11.23 Landscaping Stakes 4 23.11.27.11.25 Landscaping Blankets 4 23.11.27.11.27 Landscaping Ground Covers 4 23.11.27.11.29 Landscaping Forms 4 23.11.27.11.31 Landscaping Stabilizers 4 23.11.27.11.33 Lime 4 23.11.27.11.35 Mowing Equipment 4 23.11.27.11.35.11 Lawnmowers 5 23.11.27.11.35.13 Garden Tractors 5 23.11.27.11.37 Pruning Equipment 4 23.11.27.11.39 Watering Equipment 4 23.11.27.13 Planting Accessories 3 23.11.27.13.11 Landscaping Edging 4 23.11.27.13.13 Landscape Timbers 4 23.11.27.13.15 Landscape Stone 4 23.11.27.13.15.11 Boulders 5 23.11.27.13.17 Planters 4 23.11.27.13.19 Tree Grates 4 23.11.27.13.21 Tree Grids 4 23.11.27.13.23 Tree Guards 4 23.11.27.13.25 Plant Tubs 4 23.11.27.15 Irrigation Equipment 3 23.11.27.15.11 Irrigation Sprinklers 4 23.11.27.15.11.11 Installed Sprinkler Heads 5 23.11.27.15.11.13 Portable Lawn Sprinklers 5 23.11.27.15.13 Irrigation Hoses 4 23.11.27.15.13.11 Irrigation Weep Hoses 5 23.11.27.17 Lawns and Grasses 3 23.11.27.17.11 Hydro Mulch 4 23.11.27.17.13 Grass Plugs 4 23.11.27.17.15 Grass Seeds and Soil Supplements 4 23.11.27.17.17 Sod 4 23.11.27.19 Plants 3 23.11.27.19.11 Shrubs 4 23.11.27.19.13 Trees 4 23.11.27.19.15 Plants 4 23.11.27.19.17 Plant Bulbs 4 23.11.27.19.19 Floral Plant 4 23.11.27.19.21 Non Flowering Plant 4 23.11.27.21 Pond Equipment 3 23.11.27.21.11 Pond Liners 4 23.11.27.21.13 Pond Filters 4 23.11.29.00 Site Furnishings 2 23.11.29.11 Bicycle Racks and Shelters 3 23.11.29.11.11 Bicycle Racks 4 23.11.29.11.13 Bicycle Shelters 4 23.11.29.11.15 Bicycle Lockers 4 23.11.29.13 Exterior Seating 3 23.11.29.13.11 Exterior Benches 4 23.11.29.13.13 Exterior Chairs 4 23.11.29.15 Exterior Tables 3 23.11.29.17 Patio Furniture 3 23.11.29.17.11 Patio Seating 4 23.11.29.17.11.11 Patio Chairs 5 23.11.29.17.11.13 Patio Benches 5 23.11.29.17.11.15 Patio Chaise Lounges 5 23.11.29.17.11.17 Patio Sofas 5 23.11.29.17.13 Patio Tables 4 23.11.29.17.13.11 Patio Dining Tables 5 23.11.29.17.13.13 Patio Sofa Tables 5 23.11.29.19 Exterior Trash Receptacles 3 23.11.29.19.11 Exterior Wood Trash Receptacles 4 23.11.29.19.13 Exterior Concrete Trash Receptacles 4 23.11.29.19.15 Exterior Metal Trash Receptacles 4 23.11.29.21 Exterior Specialties 3 23.11.29.21.11 Sundials 4 23.11.29.21.13 Garden Ornaments 4 23.11.29.21.15 Bird Houses 4 23.11.29.21.17 Bird Feeders 4 23.11.29.21.19 Bird Baths 4 23.11.29.23 Exterior Storage Structures 3 23.11.29.23.11 Storage Sheds 4 23.11.29.23.13 Barns 4 23.11.29.25 Flagpoles 3 23.11.29.25.11 Automatic Flagpoles 4 23.11.29.25.13 Ground Set Flagpoles 4 23.11.29.25.15 Nautical Flagpoles 4 23.11.29.25.17 Wall Mounted Flagpoles 4 23.11.29.27 Exterior Fountains 3 23.11.29.27.11 Exterior Ornamental Fountains 4 23.11.29.29 Memorials and Statuary 3 23.11.29.31 Monuments 3 23.11.29.33 Exterior Directional Signs 3 23.11.29.33.11 Finger Post Signs 4 23.11.29.33.13 Street Nameplates 4 23.11.29.33.15 Illuminated Directional Signs 4 23.11.29.33.17 Directional Sign Markers 4 23.11.29.35 Bollards 3 23.11.29.35.11 Active Anti Ram Bollards 4 23.11.29.35.13 Passive Anti Ram Bollards 4 23.11.29.35.15 Architectural Bollards 4 23.11.29.37 Public Lighting Columns 3 23.11.31.00 Athletic and Recreational Surfaces 2 23.11.31.11 Sports Field Surfacing 3 23.11.31.13 Playground Surfaces 3 23.13.00.00 Structural and Exterior Enclosure Products 1 23.13.11.00 Loose Granular Fills, Aggregates, Chips, and Fibers 2 23.13.11.11 Powder Fillers 3 23.13.11.11.11 Mineral Powder Fillers 4 23.13.11.11.13 Metal Powder Fillers 4 23.13.11.11.15 Synthetic Powder Fillers 4 23.13.11.11.17 Residue Powder Fillers 4 23.13.11.13 Aggregates 3 23.13.11.13.11 Dense Fills and Aggregates 4 23.13.11.13.13 Lightweight Fills and Aggregates 4 23.13.11.13.15 Heavyweight Fills and Aggregates 4 23.13.11.15 Fibers and Shavings 3 23.13.11.15.11 Mineral Fibers and Shavings 4 23.13.11.15.13 Vegetable Fibers and Shavings 4 23.13.11.15.15 Synthetic Fibers and Shavings 4 23.13.11.15.17 Other Fibers and Shavings 4 23.13.13.00 Binding Agents and Admixtures 2 23.13.13.11 Binding Agents 3 23.13.13.11.11 Cement 4 23.13.13.11.11.11 Standard Cement 5 23.13.13.11.11.13 Specialized Cement 5 23.13.13.11.11.13.11 High Sulfate Resistant Cement 6 23.13.13.11.11.13.13 Low Alkali Cement 6 23.13.13.11.11.13.15 Low Heat Cement 6 23.13.13.11.11.13.17 Alumina Cement 6 23.13.13.11.13 Lime 4 23.13.13.11.13.11 Hydraulic Lime 5 23.13.13.11.13.13 Air Hardening Lime 5 23.13.13.11.15 Bitumen Asphalt 4 23.13.13.11.17 Resinous Binders 4 23.13.13.11.19 Gypsum 4 23.13.13.13 Cement Admixtures 3 23.13.13.13.11 Cement Plasticizing Agents 4 23.13.13.13.13 Cement Water Retaining Agents 4 23.13.13.13.15 Cement Air Entraining Agents 4 23.13.13.13.17 Cement Gas Generating Agents 4 23.13.13.13.19 Cement Setting Retarders 4 23.13.13.13.21 Cement Setting Accelerators 4 23.13.13.13.23 Cement Frostproofing Agents 4 23.13.13.13.25 Cement Waterproofing Agents 4 23.13.13.13.27 Cement Coloring Agents 4 23.13.13.13.29 Cement Admixtures for Injections 4 23.13.13.13.31 Cement Admixtures for Projections 4 23.13.13.13.33 Cement Adherence Proofing Agents 4 23.13.13.13.35 Cement Bonding Agents 4 23.13.13.13.37 Cement Replacements 4 23.13.13.13.39 Other Cement Admixtures 4 23.13.13.15 Gypsum Admixtures 3 23.13.15.00 Mixtures 2 23.13.15.11 Concretes 3 23.13.15.11.11 Cementitious Concretes 4 23.13.15.11.13 Resinous Concretes 4 23.13.15.11.15 Hydrocarbon Concretes 4 23.13.15.11.17 Low Density Concretes 4 23.13.15.13 Mortars 3 23.13.15.13.11 Portland Cement Lime Mortars 4 23.13.15.13.13 Masonry Cement Mortars 4 23.13.15.13.15 Mortar Cements 4 23.13.15.13.17 Gypsum Based Mortars 4 23.13.15.13.19 Resinous Mortar 4 23.13.15.13.21 Chemical Resistant Mortar 4 23.13.15.13.23 Refractory Mortar 4 23.13.15.13.25 Premixed Mortar 4 23.13.15.13.27 Surface Bonding Mortar 4 23.13.15.13.29 Mortar Pigments 4 23.13.15.15 Grouts 3 23.13.15.15.11 Concrete Grouts 4 23.13.15.15.11.11 Shrink Resistant Concrete Grouts 5 23.13.15.15.11.13 Catalyzed Metallic Concrete Grouts 5 23.13.15.15.11.15 Epoxy Concrete Grouts 5 23.13.15.15.11.17 Nonmetallic Concrete Grouts 5 23.13.15.15.13 Masonry Grouts 4 23.13.15.15.13.11 Chemical Resistant Masonry Grouts 5 23.13.17.00 Profiles 2 23.13.17.11 Rigid Profiles 3 23.13.17.11.11 Ferrous Metal Rigid Profiles 4 23.13.17.11.13 Non Ferrous Metal Rigid Profiles 4 23.13.17.11.15 Wood Rigid Profiles 4 23.13.17.11.15.11 Lumber Rigid Profiles 5 23.13.17.11.15.11.11 Hardwood Rigid Profiles 6 23.13.17.11.15.11.13 Softwood Rigid Profiles 6 23.13.17.11.15.11.15 Laminated Rigid Profiles 6 23.13.17.11.15.13 Heavy Timber Rigid Profiles 5 23.13.17.11.17 Plastic Rigid Profiles 4 23.13.17.11.19 Composite Rigid Profiles 4 23.13.17.13 Flexible Profiles 3 23.13.17.13.11 Plastic Flexible Profiles 4 23.13.17.13.13 Rubber Flexible Profiles 4 23.13.17.13.13.11 Natural Rubber Flexible Profiles 5 23.13.17.13.13.13 Butyl Flexible Profiles 5 23.13.17.13.13.15 Neoprene Flexible Profiles 5 23.13.17.13.13.17 Silicone Flexible Profiles 5 23.13.17.13.13.19 Polysulfide Flexible Profiles 5 23.13.17.15 Precast Profiles 3 23.13.17.15.11 Precast Hollow Core Sheets 4 23.13.17.15.13 Precast Tees 4 23.13.17.15.15 Precast Double Tees 4 23.13.17.17 Lath 3 23.13.17.17.11 Gypsum Lath 4 23.13.17.17.13 Lead Lined Lath 4 23.13.17.17.15 Metal Lath 4 23.13.17.17.17 Veneer Plaster Base Lath 4 23.13.17.17.19 Wood Lath 4 23.13.19.00 Sheets, Boards, and Slabs 2 23.13.19.11 Thin Flexible Sheets 3 23.13.19.11.11 Thin Sheets 4 23.13.19.11.11.11 Thin Metal Sheets 5 23.13.19.11.11.13 Thin Wood Sheets 5 23.13.19.11.11.15 Building Papers 5 23.13.19.11.11.17 Thin Plastic Sheets 5 23.13.19.11.11.19 Thin Rubber Sheets 5 23.13.19.11.13 Textiles 4 23.13.19.11.15 Mesh for General Use 4 23.13.19.13 Rigid Sheets, Slabs, Plates 3 23.13.19.13.11 Solid Sheets 4 23.13.19.13.11.11 Solid Stone Sheets 5 23.13.19.13.11.13 Solid Cementitious Sheets 5 23.13.19.13.11.15 Solid Mineral Sheets 5 23.13.19.13.11.17 Solid Glass Sheets 5 23.13.19.13.11.19 Solid Metal Sheets 5 23.13.19.13.11.21 Solid Wood Based Sheets 5 23.13.19.13.11.23 Solid Plastic Sheets 5 23.13.19.13.11.25 Solid Resin Sheets 5 23.13.19.13.11.27 Solid Fiberglass Sheets 5 23.13.19.13.13 Hollow Core Sheets 4 23.13.19.13.13.11 Wood Based Hollow Core Sheets 5 23.13.19.13.13.13 Mineral Hollow Core Sheets 5 23.13.19.13.13.15 Metal Hollow Core Sheets 5 23.13.19.13.13.17 Plastic Hollow Core Sheets 5 23.13.19.15 Gratings 3 23.13.19.17 Blankets, Quilts 3 23.13.21.00 Blocks and Bricks 2 23.13.21.11 Concrete Masonry Units 3 23.13.21.11.11 Concrete Blocks 4 23.13.21.11.13 Exposed Aggregate Concrete Masonry Units 4 23.13.21.11.15 Fluted Concrete Masonry Units 4 23.13.21.11.17 Interlocking Concrete Masonry Units 4 23.13.21.11.19 Molded Face Concrete Masonry Units 4 23.13.21.11.21 Prefaced Concrete Masonry Units 4 23.13.21.11.23 Preinsulated Concrete Masonry Units 4 23.13.21.11.25 Sound Absorbing Concrete Masonry Units 4 23.13.21.11.27 Split Face Concrete Masonry Units 4 23.13.21.13 Calcium Silicate Masonry Units 3 23.13.21.15 Glass Masonry Units 3 23.13.21.17 Adobe Masonry Units 3 23.13.21.19 Clay Masonry Units 3 23.13.21.19.11 Common Bricks 4 23.13.21.19.13 Face Bricks 4 23.13.21.19.15 Fire Bricks 4 23.13.21.19.17 Glazed Bricks 4 23.13.21.19.19 Ceramic Glazed Clay Masonry Units 4 23.13.21.19.21 Clay Tile 4 23.13.21.19.23 Structural Clay Tiles 4 23.13.21.19.25 Clay Flue Linings 4 23.13.21.19.27 Terra Cotta Units 4 23.13.21.21 Masonry Anchorage and Reinforcement 3 23.13.21.21.11 Masonry Reinforcing 4 23.13.21.21.11.11 Continuous Joint Reinforcing 5 23.13.21.21.11.13 Reinforcing Bars 5 23.13.21.21.13 Masonry Ties 4 23.13.21.21.13.11 Flexible Masonry Ties 5 23.13.21.21.13.13 Masonry Veneer Ties 5 23.13.21.21.13.15 Rigid Masonry Ties 5 23.13.21.21.15 Masonry Anchors 4 23.13.21.21.15.11 Masonry Veneer Anchors 5 23.13.21.21.15.13 Stone Masonry Anchors 5 23.13.21.23 Special Profiles for Masonry 3 23.13.21.23.11 Special Masonry Shapes 4 23.13.21.23.13 Masonry Sills and Thresholds 4 23.13.21.23.15 Masonry Moldings 4 23.13.21.23.17 Masonry Copings 4 23.13.21.23.19 Masonry Quoins 4 23.13.21.23.21 Masonry Cornices 4 23.13.21.25 Structural Support for Masonry 3 23.13.21.25.11 Lintels 4 23.13.21.25.11.11 Lintel Former Units 5 23.13.21.25.13 Wall Connectors and Starters 4 23.13.21.25.15 Supports for Masonry 4 23.13.21.25.15.11 Masonry Angles 5 23.13.21.25.15.11.11 Masonry Shelf Angles 6 23.13.21.25.15.13 Gussets 5 23.13.21.27 Ancillary Products for Masonry 3 23.13.21.27.11 Embedded Flashing 4 23.13.21.27.13 Cavity Closers 4 23.13.21.27.15 Cavity Weep and Ventilation Units 4 23.13.21.27.15.11 Cavity Weeps 5 23.13.21.27.15.13 Cavity Vents 5 23.13.21.27.15.15 Cavity Drainage Material 5 23.13.21.27.17 Masonry Joint Materials 4 23.13.21.27.17.11 Masonry Control Joints 5 23.13.21.27.17.13 Masonry Expansion Joints 5 23.13.21.27.19 Airbricks 4 23.13.23.00 Mechanical Fasteners, Adhesives, and Sealants 2 23.13.23.11 Mechanical Fasteners 3 23.13.23.11.11 Cast In Anchorages 4 23.13.23.11.11.11 Rail Anchors 5 23.13.23.11.11.13 Screw Cases 5 23.13.23.11.11.15 Anchor Blocks 5 23.13.23.11.11.17 Cast In Anchorages Inserts 5 23.13.23.11.11.17.11 Cast In Anchorages Inserts Adjustable Wedges 6 23.13.23.11.11.17.13 Cast In Anchorages Inserts Adjustable Boxes 6 23.13.23.11.11.17.15 Threaded Cast In Anchorages Inserts 6 23.13.23.11.11.19 Dovetail Slots 5 23.13.23.11.13 Multi Purpose Mechanical Fasteners 4 23.13.23.11.13.11 Plugs 5 23.13.23.11.13.13 Staples 5 23.13.23.11.13.15 Nails 5 23.13.23.11.13.17 Rivets 5 23.13.23.11.13.19 Screws 5 23.13.23.11.13.21 Bolts and Nuts 5 23.13.23.11.13.23 Threaded Rods and Nuts 5 23.13.23.11.13.25 Bandings 5 23.13.23.11.15 Structural Mechanical Fasteners in Hardened Concrete and Masonry 4 23.13.23.11.15.11 Expansion Anchors 5 23.13.23.11.15.13 Undercut Anchors 5 23.13.23.11.15.15 Bonded Anchors 5 23.13.23.11.17 Mechanical Fasteners for Metal Structures 4 23.13.23.11.19 Mechanical Fasteners for Wood Structures 4 23.13.23.11.19.11 Nail Plates 5 23.13.23.11.19.13 Wood Connectors 5 23.13.23.11.19.15 Framing Anchors 5 23.13.23.11.21 Mechanical Fasteners for Glass Structures 4 23.13.23.13 Welded Joint Products 3 23.13.23.13.11 Soldering Products 4 23.13.23.13.13 Brazing Products 4 23.13.23.13.15 Welding Products 4 23.13.23.15 Adhesives 3 23.13.23.15.11 Natural Adhesives and Glues 4 23.13.23.15.13 Synthetic Adhesives 4 23.13.23.15.15 Sound Proofing Adhesive 4 23.13.23.17 General Purpose Tape 3 23.13.23.19 Joint Fillers, Sealants, and Mastics 3 23.13.23.19.11 Joint Fillers 4 23.13.23.19.11.11 Backer Rods 5 23.13.23.19.13 Putties 4 23.13.23.19.15 Construction Sealants 4 23.13.23.19.15.11 Elastomeric Construction Sealants 5 23.13.23.19.15.13 Rigid Construction Sealants 5 23.13.23.19.15.15 Sanitary Construction Sealants 5 23.13.23.19.15.17 Chemical Resistant Construction Sealants 5 23.13.23.19.15.19 Water Immersed Construction Sealants 5 23.13.23.19.17 Preformed Joint Seals 4 23.13.23.19.17.11 Compression Seals 5 23.13.23.19.17.13 Joint Gaskets 5 23.13.23.21 Ropes, Wires, and Cables 3 23.13.23.21.11 Ropes 4 23.13.23.21.13 Wires 4 23.13.23.21.15 Cables 4 23.13.25.00 Thermal and Moisture Protective Products 2 23.13.25.11 Fireproofing 3 23.13.25.11.11 Board Fireproofing 4 23.13.25.11.11.11 Calcium Silicate Board Fireproofing 5 23.13.25.11.11.13 Slag Fiberboard Fireproofing 5 23.13.25.11.13 Blanket Fireproofing 4 23.13.25.11.13.11 Blanket Fireproofing Smoke Containment Barriers 5 23.13.25.11.15 Fireproofing Coatings 4 23.13.25.11.15.11 Cement Aggregate Fireproofing 5 23.13.25.11.15.13 Cementitious Fireproofing 5 23.13.25.11.15.15 Foamed Magnesium Oxychloride Fireproofing 5 23.13.25.11.15.17 Intumescent Mastic Fireproofing 5 23.13.25.11.15.19 Magnesium Cement Fireproofing 5 23.13.25.11.15.21 Mineral Fiber Cementitious Fireproofing 5 23.13.25.11.15.23 Miner Fiber Fireproofing 5 23.13.25.13 Firestopping 3 23.13.25.13.11 Penetrations Firestopping 4 23.13.25.13.11.11 Annular Space Protection Firestopping 5 23.13.25.13.11.13 Fire Resistant Joint Sealants 5 23.13.25.13.11.15 Firestopping Foams 5 23.13.25.13.11.15.11 Intumescent Firestopping Foams 6 23.13.25.13.11.15.13 Silicone Firestopping Foams 6 23.13.25.13.11.17 Firestopping Mortars 5 23.13.25.13.11.19 Firestopping Pillows 5 23.13.25.13.11.21 Firestopping Thermal Barriers for Plastics 5 23.13.25.13.13 Fire Safing 4 23.13.25.13.13.11 Fire Safing Fibrous Blankets 5 23.13.25.13.13.13 Fire Safing Sealants 5 23.13.25.13.13.15 Fire Safing Clip Anchors 5 23.13.25.15 Dampproofings 3 23.13.25.15.11 Dampproofing Membranes 4 23.13.25.15.13 Dampproofing Coatings 4 23.13.25.15.13.11 Bituminous Dampproofing Coatings 5 23.13.25.15.13.13 Cementitious Dampproofing Coatings 5 23.13.25.17 Waterproofing 3 23.13.25.17.11 Built Up Bituminous Waterproofing 4 23.13.25.17.13 Sheet Waterproofing 4 23.13.25.17.13.11 Bituminous Sheet Waterproofing 5 23.13.25.17.13.13 Elastomeric Sheet Waterproofing 5 23.13.25.17.13.15 Modified Bituminous Sheet Waterproofing 5 23.13.25.17.13.17 Thermoplastic Sheet Waterproofing 5 23.13.25.17.15 Fluid Applied Waterproofing 4 23.13.25.17.15.11 Hot Applied Rubberized Asphalt 5 23.13.25.17.17 Sheet Metal Waterproofing 4 23.13.25.17.19 Cementitious and Reactive Waterproofing 4 23.13.25.17.19.11 Acrylic Modified Cement Waterproofing 5 23.13.25.17.19.13 Crystalline Waterproofing 5 23.13.25.17.19.15 Metal Oxide Waterproofing 5 23.13.25.17.21 Bentonite Waterproofing 4 23.13.25.17.21.11 Bentonite Panel Waterproofing 5 23.13.25.17.21.13 Bentonite Sheet Waterproofing 5 23.13.25.17.23 Waterproof Traffic Coatings 4 23.13.25.17.23.11 Pedestrian Waterproof Traffic Coatings 5 23.13.25.17.23.13 Vehicular Waterproof Traffic Coatings 5 23.13.25.19 Thermal Insulation 3 23.13.25.19.11 Slab and Board Thermal Insulation 4 23.13.25.19.11.11 Polystyrene Slab and Board Thermal Insulation 5 23.13.25.19.11.11.11 Expanded Polystyrene Slab and Board Thermal Insulation 6 23.13.25.19.11.11.13 Extruded Polystyrene Slab and Board Thermal Insulation 6 23.13.25.19.11.13 Urethane Slab and Board Thermal Insulation 5 23.13.25.19.11.15 Perlite Slab and Board Thermal Insulation 5 23.13.25.19.11.17 Fiberglass Slab and Board Thermal Insulation 5 23.13.25.19.13 Blanket Thermal Insulation 4 23.13.25.19.13.11 Fiberglass Blanket Thermal Insulation 5 23.13.25.19.13.13 Rock Wool Blanket Thermal Insulation 5 23.13.25.19.15 Thermal Insulation Coatings 4 23.13.25.19.15.11 Sprayed Thermal Insulation Coatings 5 23.13.25.19.15.11.11 Sprayed Cellulose Thermal Insulation Coatings 6 23.13.25.19.17 Loose Fill Thermal Insulation 4 23.13.25.19.17.11 Granular Fill Thermal Insulation 5 23.13.25.21 Sound Isolation Insulation 3 23.13.25.21.11 Slab and Board Sound Isolation Insulation 4 23.13.25.21.13 Fiberglass Slab and Board Sound Isolation Insulation 4 23.13.25.21.15 Blanket Sound Isolation Insulation 4 23.13.25.21.15.11 Fiberglass Blanket Sound Isolation Insulation 5 23.13.25.21.15.13 Rock Wool Blanket Sound Isolation Insulation 5 23.13.25.21.17 Sound Isolation Coatings 4 23.13.25.21.19 Sound Isolation Loose Fills 4 23.13.25.21.19.11 Granular Sound Isolation Loose Fills 5 23.13.25.23 Damage Prevention Products 3 23.13.25.23.11 Products for Prevention of Biological Damage 4 23.13.25.23.11.11 Coatings for Prevention of Biological Damage 5 23.13.25.23.13 Products for Prevention of Chemical Damage 4 23.13.25.23.13.11 Tiles and Slabs for Prevention of Chemical Damage 5 23.13.25.23.13.13 Sheets for Prevention of Chemical Damage 5 23.13.25.23.13.15 Coatings for Prevention of Chemical Damage 5 23.13.25.23.15 Products for Prevention of Abrasive Wear 4 23.13.25.25 Air Barriers 3 23.13.25.27 Vapor Barriers 3 23.13.27.00 Maintenance Products and Chemicals for Construction 2 23.13.27.11 Cleaning and Maintenance Products 3 23.13.27.11.11 Cleaning Products 4 23.13.27.11.13 Maintenance Products 4 23.13.27.11.15 Combined Cleaning and Protection Products 4 23.13.27.13 Repair Products 3 23.13.27.13.11 Repair Mortars 4 23.13.27.13.13 Concrete Restoration and Cleaning Products 4 23.13.27.13.13.11 Concrete Cleaning Products 5 23.13.27.13.13.13 Concrete Resurfacing Products 5 23.13.27.13.13.15 Concrete Rehabilitation Products 5 23.13.27.13.15 Masonry Restoration and Cleaning Products 4 23.13.27.13.15.11 Unit Masonry Restoration Products 5 23.13.27.13.15.13 Stone Restoration products 5 23.13.27.13.15.15 Unit Masonry Cleaning Products 5 23.13.27.13.15.17 Stone Cleaning products 5 23.13.27.13.17 Metal Restoration and Cleaning Products 4 23.13.27.13.19 Wood and Plastic Restoration and Cleaning Products 4 23.13.27.13.19.11 Wood Restoration and Cleaning Products 5 23.13.27.13.19.13 Plastic Restoration and Cleaning Products 5 23.13.27.15 Chemicals for Construction 3 23.13.27.15.11 Solvents 4 23.13.27.15.13 Acids 4 23.13.27.15.15 Alkalis 4 23.13.27.15.17 Salts 4 23.13.29.00 Foundations 2 23.13.29.11 Foundation Piles 3 23.13.29.11.11 Foundation Pile Components 4 23.13.29.11.11.11 Pile Casings (Linings) 5 23.13.29.11.11.13 Cores and Mandrels 5 23.13.29.11.11.15 Pile Extension Pieces 5 23.13.29.11.11.17 Pile Shoes 5 23.13.29.11.11.19 Pile Splices 5 23.13.29.11.11.21 Pile Caps 5 23.13.29.11.13 Driven Piles 4 23.13.29.11.13.11 Composite Driven Piles 5 23.13.29.11.13.13 Concrete Filled Steel Driven Piles 5 23.13.29.11.13.15 Precast Concrete Driven Piles 5 23.13.29.11.13.17 Rolled Steel Section Driven Piles 5 23.13.29.11.13.19 Unfilled Tubular Steel Driven Piles 5 23.13.29.11.13.21 Wood Driven Piles 5 23.13.29.11.13.23 Sheet Driven Piles 5 23.13.29.11.15 Screw Piles 4 23.13.29.13 Caissons, Foundation Casings 3 23.13.29.13.11 Well Foundation Casings 4 23.13.29.13.13 Caissons 4 23.13.29.15 Shallow Foundations 3 23.13.29.15.11 Column Bases 4 23.13.29.15.13 Grade Beams 4 23.13.29.15.15 Strip Foundation Blocks 4 23.13.29.17 Special Foundations 3 23.13.29.17.11 Controlled Modulus Columns 4 23.13.29.17.13 Other Special Foundations 4 23.13.31.00 Structural Concrete Products 2 23.13.31.11 Structural Concrete 3 23.13.31.13 Ready Mixed Concrete 3 23.13.31.15 Precast Structural Concrete 3 23.13.31.17 Concrete Formwork 3 23.13.31.17.11 Steel Forms 4 23.13.31.17.13 Prefabricated Stair Forms 4 23.13.31.17.15 Concrete Form Liners 4 23.13.31.17.17 Insulated Concrete Forms 4 23.13.31.19 Non Formwork 3 23.13.31.21 Reinforcement and Prestressing Components 3 23.13.31.21.11 Reinforcement Components 4 23.13.31.21.11.11 Reinforcing Steel 5 23.13.31.21.11.13 Reinforcement Steel Mesh 5 23.13.31.21.11.13.11 Welded Wire Fabric Reinforcing 6 23.13.31.21.11.15 Fibrous Reinforcing 5 23.13.31.21.11.15.11 Steel Fibrous Reinforcing 6 23.13.31.21.11.15.13 Synthetic Fibrous Reinforcing 6 23.13.31.21.11.17 Reinforcement Couplers 5 23.13.31.21.11.19 Reinforcement Spacers 5 23.13.31.21.11.21 Reinforcement Accessories 5 23.13.31.21.13 Prestressing Components 4 23.13.31.21.13.11 Stressing Tendons 5 23.13.31.21.13.11.11 Steel Stressing Tendons 6 23.13.31.21.13.11.11.11 Steel Strand Stressing Tendons 7 23.13.31.21.13.11.11.13 Steel Wire Stressing Tendons 7 23.13.31.21.13.11.11.15 Steel Bar Stressing Tendons 7 23.13.31.21.13.11.13 Glass Fibers 6 23.13.31.21.13.13 Steel Bars 5 23.13.31.21.13.15 Glass Fiber Tendons 5 23.13.31.21.13.17 Prestressing Couplers 5 23.13.31.21.13.19 Tendon Sheathing 5 23.13.31.21.13.19.11 Tendon Sheathing Ducts 6 23.13.31.21.13.21 Prestressing Anchorages 5 23.13.31.21.15 Post Tensioning Products 4 23.13.31.21.17 Complete Reinforcement Cages 4 23.13.31.21.19 Cast In Jointing 4 23.13.31.21.19.11 Expansion and Contraction Joints 5 23.13.31.21.19.13 Waterstops 5 23.13.31.23 Concrete Finishing Product 3 23.13.31.23.11 Stamped Concrete Finishing Product 4 23.13.31.23.13 Colored Concrete Finishing Product 4 23.13.33.00 Envelope Enclosure Products 2 23.13.33.11 Sliding Glass Wall Systems 3 23.13.33.13 Folding Glass Wall Systems 3 23.13.33.15 Wall Exteriors 3 23.13.33.15.11 Blast Resistant Wall Exteriors 4 23.13.33.17 Infill Facades 3 23.13.33.17.11 Exterior Wall Assemblies 4 23.13.33.19 Precast Concrete Facade 3 23.13.33.19.11 Cladding and Curtainwall Panels 4 23.13.33.19.11.11 Opening Infill Units 5 23.13.33.19.11.13 Imbedded Material Finish Mix, Tiles, Brick 5 23.13.33.21 Entrances 3 23.13.33.21.11 Aluminum-Framed Entrances 4 23.13.33.21.11.11 Automatic Aluminum-Framed Entrances 5 23.13.33.21.11.13 Revolving Door Aluminum-Framed Entrances 5 23.13.33.21.11.15 Balanced Door Aluminum-Framed Entrances 5 23.13.33.21.11.17 Pressure-Resistant Aluminum-Framed Entrances 5 23.13.33.21.11.19 Intensive Care Unit/Critical Care Unit Aluminum-Framed Entrances 5 23.13.33.21.13 Bronze-Framed Entrances 4 23.13.33.21.13.11 Automatic Bronze-Framed Entrances 5 23.13.33.21.13.13 Revolving Door Bronze-Framed Entrances 5 23.13.33.21.13.15 Balanced Door Bronze-Framed Entrances 5 23.13.33.21.13.17 Pressure-Resistant Bronze-Framed Entrances 5 23.13.33.21.13.19 Intensive Care Unit/Critical Care Unit Bronze-Framed Entrances 5 23.13.33.21.15 Stainless-Steel-Framed Entrances 4 23.13.33.21.15.11 Automatic Stainless-Steel-Framed Entrances 5 23.13.33.21.15.13 Revolving Door Stainless-Steel-Framed Entrances 5 23.13.33.21.15.15 Balanced Door Stainless-Steel-Framed Entrances 5 23.13.33.21.15.17 Pressure-Resistant Stainless-Steel-Framed Entrances 5 23.13.33.21.15.19 Intensive Care Unit/Critical Care Unit Stainless-Steel-Framed Entrances 5 23.13.33.21.17 Steel-Framed Entrances 4 23.13.33.21.17.11 Automatic Steel-Framed Entrances 5 23.13.33.21.17.13 Revolving Door Steel-Framed Entrances 5 23.13.33.21.17.15 Balanced Door Steel-Framed Entrances 5 23.13.33.21.17.17 Pressure-Resistant Steel-Framed Entrances 5 23.13.33.21.17.19 Intensive Care Unit/Critical Care Unit Steel-Framed Entrances 5 23.13.33.21.19 All-Glass Entrances 4 23.13.33.21.19.11 Automatic All-Glass Entrances 5 23.13.33.21.19.13 Revolving Door All-Glass Entrances 5 23.13.33.21.19.15 Balanced Door All-Glass Entrances 5 23.13.33.21.19.17 Pressure-Resistant All-Glass Entrances 5 23.13.33.21.19.19 Intensive Care Unit/Critical Care Unit All-Glass Entrances 5 23.13.33.23 Storefronts 3 23.13.33.23.11 Aluminum-Framed Storefronts 4 23.13.33.23.11.11 Automatic Aluminum-Framed Storefronts 5 23.13.33.23.11.13 Revolving Door Aluminum-Framed Storefronts 5 23.13.33.23.11.15 Balanced Door Aluminum-Framed Storefronts 5 23.13.33.23.11.17 Pressure-Resistant Aluminum-Framed Storefronts 5 23.13.33.23.11.19 Intensive Care Unit/Critical Care Unit Aluminum-Framed Storefronts 5 23.13.33.23.13 Bronze-Framed Storefronts 4 23.13.33.23.13.11 Automatic Bronze-Framed Storefronts 5 23.13.33.23.13.13 Revolving Door Bronze-Framed Storefronts 5 23.13.33.23.13.15 Balanced Door Bronze-Framed Storefronts 5 23.13.33.23.13.17 Pressure-Resistant Bronze-Framed Storefronts 5 23.13.33.23.13.19 Intensive Care Unit/Critical Care Unit Bronze-Framed Storefronts 5 23.13.33.23.15 Stainless-Steel-Framed Storefronts 4 23.13.33.23.15.11 Automatic Stainless-Steel-Framed Storefronts 5 23.13.33.23.15.13 Revolving Door Stainless-Steel-Framed Storefronts 5 23.13.33.23.15.15 Balanced Door Stainless-Steel-Framed Storefronts 5 23.13.33.23.15.17 Pressure-Resistant Stainless-Steel-Framed Storefronts 5 23.13.33.23.15.19 Intensive Care Unit/Critical Care Unit Stainless-Steel-Framed Storefronts 5 23.13.33.23.17 Steel-Framed Storefronts 4 23.13.33.23.17.11 Automatic Steel-Framed Storefronts 5 23.13.33.23.17.13 Revolving Door Steel-Framed Storefronts 5 23.13.33.23.17.15 Balanced Door Steel-Framed Storefronts 5 23.13.33.23.17.17 Pressure-Resistant Steel-Framed Storefronts 5 23.13.33.23.17.19 Intensive Care Unit/Critical Care Unit Steel-Framed Storefronts 5 23.13.33.23.19 All-Glass Storefronts 4 23.13.33.23.19.11 Automatic All-Glass Storefronts 5 23.13.33.23.19.13 Revolving Door All-Glass Storefronts 5 23.13.33.23.19.15 Balanced Door All-Glass Storefronts 5 23.13.33.23.19.17 Pressure-Resistant All-Glass Storefronts 5 23.13.33.23.19.19 Intensive Care Unit/Critical Care Unit All-Glass Storefronts 5 23.13.33.25 Precast Modules 3 23.13.33.27 Glazed Facade and Roof Structures 3 23.13.33.27.11 Curtain Walls 4 23.13.33.27.11.11 Curtain Wall Components 5 23.13.33.27.11.11.11 Curtain Wall Frames 6 23.13.33.27.11.11.13 Curtain Wall Sections 6 23.13.33.27.11.11.15 Curtain Wall Infill Panels 6 23.13.33.27.11.13 Metal Framed Curtain Wall 5 23.13.33.27.11.15 Translucent Curtain Wall Assemblies 5 23.13.33.27.13 Structural Glazing 4 23.13.33.27.13.11 Structural Glass Curtain Walls 5 23.13.33.27.15 Suspended Glazing 4 23.13.33.27.17 Patent Glazing 4 23.13.33.27.19 Glazed Roof Structures 4 23.13.33.27.19.11 Sections for Glazed Roofs 5 23.13.33.27.19.13 Sloped Glazing Assemblies 5 23.13.33.27.19.15 Translucent Roof Assemblies 5 23.13.33.27.19.17 Translucent Wall Assemblies 5 23.13.35.00 Framing Products 2 23.13.35.11 Structural Frames 3 23.13.35.11.11 Beam Column Frames 4 23.13.35.11.13 Column Slab Frames 4 23.13.35.11.13.11 Columns 5 23.13.35.11.13.13 Beams 5 23.13.35.11.15 Portal Frames 4 23.13.35.11.17 Structural Racking 4 23.13.35.11.19 Structural Bearings 4 23.13.35.11.19.11 Structural Roller Bearings 5 23.13.35.11.19.13 Structural Slide Bearings 5 23.13.35.11.19.15 Structural Rocker Bearings 5 23.13.35.11.19.17 Structural Fixed Bearings 5 23.13.35.11.21 Vibration and Earthquake Controls 4 23.13.35.13 Non Structural Framing Products 3 23.13.35.15 Space Frames 3 23.13.35.15.11 Booms Braces 4 23.13.35.15.13 Couplers 4 23.13.35.15.15 Complete Space Frames 4 23.13.35.17 Geodesic Structures 3 23.13.35.19 Rafters, Beams, and Joists 3 23.13.35.19.11 Trussed Rafters 4 23.13.35.19.13 Trussed Beams and Joists 4 23.13.35.19.13.11 Trussed Metal Joists 5 23.13.35.19.13.13 Trussed Composite Joist Assemblies 5 23.13.35.19.13.15 Trussed Metal Web Wood Joists 5 23.13.35.19.13.17 Wood Trusses 5 23.13.35.19.13.19 Metal Trusses 5 23.13.35.19.15 Web Beams and Joists 4 23.13.35.19.15.11 Wood Joists 5 23.13.35.19.15.13 Wood Beams 5 23.13.35.19.15.15 Heavy Timber Construction 5 23.13.35.19.15.17 Engineered Wood Products 5 23.13.35.19.17 Precast Concrete Beams 4 23.13.35.19.17.11 Precast Concrete Doubletee Beams 5 23.13.35.19.17.13 Precast Concrete Hollowcore Beams 5 23.13.35.19.17.15 Precast Concrete Inverted Tee Beams 5 23.13.35.19.17.17 Precast Concrete Spandrel Beams 5 23.13.35.21 Structural Walls 3 23.13.35.21.11 Concrete Structural Walls 4 23.13.35.21.13 Masonry Structural Walls 4 23.13.35.21.15 Wood Framed Structural Walls 4 23.13.35.21.17 Metal Framed Structural Walls 4 23.13.35.21.19 Structural Panels 4 23.13.35.21.19.11 Cementitious Reinforced Structural Panels 5 23.13.35.21.19.13 Stressed Skin Structural Panels 5 23.13.35.21.19.15 Structural Insulated Panels 5 23.13.35.21.21 Other Structural Walls 4 23.13.35.23 Structural Floors and Flat Roofs 3 23.13.35.23.11 Structural Floor Decks 4 23.13.35.23.11.11 Concrete Structural Floor Decks 5 23.13.35.23.11.13 Metal Structural Floor Decks 5 23.13.35.23.11.13.11 Raceway Deck Systems 6 23.13.35.23.11.13.13 Acoustical Metal Floor Decks 6 23.13.35.23.11.15 Wood Structural Floor Decks 5 23.13.35.23.13 Structural Roof Decks 4 23.13.35.23.13.11 Concrete Structural Roof Decks 5 23.13.35.23.13.13 Metal Structural Roof Decks 5 23.13.35.23.13.13.11 Acoustical Metal Roof Deck 6 23.13.35.23.13.15 Wood Structural Roof Decks 5 23.13.35.23.15 Structural Grating Floors 4 23.13.35.23.17 Balconies and Overhang Units 4 23.13.35.23.17.11 Balcony Components 5 23.13.35.23.17.11.11 Balcony Holders and Mechanical Fasteners 6 23.13.35.23.17.13 Concrete Balconies and Overhang Units 5 23.13.35.23.17.15 Metal Balconies and Overhang Units 5 23.13.35.23.17.17 Wood Balconies and Overhang Units 5 23.13.35.25 Structural Profiled Roofs 3 23.13.35.25.11 Prefabricated Shell Roofs 4 23.13.35.25.13 Simulated Stones 4 23.13.37.00 Multi-Function Exterior Coverings, Claddings, Linings 2 23.13.37.11 Multi-Function Exterior Claddings 3 23.13.37.13 Exterior Wall Cladding 3 23.13.37.15 Exterior Siding 3 23.13.37.15.11 Metal Exterior Siding 4 23.13.37.15.13 Composition Exterior Siding 4 23.13.37.15.15 Mineral Fiber Cement Exterior Siding 4 23.13.37.15.17 Plastic Exterior Siding 4 23.13.37.15.19 Wood Exterior Siding 4 23.13.37.17 Multi Function Exterior Linings 3 23.13.37.17.11 Sheathing Products 4 23.13.37.19 Exterior Plasters 3 23.13.37.21 Preformed Exterior Casings 3 23.13.37.23 Ancillary Products for Coverings and Claddings 3 23.13.37.23.11 Supports for Coverings and Claddings 4 23.13.37.23.13 Mechanical Fasteners for Coverings and Claddings 4 23.13.37.23.15 Movement and Dividing Joints for Coverings and Claddings 4 23.13.37.23.17 Joint Coverings, Flashings, Tapes 4 23.13.37.23.19 Reinforcements for Coverings and Claddings 4 23.13.37.23.21 Trims, Edgings, Capping 4 23.13.37.23.23 Spacers 4 23.13.37.23.25 Profile Fillers 4 23.13.37.23.27 Underlays, Linings, Separations 4 23.13.37.23.29 Beddings, Adhesives for Coverings and Claddings 4 23.13.37.23.31 Sealants for Coverings and Claddings 4 23.13.39.00 Roof Coverings, Claddings, Linings 2 23.13.39.11 Exterior Roof Panels 3 23.13.39.11.11 Exterior Metal Roof Panels 4 23.13.39.11.13 Exterior Plastic Roof Panels 4 23.13.39.11.15 Exterior Wood Roof Panels 4 23.13.39.11.17 Exterior Composite Roof Panels 4 23.13.39.11.19 Exterior Faced Roof Panels 4 23.13.39.11.21 Exterior Aggregate Coated Panels 4 23.13.39.11.23 Exterior Porcelain Enameled Faced Panels 4 23.13.39.11.25 Exterior Tile Faced Panels 4 23.13.39.11.27 Exterior Fiber Reinforced Cementitious Panels 4 23.13.39.11.29 Exterior Glass Fiber Reinforced Cementitious Panels 4 23.13.39.11.31 Exterior Miner Fiber Reinforced Cementitious Panels 4 23.13.39.13 Roof Underlayment 3 23.13.39.15 Roof Shingles 3 23.13.39.15.11 Asphalt Roof Shingles 4 23.13.39.15.13 Fiberglass Reinforced Roof Shingles 4 23.13.39.15.15 Metal Roof Shingles 4 23.13.39.15.17 Mineral Fiber Cement Roof Shingles 4 23.13.39.15.19 Plastic Roof Shingles 4 23.13.39.15.21 Porcelain Enamel Roof Shingles 4 23.13.39.15.23 Wood Shingles 4 23.13.39.15.25 Concrete Roof Shingles 4 23.13.39.17 Roof Tiles 3 23.13.39.17.11 Clay Roof Tiles 4 23.13.39.17.13 Concrete Roof Tiles 4 23.13.39.17.15 Metal Roof Tiles 4 23.13.39.17.17 Mineral Fiber Cement Roof Tiles 4 23.13.39.17.19 Plastic Roof Tiles 4 23.13.39.17.21 Ceramic Roof Tiles 4 23.13.39.17.23 Tile Roof Mechanical Fasteners 4 23.13.39.19 Natural Stone Roofing 3 23.13.39.19.11 Roof Slates 4 23.13.39.19.11.11 Slate Roof Mechanical Fasteners 5 23.13.39.21 Shake Roofing 3 23.13.39.21.11 Wood Shakes Roofing 4 23.13.39.23 Flat Roofing 3 23.13.39.23.11 Acoustical Metal Deck Roofing 4 23.13.39.23.13 Structural Deck Roofing 4 23.13.39.23.13.11 Concrete Structural Deck Roofing 5 23.13.39.23.13.13 Metal Structural Deck Roofing 5 23.13.39.23.15 Wood Decking Roofing 4 23.13.39.25 Roof Finish Coating 3 23.13.39.27 Roof Cladding 3 23.13.39.27.11 Roof Cladding Sheets 4 23.13.39.27.11.11 Metal Roof Panels 5 23.13.39.27.11.13 Sheet Metal Roofing 5 23.13.39.27.13 Roof Battens Cladding 4 23.13.39.29 Roof Coverings 3 23.13.39.29.11 Thatched Roofing 4 23.13.39.29.13 Sod Roofing 4 23.13.39.29.15 Vegetated Roof Covering 4 23.13.39.29.15.11 Vegetated Roof Planting Modules 5 23.13.39.29.17 Coated Foam Roof Covering 4 23.13.39.31 Roof Membranes 3 23.13.39.31.11 Single Layer Roof Membranes 4 23.13.39.31.11.11 Chlorinated Polyethylene (CPE) Single Layer Roof Membranes 5 23.13.39.31.11.13 Chlorosulfonated Polyethylene (CSPE) Single Layer Roof Membranes 5 23.13.39.31.11.15 Copolymer Alloy (CPA) Single Layer Roof Membranes 5 23.13.39.31.11.17 Elastomeric Single Layer Roof Membranes 5 23.13.39.31.11.19 Ethylene Interpolymer (EIP) Single Layer Roof Membranes 5 23.13.39.31.11.21 Ethylene Propylene Diene Monomer (EPDM) Single Layer Roof Membranes 5 23.13.39.31.11.23 Nitrile Butadiene Polymer (NBP) Single Layer Roof Membranes 5 23.13.39.31.11.25 Polyisobutylene (PIB) Single Layer Roof Membranes 5 23.13.39.31.11.27 Polyvinyl chloride (PVC) Single Layer Roof Membranes 5 23.13.39.31.11.29 Thermoplastic Alloy (TPA) Single Layer Roof Membranes 5 23.13.39.31.11.31 Thermoplastic Single Layer Roof Membranes 5 23.13.39.31.13 Multi Layer Roof Membranes 4 23.13.39.31.13.11 Asphalt Multi Layer Roof Membranes 5 23.13.39.31.13.13 Built Up Bituminous Multi Layer Roof Membranes 5 23.13.39.31.13.15 Coal Tar Multi Layer Roof Membranes 5 23.13.39.31.13.17 Cold Applied Bituminous Multi Layer Roof Membranes 5 23.13.39.31.13.19 Cold Applied Mastic Multi Layer Roof Membranes 5 23.13.39.31.13.21 Glass Fiber Reinforced Asphalt Emulsion Multi Layer Roof Membranes 5 23.13.39.31.13.23 Modified Bituminous Multi Layer Roof Membranes 5 23.13.39.31.15 Fluid Applied Roofing 4 23.13.39.31.17 Coated Foam Roofing 4 23.13.39.31.19 Roll Roofing 4 23.13.39.33 Roof Decking 3 23.13.39.33.11 Cementitious Deck Roofing 4 23.13.39.33.11.11 Cementitious Composite Insulation Deck Roofing 5 23.13.39.33.11.13 Cementitious Lightweight Cellular Deck Roofing 5 23.13.39.33.11.15 Cementitious Lightweight Insulating Deck Roofing 5 23.13.39.33.13 Lightweight Concrete Roofing Insulation 4 23.13.39.33.13.11 Composite Concrete and Insulation Deck Roofing 5 23.13.39.33.13.13 Lightweight Cellular Concrete Deck Roofing 5 23.13.39.33.13.15 Lightweight Insulating Concrete Deck Roofing 5 23.13.39.33.15 Concrete Deck Roofing 4 23.13.39.33.15.11 Concrete Composite Insulation Deck Roofing 5 23.13.39.33.15.13 Concrete Lightweight Cellular Deck Roofing 5 23.13.39.33.15.15 Concrete Lightweight Insulating Deck Roofing 5 23.13.39.33.17 Concrete Roof Topping 4 23.13.39.35 Roof Finishing Coatings 3 23.13.39.37 Renovation Products for Roof Coverings and Claddings 3 23.13.41.00 Roof Specialties and Accessories 2 23.13.41.11 Roof Edgings and Trims 3 23.13.41.11.11 Roof Copings 4 23.13.41.11.13 Roof Counterflashing Systems 4 23.13.41.11.15 Roof Gravel Stops 4 23.13.41.11.17 Roof Fascias 4 23.13.41.11.19 Roof Reglets 4 23.13.41.11.21 Roof Scuppers 4 23.13.41.13 Roof Flashings 3 23.13.41.13.11 Laminated Sheet Flexible Roof Flashings 4 23.13.41.13.13 Modified Bituminous Sheet Flexible Roof Flashings 4 23.13.41.13.15 Plastic Sheet Flexible Roof Flashings 4 23.13.41.13.17 Rubber Sheet Flexible Roof Flashings 4 23.13.41.13.19 Self Adhering Sheet Flexible Roof Flashings 4 23.13.41.13.21 Roof Vent Flashings 4 23.13.41.13.23 Roof Flashing Drip Caps 4 23.13.41.13.25 Roof Penetration Flashings 4 23.13.41.15 Roof Expansion Joints 3 23.13.41.17 Roof Vents 3 23.13.41.17.11 Roof Relief Vents 4 23.13.41.17.13 Roof Ridge Vents 4 23.13.41.17.15 Roof Smoke Vents 4 23.13.41.17.17 Gravity Roof Vents 4 23.13.41.17.19 Automatic Roof Vents 4 23.13.41.17.21 Fire Vents 4 23.13.41.19 Roof Walkways 3 23.13.41.19.11 Roof Pavers 4 23.13.41.19.11.11 Precast Concrete Roof Pavers 5 23.13.41.19.11.13 Pedestals Roof Pavers 5 23.13.41.19.13 Roof Treads 4 23.13.41.19.13.11 Rubber Roof Treads 5 23.13.41.21 Roof Snow Guards 3 23.13.41.23 Roof Piping Portals 3 23.13.41.25 Roof Domes 3 23.13.41.27 Roof Turrets 3 23.13.41.29 Roof Lanterns 3 23.13.41.31 Roof Curb 3 23.13.41.31.11 Structural Roof Curb 4 23.13.41.31.13 Acoustical Roof Curb 4 23.13.41.31.15 Manufactured Roof Curbs 4 23.13.41.33 Roof Gutters 3 23.13.41.35 Roof Soffits 3 23.13.41.37 Roof Splash Blocks 3 23.13.41.39 Roof Drains 3 23.13.41.39.11 Roof Downspouts 4 23.13.41.39.13 Roof Drains With Strainer 4 23.13.41.39.15 Roof Drains Without Strainer 4 23.13.41.39.17 Eavestroughs 4 23.13.41.39.17.11 Mechanical Fasteners for Downspouts 5 23.13.41.39.17.13 Downspout Strainers 5 23.13.41.39.19 Siphonic Roof Drains 4 23.15.00.00 Interior and Finish Products 1 23.15.11.00 Space Division Products 2 23.15.11.11 Fixed Partitions 3 23.15.11.11.11 Gypsum Board Fixed Partitions 4 23.15.11.11.11.11 Metal Framed Gypsum Board Fixed Partitions 5 23.15.11.11.11.13 Wood Framed Gypsum Board Fixed Partitions 5 23.15.11.11.13 Plaster Fixed Partitions 4 23.15.11.11.13.11 Gypsum Plaster Fixed Partitions 5 23.15.11.11.13.13 Portland Cement Plaster Fixed Partitions 5 23.15.11.11.13.15 Metal Framed Plaster Fixed Partitions 5 23.15.11.11.13.17 Wood Framed Plaster Fixed Partitions 5 23.15.11.11.15 Masonry Fixed Partitions 4 23.15.11.13 Demountable Partitions 3 23.15.11.13.11 General Demountable Partitions 4 23.15.11.13.11.11 Demountable Partitions Component 5 23.15.11.13.11.11.11 Partition Frames 6 23.15.11.13.11.11.13 Partition Infill Panels 6 23.15.11.13.11.11.15 Mechanical Fasteners for Partitions 6 23.15.11.13.11.11.17 Joint Fillers and Tapes 6 23.15.11.13.11.13 Gypsum Board Demountable Partitions 5 23.15.11.13.11.15 Metal Demountable Partitions 5 23.15.11.13.11.17 Wood Demountable Partitions 5 23.15.11.15 Sanitary Partitions and Cubicles 3 23.15.11.15.11 Toilet Compartments and Urinal Screens 4 23.15.11.15.11.11 Metal Toilet Compartments and Urinal Screens 5 23.15.11.15.11.13 Plastic Laminate Toilet Compartments and Urinal Screens 5 23.15.11.15.11.15 Plastic Toilet Compartments and Urinal Screens 5 23.15.11.15.11.17 Particleboard Toilet Compartments and Urinal Screens 5 23.15.11.15.11.19 Stone Toilet Compartments and Urinal Screens 5 23.15.11.15.13 Shower and Dressing Compartments 4 23.15.11.15.13.11 Metal Shower and Dressing Compartments 5 23.15.11.15.13.13 Plastic Laminate Shower and Dressing Compartments 5 23.15.11.15.13.15 Plastic Shower and Dressing Compartments 5 23.15.11.15.13.17 Particleboard Shower and Dressing Compartments 5 23.15.11.15.13.19 Stone Shower and Dressing Compartments 5 23.15.11.15.15 Cubicles 4 23.15.11.15.15.11 Cubicle Curtains 5 23.15.11.15.15.13 Cubicle Track and Hardware 5 23.15.11.15.17 Storage Wall Partitions and Compartments 4 23.15.11.15.17.11 Wire Mesh Partitions 5 23.15.11.15.19 Modular Corridor Linings 4 23.15.11.15.21 Combined Partitions and Ceilings 4 23.15.11.17 Operable Partitions 3 23.15.11.17.11 Horizontally Sliding Partitions 4 23.15.11.17.13 Folding Panel Partitions 4 23.15.11.17.15 Accordion Folding Partitions 4 23.15.11.17.17 Coiling Partitions 4 23.15.11.17.19 Vertically Sliding Room Dividers 4 23.15.13.00 Multi-Function Interior Coverings, Claddings, Linings 2 23.15.13.11 Multi Function Interior Claddings 3 23.15.13.13 Interior Wall and Ceiling Cladding 3 23.15.13.15 Interior Siding 3 23.15.13.15.11 Metal Interior Siding 4 23.15.13.15.13 Composition Interior Siding 4 23.15.13.15.15 Mineral Fiber Cement Interior Siding 4 23.15.13.15.17 Plastic Interior Siding 4 23.15.13.15.19 Wood Interior Siding 4 23.15.13.17 Multi Function Interior Linings 3 23.15.13.19 Wall Panels 3 23.15.13.19.11 Metal Wall Panels 4 23.15.13.19.13 Plastic Wall Panels 4 23.15.13.19.15 Wood Wall Panels 4 23.15.13.19.17 Composite Wall Panels 4 23.15.13.19.19 Faced Wall Panels 4 23.15.13.19.21 Aggregate Coated Wall Panels 4 23.15.13.19.23 Porcelain Enameled Faced Wall Panels 4 23.15.13.19.25 Tile Faced Wall Panels 4 23.15.13.19.27 Fiber Reinforced Cementitious Wall Panels 4 23.15.13.19.29 Glass Fiber Reinforced Cementitious Wall Panels 4 23.15.13.19.31 Miner Fiber Reinforced Cementitious Wall Panels 4 23.15.13.19.33 Flexible Wood Wall Sheets 4 23.15.13.19.35 Acoustical Wall Treatment 4 23.15.13.21 Ceiling Panels 3 23.15.13.21.11 Metal Ceiling Panels 4 23.15.13.21.13 Plastic Ceiling Panels 4 23.15.13.21.15 Wood Ceiling Panels 4 23.15.13.21.17 Composite Ceiling Panels 4 23.15.13.21.19 Faced Ceiling Panels 4 23.15.13.21.21 Aggregate Coated Ceiling Panels 4 23.15.13.21.23 Porcelain Enameled Faced Ceiling Panels 4 23.15.13.21.25 Tile Faced Ceiling Panels 4 23.15.13.21.27 Fiber Reinforced Cementitious Ceiling Panels 4 23.15.13.21.29 Glass Fiber Reinforced Cementitious Ceiling Panels 4 23.15.13.21.31 Miner Fiber Reinforced Cementitious Ceiling Panels 4 23.15.13.21.33 Flexible Wood Ceiling Sheets 4 23.15.13.21.35 Acoustical Ceiling Treatment 4 23.15.13.23 Interior Plasters 3 23.15.13.25 Preformed Interior Casings 3 23.15.15.00 Wall Coverings, Claddings, Linings 2 23.15.15.11 Wall Cladding Sections 3 23.15.15.11.11 Metal Wall Cladding Sections 4 23.15.15.11.13 Wood Wall Cladding Sections 4 23.15.15.11.15 Plastics Wall Cladding Sections 4 23.15.15.11.17 Other Wall Cladding Sections 4 23.15.15.13 Wall Tiles 3 23.15.15.13.11 Natural Stone Wall Tiles 4 23.15.15.13.13 Reconstituted Stone Wall Tiles 4 23.15.15.13.15 Cementitious Wall Tiles 4 23.15.15.13.17 Clay Based Wall Tiles 4 23.15.15.13.19 Metal Wall Tiles 4 23.15.15.13.21 Vegetable Based Wall Tiles 4 23.15.15.13.23 Plastics Wall Tiles 4 23.15.15.13.25 Other Wall Tiles 4 23.15.15.15 Wall Cladding Panels 3 23.15.15.15.11 Wall Stone Facing 4 23.15.15.15.13 Cementitious Wall Cladding Panels 4 23.15.15.15.13.11 Precast Concrete Wall Cladding Panels 5 23.15.15.15.15 Metal Wall Cladding Panels 4 23.15.15.15.17 Wood Based Wall Cladding Panels 4 23.15.15.15.19 Plastic Wall Cladding Panels 4 23.15.15.15.19.11 Plastic Wall Cladding Blocks 5 23.15.15.15.21 Other Wall Cladding Panels 4 23.15.15.17 Wall Cladding Sheets 3 23.15.15.17.11 Fiber Based Wall Cladding Sheets 4 23.15.15.17.13 Metal Wall Cladding Sheets 4 23.15.15.17.15 Plastic Wall Cladding Sheets 4 23.15.15.17.17 Fiberglass Reinforced Panels 4 23.15.15.19 Wall Coverings 3 23.15.15.19.11 Wallpaper 4 23.15.15.19.13 Wall Fabrics 4 23.15.15.19.15 Plastic Wall Coverings 4 23.15.15.19.17 Cork Wall Covering 4 23.15.15.19.19 Vinyl Coated Fabric Wall Covering 4 23.15.15.19.21 Vinyl Wall Covering 4 23.15.15.19.23 Wall Carpet 4 23.15.15.19.25 Wall Veneers 4 23.15.15.21 Wall Blocks 3 23.15.15.23 Wall Linings 3 23.15.15.25 Wall Finish Coatings 3 23.15.15.27 Renders 3 23.15.15.29 Acoustical Wall Finishes 3 23.15.15.31 Wall Specialties and Trim 3 23.15.15.31.11 Wall Pilasters 4 23.15.15.31.13 Wall Niches 4 23.15.15.31.15 Wall Moldings 4 23.15.15.31.17 Renovating Wall Coverings 4 23.15.15.31.19 Renovating Wall Claddings 4 23.15.15.33 Wall Finish Restoration Products 3 23.15.15.35 Security Wall Protection Products 3 23.15.15.35.11 Blast Resistant Wall Exteriors 4 23.15.15.35.13 Blast Resistant Wall Interiors 4 23.15.17.00 Floor Coverings 2 23.15.17.11 Flooring Specialties and Accessories 3 23.15.17.11.11 Floor Toppings 4 23.15.17.11.11.11 Concrete Floor Toppings 5 23.15.17.11.13 Floor Underlayments 4 23.15.17.11.13.11 Cementitious Floor Underlayments 5 23.15.17.11.13.11.11 Gypsum Floor Underlayments 6 23.15.17.11.13.11.13 Portland Cement Floor Underlayments 6 23.15.17.11.13.13 Acoustical Underlayments 5 23.15.17.11.13.15 Crack Prevention Mat Underlayments 5 23.15.17.11.15 Floor Treatment Products 4 23.15.17.11.15.11 Floor Sealers 5 23.15.17.11.15.13 Floor Hardeners 5 23.15.17.11.15.15 Slip Resistant Floor Treatment 5 23.15.17.11.15.17 Static Resistant Floor Treatment 5 23.15.17.11.15.19 Acid Resistant Floor Treatment 5 23.15.17.11.17 Floor Base and Accessories 4 23.15.17.11.17.11 Base and Accessories for Floor Coverings 5 23.15.17.11.17.13 Acoustic Floor Mountings 5 23.15.17.11.19 Floor Mats and Grilles 4 23.15.17.11.19.11 Floor Mats 5 23.15.17.11.19.13 Floor Grilles 5 23.15.17.11.19.15 Floor Gratings 5 23.15.17.11.21 Flooring Restoration Products 4 23.15.17.11.21.11 Bamboo 5 23.15.17.13 Floor Covering Strips, Tiles, Blocks, and Slabs 3 23.15.17.13.11 Wood Flooring 4 23.15.17.13.11.11 Cushioned Wood Flooring Assemblies 5 23.15.17.13.11.13 Mastic Set Wood Flooring Assemblies 5 23.15.17.13.11.15 Resilient Wood Flooring Assemblies 5 23.15.17.13.11.17 Wood Athletic Flooring 5 23.15.17.13.11.19 Wood Block Flooring 5 23.15.17.13.11.21 Wood Composition Flooring 5 23.15.17.13.11.23 Wood Parquet Flooring 5 23.15.17.13.11.25 Wood Strip Flooring 5 23.15.17.13.13 Tile Flooring 4 23.15.17.13.13.11 Clay Based Flooring 5 23.15.17.13.13.13 Ceramic Tile Flooring 5 23.15.17.13.13.13.11 Ceramic Mosaic Tile Flooring 6 23.15.17.13.13.13.13 Conductive Tile Flooring 6 23.15.17.13.13.15 Quarry Tile Flooring 5 23.15.17.13.13.17 Chemical Resistant Quarry Tile Flooring 5 23.15.17.13.13.17.11 Porcelain Tile Flooring 6 23.15.17.13.13.17.13 Glass Mosaic Tile Flooring 6 23.15.17.13.13.17.15 Plastic Tile Flooring 6 23.15.17.13.13.17.17 Metal Tile Flooring 6 23.15.17.13.13.17.19 Natural Cut Stone Tile Flooring 6 23.15.17.13.13.17.21 Tile Flooring Restoration Products 6 23.15.17.13.15 Terrazzo Flooring 4 23.15.17.13.15.11 Portland Cement Terrazzo Flooring 5 23.15.17.13.15.13 Precast Terrazzo Flooring 5 23.15.17.13.15.15 Conductive Terrazzo Flooring 5 23.15.17.13.15.17 Plastic matrix Terrazzo Flooring 5 23.15.17.13.15.19 Terrazzo Flooring Restoration Products 5 23.15.17.13.17 Masonry Flooring 4 23.15.17.13.17.11 Brick Flooring 5 23.15.17.13.17.11.11 Chemical Resistant Brick Flooring 6 23.15.17.13.17.13 Stone Flooring 5 23.15.17.13.17.15 Other Masonry Flooring 5 23.15.17.13.19 Precast Tile and Slab Flooring 4 23.15.17.13.21 Metal Flooring 4 23.15.17.15 Resilient Flooring 3 23.15.17.15.11 Cork Flooring 4 23.15.17.15.13 Plastic Flooring 4 23.15.17.15.15 Rubber Flooring 4 23.15.17.15.17 Linoleum Flooring 4 23.15.17.15.19 Mechanical Fasteners for Resilient Floor Coverings 4 23.15.17.15.19.11 Floor Clips 5 23.15.17.15.19.13 Carpet Grippers 5 23.15.17.15.19.15 Stair Rods 5 23.15.17.15.21 Other Resilient Flooring 4 23.15.17.17 Carpet Flooring 3 23.15.17.17.11 Carpet Cushions 4 23.15.17.17.13 Carpet Tiles 4 23.15.17.17.15 Indoor Carpet Flooring 4 23.15.17.17.17 Outdoor Carpet Flooring 4 23.15.17.17.19 Sheet Carpet Flooring 4 23.15.17.19 Preformed Flooring Equipment Systems 3 23.15.17.19.11 Floating Floors 4 23.15.17.19.13 Portable Floors 4 23.15.17.19.15 Convertible Floors 4 23.15.17.19.17 Gymnasium or Dance Flooring 4 23.15.17.21 Access Flooring Components 3 23.15.17.21.11 Access Floor Frames 4 23.15.17.21.13 Access Floor Infill Panels 4 23.15.17.23 Rigid Grid Access Flooring 3 23.15.17.25 Snap On Stringer Access Flooring 3 23.15.17.27 Stringerless Access Flooring 3 23.15.17.29 Floor Finishing Coatings 3 23.15.17.29.11 Industrial Floor Coatings 4 23.15.17.29.13 Fluid Applied Flooring 4 23.15.17.29.13.11 Elastomeric Liquid Flooring 5 23.15.17.29.13.13 Epoxy Marble Chip Flooring 5 23.15.17.29.13.15 Magnesium Oxychoride Flooring 5 23.15.17.29.13.17 Mastic Fills Flooring 5 23.15.17.29.13.19 Resinous Flooring 5 23.15.17.29.13.21 Seamless Quartz Flooring 5 23.15.19.00 Ceiling Coverings, Claddings, and Linings 2 23.15.19.11 Ceiling Baffles 3 23.15.19.13 Ceiling Clouds 3 23.15.19.15 Ceiling Tiles, Panels, Strips, and Sections 3 23.15.19.15.11 Ceiling Tiles 4 23.15.19.15.11.11 Acoustical Ceiling Tile 5 23.15.19.15.13 Ceiling Panels 4 23.15.19.15.13.11 Acoustical Ceiling Panels 5 23.15.19.15.13.13 Mirror Ceiling Panels 5 23.15.19.15.13.15 Curved Ceiling Panels 5 23.15.19.15.13.17 Metal Ceiling Panels 5 23.15.19.15.15 Ceiling Covering Strips 4 23.15.19.15.15.11 Linear Metal Ceiling Covering Strips 5 23.15.19.15.15.13 Linear Wood Ceiling Covering Strips 5 23.15.19.15.17 Ceiling Covering Sections 4 23.15.19.15.17.11 Suspended Decorative Ceiling Grids 5 23.15.19.17 Ceiling Finishing Coatings 3 23.15.19.17.11 Textured Ceilings 4 23.15.19.17.11.11 Gypsum Panel Textured Ceilings 5 23.15.19.17.11.13 Metal Panel Textured Ceilings 5 23.15.19.19 Ceiling Specialties and Accessories 3 23.15.19.19.11 Roses Ceiling Centerpieces 4 23.15.19.19.13 Ceiling Coving 4 23.15.19.19.15 Ceiling Cornices 4 23.15.19.19.17 Ceiling Friezes 4 23.15.19.19.19 Integral Speaking Panels 4 23.15.19.21 Ceiling Assembly Restoration Products 3 23.15.19.23 Ceilings 3 23.15.19.23.11 Suspended Ceilings 4 23.15.19.23.11.11 Suspended Ceiling Components 5 23.15.19.23.11.11.11 Suspended Ceilings, Suspension Assembly 6 23.15.19.23.11.11.13 Suspended Ceilings, Panels and Tiles 6 23.15.19.23.11.11.15 Suspended Ceilings, Grids 6 23.15.19.23.11.11.17 Mechanical Fasteners for Suspended Ceilings 6 23.15.19.23.11.13 Acoustical Ceilings 5 23.15.19.23.11.13.11 Metal Pan Acoustical Ceilings 6 23.15.19.23.11.13.13 Acoustical Panel Ceilings 6 23.15.19.23.11.13.15 Acoustical Tile Ceilings 6 23.15.19.23.11.15 Specialty Ceilings 5 23.15.19.23.11.15.11 Integrated Ceilings 6 23.15.19.23.11.15.13 Linear Ceilings 6 23.15.19.23.11.15.13.11 Metal Linear Ceilings 7 23.15.19.23.11.15.13.13 Wood Linear Ceilings 7 23.15.19.23.11.15.15 Luminous Ceilings 6 23.15.19.23.11.15.17 Mirror Panel Ceilings 6 23.15.19.23.11.15.19 Textured Ceilings 6 23.15.19.23.11.15.21 Suspended Decorative Grids 6 23.15.19.23.11.15.23 Clean Room Ceilings 6 23.15.19.23.13 Stretched Fabric Ceilings 4 23.15.21.00 Surface Applied Coatings 2 23.15.21.11 Paints and Varnishes 3 23.15.21.11.11 General Purpose Paints and Varnishes 4 23.15.21.11.11.11 Solvent Based General Purpose Paints and Varnishes 5 23.15.21.11.11.13 Water Based General Purpose Paints and Varnishes 5 23.15.21.11.13 Textured Paints 4 23.15.21.11.13.11 Solvent Based Textured Paints 5 23.15.21.11.13.13 Water Based Textured Paints 5 23.15.21.13 Paints for Particular Applications 3 23.15.21.13.11 Corrosion Prevention Paints 4 23.15.21.13.13 Solar Reflective Paints 4 23.15.21.13.15 Fluorescent Paints 4 23.15.21.13.17 Line Paints 4 23.15.21.13.19 Roadway Marking Paints 4 23.15.21.13.21 Swimming Pool Paints 4 23.15.21.13.23 Coatings for Concrete and Masonry 4 23.15.21.13.25 Mold/Mildew Resistant Coatings 4 23.15.21.15 Powder Coating Services 3 23.15.21.15.11 Factory Applied Metal Powder Coatings 4 23.15.21.17 Inorganic Metal Treatments 3 23.15.21.17.11 Galvanized Coatings 4 23.15.21.17.13 Anodized Coatings 4 23.15.21.17.15 Electro Plated Coatings 4 23.15.21.17.17 Vitreous Enameling 4 23.15.21.19 Stains and Decorative Surface Impregnations 3 23.15.21.19.11 Decorative Wood Conservation Products 4 23.15.21.19.13 Stains 4 23.15.21.19.13.11 Opaque Stains 5 23.15.21.19.13.11.11 Exterior Opaque Stains 6 23.15.21.19.13.11.13 Interior Opaque Stains 6 23.15.21.19.13.13 Transparent Stains 5 23.15.21.19.13.13.11 Exterior Transparent Stains 6 23.15.21.19.13.13.13 Interior Transparent Stains 6 23.15.21.21 High Performance Coatings 3 23.15.21.21.11 Abrasion Resistant Coatings 4 23.15.21.21.13 Chemical Resistant Coatings 4 23.15.21.21.15 Elastomeric Coatings 4 23.15.21.21.17 Fire Resistant Coatings 4 23.15.21.21.19 Graffiti Resistant Coatings 4 23.15.21.21.21 High Building Coatings 4 23.15.21.21.23 Intumescent Paints 4 23.15.21.21.25 Marine Coatings 4 23.15.21.21.27 Textured Plastic Coatings 4 23.15.21.23 Protective Surface Impregnations 3 23.15.21.23.11 Surface Consolidation Hardening Impregnations 4 23.15.21.23.13 Impregnations Protecting from Biological Attack 4 23.15.21.23.13.11 Wood Treatment Protecting from Biological Attack 5 23.15.21.23.15 Impregnations Protecting from Fire 4 23.15.21.23.15.11 Wood Treatment Protecting from Fire 5 23.15.21.23.15.11.11 Fire Retardant Treatment 6 23.15.21.23.17 Water Repellents 4 23.15.21.23.17.11 Acrylic Water Repellents 5 23.15.21.23.17.13 Silane Water Repellents 5 23.15.21.23.17.15 Silicone Water Repellents 5 23.15.21.23.17.17 Siloxane Water Repellents 5 23.15.21.23.17.19 Stearate Water Repellents 5 23.17.00.00 Openings, Passages, and Protection Products 1 23.17.11.00 Doors 2 23.17.11.11 Door Components 3 23.17.11.11.11 Door Frames 4 23.17.11.11.13 Preassembled Door and Frame Units 4 23.17.11.11.15 Door Fanlights 4 23.17.11.11.17 Door Sections 4 23.17.11.11.17.11 Structural Door Sections 5 23.17.11.11.17.13 Door Cladding Sections 5 23.17.11.11.19 Door Linings and Boards 4 23.17.11.11.21 Door Renovation Sets 4 23.17.11.11.23 Door Sidelites 4 23.17.11.11.25 Door Accessories 4 23.17.11.11.25.11 Door Peep Holes 5 23.17.11.11.25.13 Door Buffers 5 23.17.11.11.25.15 Door Stops 5 23.17.11.11.25.17 Door Mail Openings 5 23.17.11.11.25.19 Door Mail Slots 5 23.17.11.11.25.21 Door Louvers 5 23.17.11.11.25.23 Door Lights 5 23.17.11.13 Metal Doors 3 23.17.11.13.11 Hollow Metal Doors 4 23.17.11.13.13 Aluminum Doors 4 23.17.11.13.13.11 Aluminum Screen Doors 5 23.17.11.13.13.13 Aluminum Storm Doors 5 23.17.11.13.15 Steel Doors 4 23.17.11.13.15.11 Steel Screen Doors 5 23.17.11.13.15.13 Steel Storm Doors 5 23.17.11.13.17 Bronze Doors 4 23.17.11.13.19 Sliding Metal Doors 4 23.17.11.13.21 Folding Metal Doors 4 23.17.11.13.23 Revolving Metal Doors 4 23.17.11.13.25 Overhead Metal Doors 4 23.17.11.13.25.11 Roller Shutter Overhead Metal Doors 5 23.17.11.13.25.13 Sectional Overhead Metal Doors 5 23.17.11.15 Wood Doors 3 23.17.11.15.11 Carved Wood Doors 4 23.17.11.15.13 Flush Wood Doors 4 23.17.11.15.15 Clad Wood Doors 4 23.17.11.15.17 Prefinished Wood Doors 4 23.17.11.15.19 Stile and Rail Wood Doors 4 23.17.11.15.21 Wood Storm Doors 4 23.17.11.15.23 Wood Screen Doors 4 23.17.11.15.25 Sliding Wood Doors 4 23.17.11.15.27 Folding Wood Doors 4 23.17.11.15.29 Revolving Wood Doors 4 23.17.11.15.31 Overhead Wood Doors 4 23.17.11.15.31.11 Roller Shutter Overhead Wood Doors 5 23.17.11.15.31.13 Sectional Overhead Wood Doors 5 23.17.11.17 Plastic Doors 3 23.17.11.17.11 Laminated Plastic Doors 4 23.17.11.17.13 Solid Plastic Doors 4 23.17.11.17.15 Plastic Storm Doors 4 23.17.11.17.17 Plastic Screen Doors 4 23.17.11.17.19 Sliding Plastic Doors 4 23.17.11.17.21 Folding Plastic Doors 4 23.17.11.17.23 Revolving Plastic Doors 4 23.17.11.17.25 Overhead Plastic Doors 4 23.17.11.17.25.11 Roller Shutter Overhead Plastic Doors 5 23.17.11.17.25.13 Sectional Overhead Plastic Doors 5 23.17.11.19 Composite Doors 3 23.17.11.19.11 Fiberglass Composite Doors 4 23.17.11.19.13 Sliding Composite Doors 4 23.17.11.19.15 Folding Composite Doors 4 23.17.11.19.17 Composite Hinged Doors 4 23.17.11.19.19 Revolving Composite Doors 4 23.17.11.19.21 Overhead Composite Doors 4 23.17.11.19.21.11 Roller Shutter Overhead Composite Doors 5 23.17.11.19.21.13 Sectional Overhead Composite Doors 5 23.17.11.21 Glazed Doors 3 23.17.11.21.11 Glazed Hinged Doors 4 23.17.11.23 All Glass Doors 3 23.17.11.23.11 Swinging All Glass Doors 4 23.17.11.23.13 Sliding All Glass Doors 4 23.17.11.23.15 Folding All Glass Doors and Grilles 4 23.17.11.23.15.11 Accordion Folding All Glass Doors 5 23.17.11.23.15.13 Panel Folding All Glass Doors 5 23.17.11.23.15.15 Bifold All Glass Doors 5 23.17.11.23.17 Revolving All Glass Doors 4 23.17.11.23.19 Balanced All Glass Doors 4 23.17.11.25 Passage Grilles 3 23.17.11.25.11 Sliding Passage Grilles 4 23.17.11.25.13 Folding Passage Grilles 4 23.17.11.25.13.11 Accordion Folding Passage Grilles 5 23.17.11.25.15 Rolling Grilles 4 23.17.11.27 Access Doors 3 23.17.11.27.11 Trap Doors 4 23.17.11.27.13 Access Doors 4 23.17.11.27.15 Floor Hatches 4 23.17.11.27.17 Roof Hatches 4 23.17.11.27.19 Security Floor Hatches 4 23.17.11.27.21 Security Roof Hatches 4 23.17.11.27.21.11 Forced Entry and Ballistic Resistant Roof Hatches 5 23.17.11.27.21.13 Ballistic Resistant Roof Hatches 5 23.17.11.27.23 Man Hole Accesses 4 23.17.11.29 Access Panels 3 23.17.11.29.11 Equipment Access Panels 4 23.17.11.31 Fire Doors 3 23.17.11.31.11 Fire Rated Doors 4 23.17.11.31.11.11 Fire Rated Overhead Doors 5 23.17.11.31.11.13 Fire Rated Rolling Doors 5 23.17.11.31.11.15 Fire Rated Sliding Doors 5 23.17.11.31.11.17 Fire Rated Hinged Doors 5 23.17.11.31.11.19 Fire Rated Revolving Doors 5 23.17.11.31.13.11 Temperature Rate of Rise Fire Rated Overhead Doors 5 23.17.11.31.13.13 Temperature Rate of Rise Fire Rated Rolling Doors 5 23.17.11.31.13.15 Temperature Rate of Rise Fire Rated Sliding Doors 5 23.17.11.31.13.17 Temperature Rate of Rise Fire Rated Hinged Doors 5 23.17.11.33 Temperature Rate of Rise Fire Rated Doors 4 23.17.11.33.19 Temperature Rate of Rise Fire Rated Revolving Doors 5 23.17.11.35 Fire Shutters 3 23.17.11.37 Controlled Environment Doors 3 23.17.11.37.11 Cold Storage Doors 4 23.17.11.37.13 Sound Control Doors 4 23.17.11.37.15 Radiation Protection Doors 4 23.17.11.37.15.11 Electromagnetic Shielding Doors 5 23.17.11.37.15.13 Radio Frequency Protection Doors 5 23.17.11.37.15.15 BO Shielding Doors 5 23.17.11.37.15.17 X Ray Protection Doors 5 23.17.11.37.15.19 Nuclear Radiation Protection Doors 5 23.17.11.37.15.21 High Energy Magnetic Pulse Protection Doors 5 23.17.11.39 Detention Doors 3 23.17.11.41 Hanger Doors 3 23.17.11.43 Lightproof Doors 3 23.17.11.43.11 Revolving Darkroom Door 4 23.17.11.45 Traffic Doors 3 23.17.11.45.11 Flexible Traffic Doors 4 23.17.11.45.13 Flexible Strip Doors 4 23.17.11.45.15 Rigid Panel Traffic Doors 4 23.17.11.45.17 Rapid Opening Doors 4 23.17.11.47 Pressure Resistant Doors 3 23.17.11.47.11 Airtight Doors 4 23.17.11.47.13 Watertight Doors 4 23.17.11.49 Security Rated Door 3 23.17.11.49.11 Blast Resistant Doors 4 23.17.11.49.13 Forced Entry Door 4 23.17.11.49.13.11 Multi Forced Entry Lock Door 5 23.17.11.49.13.13 Single Forced Entry Lock Door 5 23.17.11.49.15 Forced Entry and Ballistic Resistant Door 4 23.17.11.49.17 Ballistic Resistant Door 4 23.17.13.00 Windows 2 23.17.13.11 Window Components 3 23.17.13.11.11 Window Sections 4 23.17.13.11.13 Window Linings and Boards 4 23.17.13.11.15 Window Vents 4 23.17.13.11.17 Window Frames 4 23.17.13.11.19 Transoms 4 23.17.13.11.21 Sidelites 4 23.17.13.11.23 Retractable Screens 4 23.17.13.13 Metal Windows 3 23.17.13.13.11 Metal Fixed Windows 4 23.17.13.13.13 Metal Horizontal Sliding Windows 4 23.17.13.13.15 Metal Single Hung Windows 4 23.17.13.13.17 Metal Double Hung Windows 4 23.17.13.13.19 Metal Triple Hung Windows 4 23.17.13.13.21 Metal Awning Windows 4 23.17.13.13.23 Metal Casement Windows 4 23.17.13.13.25 Metal Hopper Windows 4 23.17.13.13.27 Metal Vertical Pivoted Windows 4 23.17.13.13.29 Metal Jalousie Windows 4 23.17.13.15 Wood Windows 3 23.17.13.15.11 Wood Fixed Windows 4 23.17.13.15.13 Wood Horizontal Sliding Windows 4 23.17.13.15.15 Wood Single Hung Windows 4 23.17.13.15.17 Wood Double Hung Windows 4 23.17.13.15.19 Wood Triple Hung Windows 4 23.17.13.15.21 Wood Awning Windows 4 23.17.13.15.23 Wood Casement Windows 4 23.17.13.15.25 Wood Hopper Windows 4 23.17.13.15.27 Wood Vertical Pivoted Windows 4 23.17.13.15.29 Wood Jalousie Windows 4 23.17.13.17 Plastic Windows 3 23.17.13.17.11 Plastic Fixed Windows 4 23.17.13.17.13 Plastic Horizontal Sliding Windows 4 23.17.13.17.15 Plastic Single Hung Windows 4 23.17.13.17.17 Plastic Double Hung Windows 4 23.17.13.17.19 Plastic Triple Hung Windows 4 23.17.13.17.21 Plastic Awning Windows 4 23.17.13.17.23 Plastic Casement Windows 4 23.17.13.17.25 Plastic Hopper Windows 4 23.17.13.17.27 Plastic Vertical Pivoted Windows 4 23.17.13.17.29 Plastic Jalousie Windows 4 23.17.13.17.31 Plastic Jalousie Awning Windows 4 23.17.13.19 Composite Windows 3 23.17.13.19.11 Composite Fixed Windows 4 23.17.13.19.13 Composite Horizontal Sliding Windows 4 23.17.13.19.15 Composite Single Hung Windows 4 23.17.13.19.17 Composite Double Hung Windows 4 23.17.13.19.19 Composite Triple Hung Windows 4 23.17.13.19.21 Composite Awning Windows 4 23.17.13.19.23 Composite Casement Windows 4 23.17.13.19.25 Composite Hopper Windows 4 23.17.13.19.27 Composite Vertical Pivoted Windows 4 23.17.13.19.29 Composite Jalousie Windows 4 23.17.13.19.31 Composite Jalousie Awning Windows 4 23.17.13.21 Projecting Windows 3 23.17.13.21.11 Bay Windows 4 23.17.13.21.11.11 Angles Bay Windows 5 23.17.13.21.11.13 Box Bay Windows 5 23.17.13.21.13 Bow Windows 4 23.17.13.23 Roof Windows 3 23.17.13.25 Masonry Windows 3 23.17.13.25.11 Glass Masonry Unit Windows 4 23.17.13.27 Special Purpose Windows 3 23.17.13.27.11 Fire Rated Windows 4 23.17.13.27.13 Detention Windows 4 23.17.13.27.15 Pass Windows 4 23.17.13.27.17 Controlled Environment Windows 4 23.17.13.27.17.11 Sound Control Windows 5 23.17.13.27.17.13 Radiation Protection Windows 5 23.17.13.27.17.13.11 Electromagnetic Shielding Windows 6 23.17.13.27.17.13.13 BO Shielding Windows 6 23.17.13.27.17.13.15 Radio Frequency Protection Windows 6 23.17.13.27.17.13.17 X Ray Protection Windows 6 23.17.13.27.17.13.19 Nuclear Radiation Protection Windows 6 23.17.13.27.17.13.21 High Energy Magnetic Pulse Protection Windows 6 23.17.13.29 Security Windows 3 23.17.13.29.11 Ballistic Resistant Windows 4 23.17.13.29.11.11 Teller Forced Entry and Ballistic Resistant Windows 5 23.17.13.29.13 Blast Resistant Windows 4 23.17.13.29.13.11 Blast Resistant Structural Muntin Windows 5 23.17.13.29.13.13 Blast Resistant Window Frames 5 23.17.13.29.15 Impact Resistant Windows 4 23.17.13.29.17 Forced Entry Resistant Windows 4 23.17.13.29.19 Radio Frequency Shielding Windows 4 23.17.13.29.21 Security Window Films 4 23.17.13.29.21.11 Shatter Resistant Security Window Films 5 23.17.13.29.23 Security Window Curtains 4 23.17.13.29.23.11 Security Window Blast Curtains 5 23.17.15.00 Glazing 2 23.17.15.11 Glass Glazing 3 23.17.15.11.11 Bent Glass 4 23.17.15.11.13 Chemically Strengthened Glass 4 23.17.15.11.15 Coated Glass 4 23.17.15.11.17 Composite Glass 4 23.17.15.11.19 Decorative Glass 4 23.17.15.11.21 Fire Rated Glass 4 23.17.15.11.23 Float Glass 4 23.17.15.11.25 Heat Strengthened Glass 4 23.17.15.11.27 Impact Resistant Glass 4 23.17.15.11.29 Insulating Glass 4 23.17.15.11.31 Laminated Glass 4 23.17.15.11.33 Low Emissivity Glass 4 23.17.15.11.35 Rolled Glass 4 23.17.15.11.37 Spandrel Glass 4 23.17.15.11.39 Tempered Glass 4 23.17.15.11.41 Wired Glass 4 23.17.15.13 Plastic Glazing 3 23.17.15.13.11 Ballistics Resistant Plastic Glazing 4 23.17.15.13.13 Decorative Plastic Glazing 4 23.17.15.13.15 Insulating Plastic Glazing 4 23.17.15.13.17 Translucent Plastic Glazing 4 23.17.15.13.19 Transparent Plastic Glazing 4 23.17.15.15 Security Glass 3 23.17.15.15.11 Laminated Security Glass 4 23.17.15.17 Tinted Glass 3 23.17.15.19 Glazing by Special Function 3 23.17.15.19.11 Security Glazing 4 23.17.15.19.13 Ballistics Resistant Glass Glazing 4 23.17.15.19.15 Pressure Resistant Glazing 4 23.17.15.19.17 Hurricane Resistant Glazing 4 23.17.15.19.19 Radiation Resistant Glazing 4 23.17.15.19.21 Switchable Privacy Glass 4 23.17.15.21 Glazing Components 3 23.17.15.21.11 Glazing Frames 4 23.17.15.21.13 Glazing Sections 4 23.17.15.21.15 Mechanical Glazing Fasteners 4 23.17.15.23 Glazing Accessories 3 23.17.15.23.11 Glazing Beads 4 23.17.15.23.13 Condensation Channels 4 23.17.15.23.15 Glazing Sealants and Tapes 4 23.17.15.23.17 Glazing Gaskets 4 23.17.15.23.19 Glazing Leading Material 4 23.17.15.25 Protective Films 3 23.17.15.25.11 Solar Control Films 4 23.17.15.25.13 Safety Films 4 23.17.15.25.15 Security Films 4 23.17.15.25.17 Decorative Films 4 23.17.17.00 Skylights 2 23.17.17.11 Skylight Components 3 23.17.17.11.11 Skylight Hardware 4 23.17.17.13 Unit Skylights 3 23.17.17.13.11 Domed Unit Skylights 4 23.17.17.13.13 Pyramidal Unit Skylights 4 23.17.17.13.15 Vaulted Unit Skylights 4 23.17.17.13.17 Single Slope Unit Skylights 4 23.17.17.13.19 Octagonal Unit Skylights 4 23.17.17.13.21 Tubular Skylights 4 23.17.17.15 Metal Framed Skylights 3 23.17.17.15.11 Domed Metal Framed Skylights 4 23.17.17.15.13 Pyramidal Metal Framed Skylights 4 23.17.17.15.15 Ridge Metal Framed Skylights 4 23.17.17.15.17 Vaulted Metal Framed Skylights 4 23.17.17.15.19 Single Slope Metal Framed Skylights 4 23.17.17.15.21 Octagonal Metal Framed Skylights 4 23.17.19.00 Hardware for Openings 2 23.17.19.11 Hardware for Doors 3 23.17.19.11.11 Rotation, Pivoting Door Gear 4 23.17.19.11.13 Sliding Door Gear 4 23.17.19.11.15 Door Guiding Hardware 4 23.17.19.11.17 Door Holding Hardware 4 23.17.19.11.17.11 Door Hold Open Hardware 5 23.17.19.11.19 Door Closing Hardware 4 23.17.19.11.19.11 Door Closers 5 23.17.19.11.19.11.11 Manual Floor Door Closers 6 23.17.19.11.19.11.13 Manual Surface Door Closers 6 23.17.19.11.19.11.15 Manual Concealed Overhead Door Closers 6 23.17.19.11.19.11.17 Power Operator Floor Door Closers 6 23.17.19.11.19.11.19 Power Operator Surface Door Closers 6 23.17.19.11.19.11.21 Power Operator Concealed Overhead Door Closers 6 23.17.19.11.21 Door Barrier Locks 4 23.17.19.11.21.11 Door Deadbolt Locks 5 23.17.19.11.21.13 Door Chains 5 23.17.19.11.21.15 Door Electric Strike Locks 5 23.17.19.11.21.17 Door Electromagnetic Locks 5 23.17.19.11.21.17.11 Door Time Locks 6 23.17.19.11.21.17.13 Door Time Delay Combination Locks 6 23.17.19.11.21.19 Door Latches 5 23.17.19.11.21.21 Door Mortise Locks 5 23.17.19.11.21.21.11 Door Electric Mortise Locks 6 23.17.19.11.21.21.13 Door Electronic Mortise Locks 6 23.17.19.11.21.23 Door Pin Tumbler Locks 5 23.17.19.11.21.23.11 Door Tubular Pin Tumbler Locks 6 23.17.19.11.21.25 Door Flush Bolts 5 23.17.19.11.23 Door Cores 4 23.17.19.11.25 Door Cylinders 4 23.17.19.11.27 Door Key Control Systems 4 23.17.19.11.29 Personnel Door Access 4 23.17.19.11.29.11 Door Position Switches 5 23.17.19.11.29.13 Door Emergency Exit Panic Bars 5 23.17.19.11.29.15 Door End of Line Devices 5 23.17.19.11.29.17 Door Request to Exit Switches 5 23.17.19.11.29.19 Personnel Access Door Keypads 5 23.17.19.11.29.19.11 Door Infrared Request to Exit Switches 6 23.17.19.11.31 Automatic Door Controls and Operators 4 23.17.19.11.31.11 Card Key Door Locking Hardware 5 23.17.19.11.31.13 Electrical Door Locking Control 5 23.17.19.11.31.15 Electromagnetic Door Holders 5 23.17.19.11.31.17 Sensors for Automatic Doors 5 23.17.19.11.33 Door Exiting Hardware 4 23.17.19.13 Hardware for Windows 3 23.17.19.13.11 Sliding Window Gear 4 23.17.19.13.11.11 Horizontal Sliding Window Gear 5 23.17.19.13.11.13 Vertical Sliding Window Gear 5 23.17.19.13.13 Horizontal Pivoting Window Gear 4 23.17.19.13.15 Window Tilt and Turn Gear 4 23.17.19.13.17 Louver Gear 4 23.17.19.13.19 Automatic Window Equipment 4 23.17.19.13.21 Window Barrier Locks 4 23.17.19.13.21.11 Window Deadbolt Locks 5 23.17.19.13.21.13 Window Latches 5 23.17.19.13.21.15 Window Mortise Locks 5 23.17.19.13.21.17 Window Flush Bolts 5 23.17.19.13.23 Window Lifts 4 23.17.19.13.25 Window Operators 4 23.17.19.13.25.11 Manual Surface Window Closers 5 23.17.19.13.25.13.11 Manual Concealed Overhead Window Closers 5 23.17.19.13.25.15.11 Power Operator Surface Window Closers 5 23.17.19.13.25.17.11 Power Operator Concealed Overhead Window Closers 5 23.17.19.15 Weatherstripping and Seals 3 23.17.19.15.11 Door Weatherstripping and Seals 4 23.17.19.15.11.11 Acoustic Seals 5 23.17.19.15.11.13 Astragals 5 23.17.19.15.11.15 Perimeter Gasketing 5 23.17.19.15.13 Thresholds 4 23.17.19.15.15 Window Weatherstripping and Seals 4 23.17.19.17 Other Openings Hardware 3 23.17.19.17.11 Door Stops 4 23.17.21.00 Protection of Openings 2 23.17.21.11 Exterior Protection of Openings 3 23.17.21.11.11 Projecting Screens 4 23.17.21.11.11.11 Solid Canopies 5 23.17.21.11.11.13 Louvered Canopies 5 23.17.21.11.11.15 Solid Vertical Fins 5 23.17.21.11.11.17 Louvered Vertical Fins 5 23.17.21.11.11.19 Manual Awnings 5 23.17.21.11.11.21 Powered Awnings 5 23.17.21.11.13 Exterior Shutters 4 23.17.21.11.13.11 Folding Exterior Shutters 5 23.17.21.11.13.13 Shutter Components 5 23.17.21.11.13.13.11 Roller Shutter Gear 6 23.17.21.11.13.13.13 Roller Shutter Sections 6 23.17.21.11.13.13.15 Roller Shutter Casings 6 23.17.21.11.13.15 Sliding Exterior Shutters 5 23.17.21.11.13.17 Swinging Exterior Shutters 5 23.17.21.11.13.19 Coiling Exterior Shutters 5 23.17.21.11.15 Exterior Louvers and Grilles 4 23.17.21.11.15.11 Fixed Exterior Louvers and Grilles 5 23.17.21.11.15.13 Roller Exterior Louvers and Grilles 5 23.17.21.11.15.15 Sliding Exterior Louvers and Grilles 5 23.17.21.11.17 Storm Panels 4 23.17.21.11.17.11 Demountable Storm Panels 5 23.17.21.11.17.13 Movable Storm Panels 5 23.17.21.13 Interior Window Treatment 3 23.17.21.13.11 Window Blinds 4 23.17.21.13.11.11 Horizontal Window Blinds 5 23.17.21.13.11.13 Vertical Window Blinds 5 23.17.21.13.11.15 Window Blind Components 5 23.17.21.13.11.15.11 Window Slats 6 23.17.21.13.11.15.13 Window Vanes 6 23.17.21.13.11.15.15 Blinds Hardware 6 23.17.21.13.13 Curtains and Drapes 4 23.17.21.13.13.11 Drapery Tracks 5 23.17.21.13.15 Window Interior Shutters 4 23.17.21.13.17 Window Shades 4 23.17.21.13.17.11 Cellular/Pleated Shades 5 23.17.21.13.17.13 Roller Shades 5 23.17.21.15 Fire and Smoke Shutters and Curtains 3 23.17.21.15.11 Fire Shutters 4 23.17.21.15.11.11 Vertical Fire Shutters 5 23.17.21.15.11.13 Horizontal Fire Shutters 5 23.17.21.15.13 Smoke Curtains 4 23.17.21.15.13.11 Water Spray Smoke Curtains 5 23.17.21.15.15 Smoke Shutters 4 23.17.21.17 Insect Screens 3 23.17.21.17.11 Complete Insect Screens 4 23.17.21.17.13 Components 4 23.17.21.17.13.11 Frames for Insect Screens 5 23.17.21.17.13.13 Mesh for Insect Screens 5 23.17.23.00 Circulation and Escape Products 2 23.17.23.11 Ramps 3 23.17.23.13 Walkways 3 23.17.23.15 Ladders 3 23.17.23.15.11 Ladder Component Products 4 23.17.23.15.11.11 Ladder Hardware 5 23.17.23.15.11.13 Rungs 5 23.17.23.15.13 Vertical Ladders 4 23.17.23.15.15 Ship Ladders 4 23.17.23.17 Stairs 3 23.17.23.17.11 Stair Component Products 4 23.17.23.17.11.11 Stair Treads 5 23.17.23.17.11.13 Stair Nosings 5 23.17.23.17.11.15 Stair Tread Coverings 5 23.17.23.17.11.17 Stair Railings 5 23.17.23.17.11.19 Stair Handrails 5 23.17.23.17.11.21 Stair Barrier Gates 5 23.17.23.17.13 Spiral Stairs 4 23.17.23.17.13.11 Metal Spiral Stairs 5 23.17.23.17.13.13 Wood Spiral Stairs 5 23.17.23.17.15 Retractable Stairs 4 23.17.23.19 Fire Escapes 3 23.17.23.19.11 Escape Ladders, Stairs 4 23.17.23.19.11.11 Fire Escapes 5 23.17.23.19.13 Escape Slides 4 23.17.23.21 Evacuation Equipment 3 23.17.23.21.11 Evacuation Slings 4 23.17.23.21.13 Evacuation Chairs 4 23.17.25.00 Circulation Guiding and Protection Products 2 23.17.25.11 Guardrails 3 23.17.25.11.11 Guardrail Component Products 4 23.17.25.11.11.11 Cable Infill Systems 5 23.17.25.11.11.13 Infill Panels 5 23.17.25.11.11.15 Posts, Newel Posts, Pickets 5 23.17.25.11.11.17 Railing 5 23.17.25.13 Handrails 3 23.17.25.13.11 Rope Handrails 4 23.17.25.13.13 Capping 4 23.17.25.13.15 Chain Handrails 4 23.17.25.15 Impact Protection Products 3 23.17.25.15.11 Impact Guard Rails 4 23.17.25.15.11.11 Bumper Guards 5 23.17.25.15.13 Corner Guards 4 23.17.25.15.15 Column Protectors 4 23.17.25.15.17 Door and Wall Protector Products 4 23.17.25.15.17.11 Impact Resistant Wall Protection Products 5 23.19.00.00 Specialty Products 1 23.19.11.00 Information Display Specialties 2 23.19.11.11 Information Signs 3 23.19.11.13 Display Lettering 3 23.19.11.15 Display Numerals 3 23.19.11.17 Notice Boards 3 23.19.11.19 Writing Boards 3 23.19.11.19.11 Interactive Multi Media Whiteboards 4 23.19.11.19.13 Chalk Boards 4 23.19.11.19.15 Dry Erase Boards 4 23.19.11.19.17 Drawing Boards 4 23.19.11.21 Plaques 3 23.19.11.23 Poster Display Units 3 23.19.11.25 Display Screens 3 23.19.11.27 Pictograms 3 23.19.11.29 Directory Boards 3 23.19.11.31 Electronic Copy Boards 3 23.19.11.33 Magnetic Boards 3 23.19.13.00 Lockers 2 23.19.13.11 Metal Lockers 3 23.19.13.13 Plastic Laminate Lockers 3 23.19.13.15 Solid Core Lockers 3 23.19.15.00 Communication Specialties 2 23.19.15.11 Mail Boxes 3 23.19.15.13 Mail Racks 3 23.19.15.15 Pigeonholes 3 23.19.15.17 Mail Trolleys 3 23.19.15.19 Mail Handling Equipment 3 23.19.15.21 Telephone Booths 3 23.19.17.00 Fireplaces 2 23.19.17.11 Electric Fireplace 3 23.19.17.13 Fuel Oil Fireplace 3 23.19.17.15 Gas Fireplace 3 23.19.17.17 Solid Fuel Fireplace 3 23.19.17.19 Fireplace Doors 3 23.19.17.21 Fireplace Water Heaters 3 23.19.19.00 Flue and Chimney Products 2 23.19.19.11 Complete Flue and Chimney Systems 3 23.19.19.11.11 Chimney Gas Vents 4 23.19.19.11.13 Fabricated Stacks 4 23.19.19.11.15 Fabricated Breechings and Accessories 4 23.19.19.11.17 Insulated Sectional Chimneys 4 23.19.19.13 Fireplace Ductwork 3 23.19.19.13.11 Fireplace B Vent Ductwork 4 23.19.19.13.13 Fireplace Direct Vent Ductwork 4 23.19.19.13.15 Fireplace Free Vent Ductwork 4 23.19.19.13.17 Fireplace Tri Wall Vent Ductwork 4 23.19.19.13.19 Fireplace Dampers 4 23.19.19.15 Flue and Chimney Systems Components 3 23.19.19.15.11 Draft Control Devices 4 23.19.19.15.13 Fireplace Lintels 4 23.19.19.15.15 Flue Linings 4 23.19.19.15.17 Flue Caps 4 23.19.19.15.19 Flue Cowls 4 23.19.19.15.21 Chimney Dampers 4 23.19.19.15.23 Fire Shutter Extinguishers 4 23.19.19.15.25 Flue Gas Purifiers 4 23.19.21.00 Hearths 2 23.19.23.00 Kilns 2 23.19.25.00 Pest Control Devices 2 23.19.25.11 Bird Control Devices 3 23.19.25.11.11 Roost Inhibitors 4 23.19.25.11.11.11 Bird Wire 5 23.19.25.11.11.13 Bird Spikes 5 23.19.25.11.11.15 Bird Netting 5 23.19.25.11.13 Bird Flight Diverters 4 23.19.25.11.15 Bird Repellant Devices 4 23.19.25.11.15.11 Sonic Repellant Devices 5 23.19.25.11.15.13 Ultra Sonic Repellant Devices 5 23.19.25.11.15.15 Visual Devices 5 23.19.25.11.17 Bird Attractors 4 23.19.25.11.19 Bird Control Accessories 4 23.19.25.11.19.11 Mounting Clips 5 23.19.25.11.19.13 Extension Speakers 5 23.19.25.11.19.15 Solar Panels 5 23.19.25.11.19.17 Spikes Adhesives 5 23.19.25.11.19.19 Foot Pumps 5 23.19.25.11.19.21 Caulking Guns 5 23.19.25.13 Insect Control Devices 3 23.19.25.13.11 Electronic Insect Repellers 4 23.19.25.13.11.11 Automatic Misting Systems 5 23.19.25.13.11.13 Vacuum Systems 5 23.19.25.13.11.15 Sonic Repellers 5 23.19.25.13.11.17 Ultrasonic Repellers 5 23.19.25.13.11.19 Electromagnetic Repellers 5 23.19.25.13.13 Fly Traps 4 23.19.25.13.15 Screens 4 23.19.25.13.17 Foam Sealants 4 23.19.25.13.19 Fly Boards 4 23.19.25.13.21 Insect Control Accessories 4 23.19.25.13.21.11 Nozzles 5 23.19.25.13.21.13 Tubing 5 23.19.25.13.21.15 Risers 5 23.19.25.13.21.17 Fittings 5 23.19.25.13.21.19 Remote Controls 5 23.19.25.15 Rodent Control Devices 3 23.19.25.15.11 Traps 4 23.19.25.15.11.11 Snap Traps 5 23.19.25.15.11.13 Glue Traps 5 23.19.25.15.11.15 Sticky Traps 5 23.19.25.15.11.17 Electronic Traps 5 23.19.25.15.13 Ultrasonic Rodent Control Devices 4 23.19.25.15.15 Electronic Rodent Control Devices 4 23.19.25.15.17 Proofing Devices 4 23.19.25.15.19 Tracking Products 4 23.19.25.15.21 Spray Devices 4 23.19.25.15.23 Rodent Control Accessories 4 23.19.27.00 Manufactured Exterior Specialties 2 23.19.27.11 Weathervanes 3 23.19.27.13 Clocks 3 23.19.27.15 Cupolas 3 23.19.27.17 Spires 3 23.19.27.19 Steeples 3 23.19.27.21 Towers 3 23.19.27.23 Industrial Breechings 3 23.19.27.23.11 Industrial Breechings 4 23.19.27.23.13 Fabricated Industrial Breechings 4 23.19.27.23.15 Fabricated Industrial Breechings Accessories 4 23.19.27.25 Industrial Chimneys 3 23.19.27.25.11 Industrial Chimney Shafts 4 23.19.27.25.13 Industrial Chimney Linings 4 23.19.27.25.15 Industrial Chimney Draft Control Devices 4 23.19.27.25.17 Industrial Insulated Sectional Chimneys 4 23.19.27.27 Industrial Stacks 3 23.19.29.00 Complete Buildings 2 23.19.29.11 Pre Engineered Structures 3 23.19.29.11.11 Pre Engineered Structure Component 4 23.19.29.11.11.11 Lift Shaft Components 5 23.19.29.11.13 Framed Pre Engineered Buildings 4 23.19.29.11.15 Panel Structure Pre Engineered Buildings 4 23.19.29.11.17 Cubicle Structure Pre Engineered Buildings 4 23.19.29.11.19 Air Supported Pre Engineered Buildings 4 23.19.29.11.21 Cable Supported Pre Engineered Buildings 4 23.19.29.11.23 Fabric Pre Engineered Building Structures 4 23.19.29.11.25 Prefabricated Dome Structures 4 23.19.29.11.27 Portable Buildings 4 23.19.29.11.29 Mobile Buildings 4 23.19.29.13 Covers and Shelters 3 23.19.29.13.11 General Purpose Shelters 4 23.19.29.13.13 Shelters for Public Transport 4 23.19.29.13.13.11 Bus Stop Shelters 5 23.19.29.13.13.13 Train Platform Shelters 5 23.19.29.13.15 Walkway Coverings 4 23.19.29.13.17 Shelters for Civil Protection 4 23.19.29.13.19 Animal Shelters 4 23.19.29.13.19.11 Kennels 5 23.19.29.13.21 Car Shelters 4 23.19.29.13.23 Shelters for Services 4 23.19.29.13.25 Garden Umbrellas 4 23.19.29.15 Special Purpose Buildings 3 23.19.29.15.11 Observatories 4 23.19.29.15.13 Control Booths 4 23.19.29.15.15 Greenhouses 4 23.19.29.15.15.11 Glazed Greenhouse Structures 5 23.19.29.15.17 Summerhouses 4 23.19.29.15.17.11 Gazebos 5 23.19.29.15.17.13 Pavilions 5 23.19.29.15.19 Kiosks 4 23.19.29.15.21 Public Restrooms 4 23.19.29.15.23 Sauna Buildings 4 23.19.29.15.25 Funerary Construction Products 4 23.19.29.15.25.11 Preassembled Mausoleums 5 23.19.29.15.27 General Purpose Booths 4 23.19.29.15.27.11 Ticket Booths 5 23.19.29.15.27.13 Parking Attendant Booths 5 23.19.29.15.27.15 Toll Booths 5 23.19.29.15.27.17 Guard Booths 5 23.19.29.15.27.19 Valet Booths 5 23.19.29.17 Building Modules 3 23.19.29.17.11 Prison Cells 4 23.19.29.17.13 Hotel Rooms 4 23.19.29.17.15 Dormitory Rooms 4 23.19.29.19 Integrated Assemblies 3 23.19.29.19.11 Sound, Vibration and Seismic Control Products 4 23.19.29.19.11.11 Floating Floor Construction Products 5 23.19.31.00 Room Units 2 23.19.31.11 General Purpose Room Units 3 23.19.31.11.11 Prefabricated General Purpose Rooms 4 23.19.31.13 Storage Room Units 3 23.19.31.15 Special Purpose Rooms 3 23.19.31.15.11 Athletic Rooms 4 23.19.31.15.11.11 Handball Racquetball Courts 5 23.19.31.15.13 Conservatories 4 23.19.31.15.13.11 Solarium Specialties 5 23.19.31.15.15 Planetariums 4 23.19.31.15.17 Saunas 4 23.19.31.15.19 Steam Baths 4 23.19.31.17 Sanitary Room Units 3 23.19.31.17.11 Bathroom Units 4 23.19.31.17.13 Lavatory Units 4 23.19.31.19 Controlled Environment Rooms 3 23.19.31.19.11 Clean Rooms 4 23.19.31.19.13 Insulated Rooms 4 23.19.31.19.13.11 Cold Storage Rooms 5 23.19.31.19.15 Sound Conditioned Rooms 4 23.19.31.19.15.11 Practice Booths 5 23.19.31.19.17 Hyperbaric Rooms 4 23.19.31.19.19 Radiation Protected Rooms 4 23.19.31.19.19.11 Electromagnetic Shielded Rooms 5 23.19.31.19.19.13 RF Shielded Rooms 5 23.19.31.19.19.15 BO Shielded Rooms 5 23.19.31.19.19.17 Radio Frequency Protected Rooms 5 23.19.31.19.19.19 X Ray Protected Rooms 5 23.19.31.19.19.21 Nuclear Radiation Protected Rooms 5 23.19.31.19.19.23 High Energy Magnetic Pulse Protected Rooms 5 23.19.31.21 Plant and Control Room Units 3 23.19.31.21.11 Plant Office Shelters and Booths 4 23.19.31.23 Corridor Units 3 23.21.00.00 Furnishings, Fixtures and Equipment Products 1 23.21.11.00 Commercial Furniture 2 23.21.11.11 Commercial Storage Units 3 23.21.11.11.11 Commercial Storage Shelves 4 23.21.11.11.13 Commercial Storage Supports 4 23.21.11.11.15 Commercial Storage Racking 4 23.21.11.11.17 Commercial Mobile Storage Units 4 23.21.11.11.19 Commercial Filing Cabinets 4 23.21.11.11.21 Architecture Plan Chests 4 23.21.11.11.23 Commercial Desks 4 23.21.11.11.25 Commercial Bookcases 4 23.21.11.11.27 Commercial Key Hangers 4 23.21.13.00 Retail and Office Equipment and Furnishings 2 23.21.13.11 Registration Equipment 3 23.21.13.13 Checkroom Equipment 3 23.21.13.15 Mercantile Equipment and Furnishings 3 23.21.13.17 Barber Shop Equipment 3 23.21.13.19 Beauty Shop Equipment 3 23.21.13.21 Cash Registers 3 23.21.13.23 Checkout Equipment 3 23.21.13.25 Office Equipment 3 23.21.13.25.11 Drafting Equipment 4 23.21.13.25.13 Plotters 4 23.21.13.25.15 Drawing Equipment 4 23.21.13.25.17 Office Accessories 4 23.21.15.00 Wardrobe and Closet Specialties 2 23.21.15.11 Wardrobes 3 23.21.15.13 Chests of Drawers 3 23.21.15.15 Clothing Lockers 3 23.21.15.17 Clothing Racks 3 23.21.15.17.11 Coat Racks 4 23.21.15.17.13 Hat Racks 4 23.21.15.19 Clothing Hangers 3 23.21.15.19.11 Shoe Trees 4 23.21.15.19.13 Coat Hooks 4 23.21.15.19.15 Coat Hangers 4 23.21.15.19.17 Coat Rails 4 23.21.15.21 Cloakroom Units 3 23.21.15.23 Umbrella Storage Stands 3 23.21.15.25 Checkroom Equipment 3 23.21.15.25.11 Manual Checkroom Equipment 4 23.21.15.25.13 Automated Checkroom Equipment 4 23.21.15.27 Clothing Shelving Units 3 23.21.15.27.11 Clothing Shelves 4 23.21.15.27.13 Clothing Shelving and Storage Units 4 23.21.17.00 Interior Refuse Disposal Furniture 2 23.21.17.11 Interior Waste Bins 3 23.21.17.13 Interior Ash Trays 3 23.21.17.15 Interior Refuse Holders 3 23.21.19.00 Casework 2 23.21.19.11 Modular General Casework 3 23.21.19.11.11 Metal Modular General Casework 4 23.21.19.11.13 Wood Modular General Casework 4 23.21.19.11.15 Plastic Modular General Casework 4 23.21.19.13 Custom General Casework 3 23.21.19.15 Specialty Casework 3 23.21.19.15.11 Bank Specialty Casework 4 23.21.19.15.13 Hospitality Specialty Casework 4 23.21.19.15.15 Medical Specialty Casework 4 23.21.19.15.15.11 Hospital Specialty Casework 5 23.21.19.15.15.13 Nurse Station Specialty Casework 5 23.21.19.15.15.15 Exam Room Specialty Casework 5 23.21.19.15.15.17 Dental Specialty Casework 5 23.21.19.15.15.19 Pharmacy Specialty Casework 5 23.21.19.15.17 Display Specialty Casework 4 23.21.19.15.19 Religious Specialty Casework 4 23.21.19.15.21 Library Specialty Casework 4 23.21.19.15.21.11 Library Specialty Casework Study Carrels 5 23.21.19.15.21.13 Library Specialty Casework Book Stacks 5 23.21.19.15.21.15 Library Specialty Casework Periodical Racks 5 23.21.19.15.23 Educational Specialty Casework 4 23.21.19.15.23.11 Educational Specialty Casework Study Carrels 5 23.21.19.15.25 Laboratory Specialty Casework 4 23.21.19.15.25.11 Metal Laboratory Specialty Casework 5 23.21.19.15.25.13 Plastic-Laminate-Clad Laboratory Specialty Casework 5 23.21.19.15.25.15 Wood Laboratory Specialty Casework 5 23.21.19.15.25.17 Solid-Plastic Laboratory Specialty Casework 5 23.21.19.15.27 Mortuary Specialty Casework 4 23.21.19.15.29 Commercial Kitchen Specialty Casework 4 23.21.19.15.31 Darkroom Specialty Casework 4 23.21.19.15.33 Residential Specialty Casework 4 23.21.19.15.33.11 Residential Kitchen Specialty Casework 5 23.21.19.15.33.13 Residential Bathroom Specialty Casework 5 23.21.19.15.33.15 Residential Dormitory Specialty Casework 5 23.21.19.15.35 Utility Room Specialty Casework 4 23.21.19.15.39 Mailroom Casework 4 23.21.19.17 Casework Components 3 23.21.19.17.11 Casework Component Cabinets 4 23.21.19.17.13 Casework Component Hardware 4 23.21.19.17.15 Casework Component Work Surfaces 4 23.21.21.00 Food Service Equipment and Furnishings 2 23.21.21.11 Commercial Food Services Cabinets 3 23.21.21.11.11 Commercial Hot Cabinets 4 23.21.21.11.13 Commercial Cold Cabinets 4 23.21.21.11.15 Commercial Combination Hot Cold Cabinets 4 23.21.21.11.17 Commercial Pastry Cabinets 4 23.21.21.11.19 Commercial Warming Cabinets 4 23.21.21.11.21 Commercial Snack Cabinets 4 23.21.21.13 Commercial Food Cooking Equipment 3 23.21.21.13.11 Commercial Bain Maries 4 23.21.21.13.13 Commercial Beverage Equipment 4 23.21.21.13.13.11 Commercial Coffee Makers 5 23.21.21.13.13.13 Commercial Coffee Warmers 5 23.21.21.13.13.15 Commercial Iced Tea Makers 5 23.21.21.13.15 Commercial Broilers 4 23.21.21.13.15.11 Commercial Steam Broilers 5 23.21.21.13.15.13 Commercial Infra Red Broilers 5 23.21.21.13.15.15 Commercial Gas Broilers 5 23.21.21.13.17 Commercial Food Cookers 4 23.21.21.13.17.11 Commercial Food Induction Cookers 5 23.21.21.13.17.13 Commercial Pasta Cookers 5 23.21.21.13.17.15 Commercial Food Pressure Cookers 5 23.21.21.13.17.17 Commercial Rice Cookers 5 23.21.21.13.19 Commercial Crepe Machines 4 23.21.21.13.21 Commercial Fryers 4 23.21.21.13.21.11 Commercial Deep Fryers 5 23.21.21.13.21.13 Commercial Pressure Fryers 5 23.21.21.13.23 Commercial Frying Pans 4 23.21.21.13.23.11 Commercial Tilting Frying Pans 5 23.21.21.13.25 Commercial Griddles 4 23.21.21.13.27 Commercial Grills 4 23.21.21.13.27.11 Commercial Barbecue Grills 5 23.21.21.13.27.13 Commercial Char Broiler Grills 5 23.21.21.13.27.15 Commercial Hot Dog Grills 5 23.21.21.13.29 Commercial Kettles 4 23.21.21.13.29.11 Commercial Poacher Kettles 5 23.21.21.13.29.13 Commercial Salmon Kettles 5 23.21.21.13.31 Commercial Ovens 4 23.21.21.13.31.11 Commercial Barbeque Ovens 5 23.21.21.13.31.13 Commercial Combination Convection Ovens 5 23.21.21.13.31.15 Commercial Convection Ovens 5 23.21.21.13.31.17 Commercial Microwave Ovens 5 23.21.21.13.31.19 Commercial Pastry Ovens 5 23.21.21.13.31.21 Commercial Pizza Ovens 5 23.21.21.13.31.23 Commercial Proofer Ovens 5 23.21.21.13.31.25 Commercial Smoker Ovens 5 23.21.21.13.33 Commercial Popcorn Machines 4 23.21.21.13.35 Commercial Ranges 4 23.21.21.13.37 Commercial Rotisseries 4 23.21.21.13.39 Commercial Food Steamers 4 23.21.21.13.39.11 Commercial High Pressure Food Steamer 5 23.21.21.13.41 Commercial Skillets 4 23.21.21.13.41.11 Commercial Tilt Skillets 5 23.21.21.13.43 Commercial Stoves 4 23.21.21.13.45 Commercial Toasters 4 23.21.21.13.45.11 Commercial Toaster Conveyors 5 23.21.21.13.47 Commercial Waffle Irons 4 23.21.21.13.49 Commercial Small Specialized Cooking Equipment 4 23.21.21.15 Commercial Food Services Warming Equipment 3 23.21.21.15.11 Commercial Food Warmers 4 23.21.21.15.13 Commercial Food Warmer Stations 4 23.21.21.15.15 Commercial Hot Plates 4 23.21.21.15.17 Commercial Steam Tables 4 23.21.21.17 Commercial Food Services Cooling Equipment 3 23.21.21.17.11 Commercial Refrigerated Tables 4 23.21.21.19 Commercial Dishwasher Equipment 3 23.21.21.19.11 Commercial Dishwashers 4 23.21.21.19.11.11 Commercial Steam Dishwashers 5 23.21.21.19.11.13 Commercial Dishwasher Conveyors 5 23.21.21.19.11.15 Commercial Dishwasher Tray Conveyors 5 23.21.21.21 Commercial Food Disposal Equipment 3 23.21.21.21.11 Commercial Waste Disposal Units 4 23.21.21.21.13 Commercial Garbage Disposals 4 23.21.21.21.15 Commercial Garbage Pulpers 4 23.21.21.23 Commercial Food Display Equipment 3 23.21.21.23.11 Commercial Food Display Coolers 4 23.21.21.23.11.11 Commercial Freezer Food Display Cases 5 23.21.21.23.11.13 Commercial Heated Food Display Cases 5 23.21.21.23.11.15 Commercial Refrigerated Food Display Cases 5 23.21.21.23.11.17 Commercial Unconditioned Food Display Cases 5 23.21.21.23.13 Commercial Food Guards 4 23.21.21.25 Commercial Food and Beverage Dispensing Equipment 3 23.21.21.25.11 Commercial Soda Fountain Equipment 4 23.21.21.25.13 Commercial Bottled Water Dispensers 4 23.21.21.25.15 Commercial Bowl and Plate Dispensers 4 23.21.21.25.17 Commercial Bread Dispensers 4 23.21.21.25.19 Commercial Cappuccino or Espresso Dispensers 4 23.21.21.25.21 Commercial Carbonated Beverage Dispensers 4 23.21.21.25.23 Commercial Coffee Dispensers 4 23.21.21.25.25 Commercial Condiment Dispensers 4 23.21.21.25.27 Commercial Cream Dispensers 4 23.21.21.25.29 Commercial Cup Dispensers 4 23.21.21.25.31 Commercial Cup and Saucer Dispensers 4 23.21.21.25.33 Commercial Bubbler Dispensers 4 23.21.21.25.35 Commercial Drinking Glass Dispensers 4 23.21.21.25.37 Commercial Flatware Dispensers 4 23.21.21.25.39 Commercial Hot Chocolate Dispensers 4 23.21.21.25.41 Commercial Hot Water Dispensers 4 23.21.21.25.43 Commercial Ice Cream Dispensers 4 23.21.21.25.45 Commercial Milk Dispensers 4 23.21.21.25.47 Commercial Milkshake Dispensers 4 23.21.21.25.49 Commercial Non Carbonated Beverage Dispensers 4 23.21.21.25.49.11 Commercial Refrigerated Non Carbonated Beverage Dispensers 5 23.21.21.25.51 Commercial Plate Dispensers 4 23.21.21.25.53 Commercial Saucer Dispensers 4 23.21.21.25.55 Commercial Slush Dispensers 4 23.21.21.25.57 Commercial Soft Serve Ice Cream Dispensers 4 23.21.21.25.59 Commercial Syrup Pump Dispensers 4 23.21.21.25.61 Commercial Tray Dispensers 4 23.21.21.25.63 Commercial Water Filter System 4 23.21.21.25.65 Commercial Filtration Equipment 4 23.21.21.27 Commercial Refrigerators And Freezers 3 23.21.21.27.11 Commercial Blast Chillers 4 23.21.21.27.13 Commercial Freezers 4 23.21.21.27.13.11 Commercial Blast Freezers 5 23.21.21.27.13.13 Commercial Chest Freezers 5 23.21.21.27.13.15 Commercial Flammable Liquid Freezers 5 23.21.21.27.13.17 Commercial Freeze Drying Equipment 5 23.21.21.27.13.19 Commercial Plate Freezers 5 23.21.21.27.13.21 Commercial Sub Zero Freezers 5 23.21.21.27.13.23 Commercial Upright Freezers 5 23.21.21.27.13.25 Commercial Upright Reach In Freezers 5 23.21.21.27.13.27 Commercial Upright Pass Through Freezers 5 23.21.21.27.13.29 Commercial Upright Roll In Freezers 5 23.21.21.27.13.31 Commercial Walk In Freezers 5 23.21.21.27.15 Commercial Refrigerators 4 23.21.21.27.15.11 Commercial Flammable Liquid Refrigerators 5 23.21.21.27.15.13 Commercial Liquid Nitrogen Refrigerators 5 23.21.21.27.15.15 Commercial Refrigerated Containers 5 23.21.21.27.15.17 Commercial Refrigerated Tanks 5 23.21.21.27.15.19 Commercial Refrigerated Vessels 5 23.21.21.27.15.21 Commercial Upright Refrigerators 5 23.21.21.27.15.23 Commercial Upright Reach In Refrigerators 5 23.21.21.27.15.25 Commercial Upright Pass Through Refrigerators 5 23.21.21.27.15.27 Commercial Upright Roll In Refrigerators 5 23.21.21.27.15.29 Commercial Walk In Refrigerators 5 23.21.21.27.17 Commercial Refrigerator Freezers 4 23.21.21.27.19 Commercial Food Storage Coolers 4 23.21.21.27.19.11 Commercial Walk In Coolers 5 23.21.21.29 Commercial Ice Machines 3 23.21.21.29.11 Commercial Block Ice Makers 4 23.21.21.29.13 Commercial Cube Ice Makers 4 23.21.21.29.15 Commercial Flaker Ice Makers 4 23.21.21.29.17 Commercial Ice Dispensers 4 23.21.21.29.19 Commercial Ice Shaver Dispensers 4 23.21.21.29.21 Commercial Ice Maker Bins 4 23.21.21.31 Commercial Food Preparation Equipment 3 23.21.21.31.11 Commercial Food Mixers 4 23.21.21.31.13 Commercial Food Peelers 4 23.21.21.31.15 Commercial Food Processors 4 23.21.21.31.17 Commercial Food Service Stations 4 23.21.21.31.19 Commercial Food Slicers 4 23.21.21.31.19.11 Commercial Electric Food Slicers 5 23.21.21.31.19.13 Commercial Mechanical Food Slicers 5 23.21.21.31.21 Commercial Food Preparation Tables 4 23.21.21.31.21.11 Commercial Refrigerated Food Preparation Tables 5 23.21.21.31.23 Commercial Drink Making Equipment 4 23.21.21.33 Commercial Food Service Furniture 3 23.21.21.33.11 Commercial Bar Stools 4 23.21.21.33.13 Commercial Restaurant Chairs 4 23.21.21.33.15 Commercial Restaurant Booths 4 23.21.21.33.17 Commercial Restaurant Seating Units 4 23.21.21.33.19 Commercial Restaurant Tables 4 23.21.21.35 Commercial Serving Counters 3 23.21.21.35.11 Commercial Bars 4 23.21.21.35.11.11 Commercial Beverage Bars 5 23.21.21.35.11.13 Commercial Salad Bars 5 23.21.21.35.11.15 Commercial Bar Equipment 5 23.21.21.35.13 Commercial Serving Counters 4 23.21.21.35.13.11 Commercial Condiment Counters 5 23.21.21.35.13.13 Commercial Serving Counters 5 23.21.21.35.15 Commercial Service Line Equipment 4 23.21.21.37 Commercial Food Service Storage Equipment 3 23.21.21.37.11 Commercial Bottle Racks 4 23.21.21.39 Commercial Food Service Delivery Equipment 3 23.21.21.39.11 Commercial Food Delivery Conveyors 4 23.21.21.39.13 Commercial Food Delivery Carts 4 23.21.21.39.15 Commercial Restaurant Turntables 4 23.21.21.41 Commercial Food Service Ventilation Equipment 3 23.21.21.41.11 Commercial Food Hood Equipment 4 23.21.21.41.11.11 Commercial Food Service Hoods 5 23.21.21.41.13 Commercial Food Ventilation Equipment 4 23.21.21.41.13.11 Commercial Food Ventilation Fire Suppression Systems 5 23.21.21.41.13.13 Commercial Catering Ventilation 5 23.21.21.43 Commercial Food Processing Equipment 3 23.21.21.45 Commercial Food Weighing Equipment 3 23.21.21.47 Commercial Food Wrapping Equipment 3 23.21.23.00 Residential Furniture and Equipment 2 23.21.23.11 Complete Residential Dining Room Suites 3 23.21.23.13 Residential Seating 3 23.21.23.13.11 Residential Chairs 4 23.21.23.13.13 Residential Settees 4 23.21.23.13.15 Residential Sofas 4 23.21.23.13.17 Residential Stools 4 23.21.23.13.19 Residential Benches 4 23.21.23.13.21 Residential Chaises Lounges 4 23.21.23.13.23 Residential Sofa Beds 4 23.21.23.13.25 Residential Chair Beds 4 23.21.23.15 Residential Tables 3 23.21.23.15.11 Residential Dining Room Tables 4 23.21.23.15.13 Residential Sideboards 4 23.21.23.15.15 Residential End Tables 4 23.21.23.15.17 Residential Coffee Tables 4 23.21.23.17 Residential Storage Units 3 23.21.23.17.11 Residential Cabinet 4 23.21.23.17.13 Residential China Cabinets 4 23.21.23.17.15 Residential Cupboards 4 23.21.23.17.17 Residential Chests 4 23.21.23.19 Residential Bedroom Furniture 3 23.21.23.19.11 Complete Residential Bedroom Suites 4 23.21.23.19.13 Residential Beds 4 23.21.23.19.13.11 Residential Headboards 5 23.21.23.19.13.13 Residential Footboards 5 23.21.23.19.13.15 Residential Cots 5 23.21.23.19.13.17 Residential Mattresses 5 23.21.23.19.15 Residential Bedside Units 4 23.21.23.19.17 Residential Dressing Tables 4 23.21.23.19.19 Residential Dressers 4 23.21.23.21 Residential Food Cabinets 3 23.21.23.23 Residential Food Cooking Equipment 3 23.21.23.23.11 Residential Broilers 4 23.21.23.23.11.11 Residential Steam Broilers 5 23.21.23.23.11.13 Residential Infra Red Broilers 5 23.21.23.23.11.15 Residential Gas Broilers 5 23.21.23.23.13 Residential Food Cookers 4 23.21.23.23.13.11 Residential Food Induction Cookers 5 23.21.23.23.13.13 Residential Pasta Cookers 5 23.21.23.23.13.15 Residential Food Pressure Cookers 5 23.21.23.23.13.17 Residential Rice Cookers 5 23.21.23.23.15 Residential Crepe Machines 4 23.21.23.23.17 Residential Fryers 4 23.21.23.23.17.11 Residential Deep Fryers 5 23.21.23.23.17.13 Residential Pressure Fryers 5 23.21.23.23.19 Residential Griddles 4 23.21.23.23.21 Residential Grills 4 23.21.23.23.21.11 Residential Barbecue Grills 5 23.21.23.23.21.13 Residential Char Broiler Grills 5 23.21.23.23.21.15 Residential Hot Dog Grills 5 23.21.23.23.23 Residential Kettles 4 23.21.23.23.23.11 Residential Poacher Kettles 5 23.21.23.23.23.13 Residential Salmon Kettles 5 23.21.23.23.25 Residential Ovens and Stoves 4 23.21.23.23.25.11 Residential Stoves 5 23.21.23.23.25.13 Residential Combination Convection Ovens 5 23.21.23.23.25.15 Residential Convection Ovens 5 23.21.23.23.25.17 Residential Gas Ovens 5 23.21.23.23.25.19 Residential Electric Ovens 5 23.21.23.23.25.21 Residential Microwave Ovens 5 23.21.23.23.27 Residential Rotisseries 4 23.21.23.23.29 Residential Food Steamers 4 23.21.23.23.29.11 Residential High Pressure Food Steamer 5 23.21.23.23.31 Residential Small Specialized Cooking Equipment 4 23.21.23.25 Residential Dishwashers 3 23.21.23.25.11 Residential Electric Dishwashers 4 23.21.23.25.13 Residential Gas Dishwashers 4 23.21.23.27 Residential Waste Disposal Units 3 23.21.23.27.11 Residential Garbage Disposals 4 23.21.23.27.13 Residential Garbage Compactors 4 23.21.23.27.13.11 Residential Coffee Dispensers 5 23.21.23.29 Residential Food and Beverage Dispensing Equipment 3 23.21.23.29.11 Residential Cappuccino or Espresso Dispensers 4 23.21.23.29.13 Residential Bubbler Dispensers 4 23.21.23.29.15 Residential Hot Water Dispensers 4 23.21.23.31 Residential Water Filter System 3 23.21.23.33 Residential Refrigerators And Freezers 3 23.21.23.33.11 Residential Freezers 4 23.21.23.33.11.11 Residential Chest Freezers 5 23.21.23.33.11.13 Residential Sub Zero Freezers 5 23.21.23.33.11.15 Residential Upright Freezers 5 23.21.23.33.13 Residential Refrigerators 4 23.21.23.33.13.11 Residential Upright Refrigerators 5 23.21.23.33.15 Residential Refrigerator Freezers 4 23.21.23.35 Residential Ice Machines 3 23.21.23.35.11 Residential Cube Ice Makers 4 23.21.23.35.13 Residential Ice Dispensers 4 23.21.23.37 Residential Food Preparation Equipment 3 23.21.23.37.11 Residential Food Mixers 4 23.21.23.37.13 Residential Food Peelers 4 23.21.23.37.15 Residential Food Processors 4 23.21.23.37.17 Residential Food Slicers 4 23.21.23.37.17.11 Residential Electric Food Slicers 5 23.21.23.37.17.13 Residential Mechanical Food Slicers 5 23.21.23.37.19 Residential Food Preparation Tables 4 23.21.23.39 Residential Kitchen and Dining Room Furniture 3 23.21.23.39.11 Residential Bar Stools 4 23.21.23.39.13 Residential Kitchen and Dining Room Chairs 4 23.21.23.39.15 Residential Kitchen and Dining Room Tables 4 23.21.23.39.17 Residential Bars 4 23.21.23.39.17.11 Residential Beverage Bars 5 23.21.23.39.17.13 Residential Bar Equipment 5 23.21.23.41 Residential Food Storage Equipment 3 23.21.23.41.11 Residential Bottle Racks 4 23.21.23.43 Residential Cooking Ventilation Equipment 3 23.21.23.43.11 Residential Range Hoods 4 23.21.23.43.13 Residential Food Ventilation Equipment 4 23.21.23.45 Residential Clothes Airers 3 23.21.23.45.11 Residential Clothes Stands 4 23.21.23.45.13 Residential Clothes Lines 4 23.21.23.47 Residential Combination Laundry Washer Dryers 3 23.21.23.49 Residential Ironing and Pressing Machines 3 23.21.23.51 Residential Laundry Dryers 3 23.21.23.51.11 Residential Electric Laundry Dryers 4 23.21.23.51.13 Residential Gas Laundry Dryers 4 23.21.23.53 Residential Washing Machines 3 23.21.23.53.11 Residential Front Loading Laundry Washers 4 23.21.23.53.13 Residential Side Loading Laundry Washers 4 23.21.23.53.15 Residential Top Loading Laundry Washers 4 23.21.25.00 Educational and Cultural Equipment and Furnishings 2 23.21.25.11 Group Seating 3 23.21.25.11.11 Auditorium Seating 4 23.21.25.11.11.11 Fixed Audience Seating 5 23.21.25.11.11.13 Portable Audience Seating 5 23.21.25.11.11.13.11 Folding Audience Chairs 6 23.21.25.11.11.13.13 Interlocking Audience Chairs 6 23.21.25.11.11.13.15 Stacking Audience Chairs 6 23.21.25.11.13 Classroom Furniture 4 23.21.25.11.13.11 Seat Assembly 5 23.21.25.11.13.13 Table Assembly 5 23.21.25.11.13.15 Modular Desks 5 23.21.25.11.15 Multiple Use Fixed Seating 4 23.21.25.11.17 Platforms 4 23.21.25.11.17.11 Portable Stages 5 23.21.25.11.17.13 Risers 5 23.21.25.11.19 Language Laboratory Equipment 4 23.21.25.13 Theater and Stage Equipment 3 23.21.25.13.11 Acoustical Shells 4 23.21.25.13.13 Rigging Systems and Controls 4 23.21.25.13.15 Scenery Docks 4 23.21.25.13.17 Suspension Systems 4 23.21.25.13.19 Stage Curtains 4 23.21.25.15 Planetarium Equipment and Furnishings 3 23.21.25.15.11 Planetarium Projectors 4 23.21.25.15.13 Planetarium Seating 4 23.21.25.17 Observatory Equipment and Furnishings 3 23.21.25.17.11 Telescopes 4 23.21.25.19 Ecclesiastical Equipment and Furnishings 3 23.21.25.19.11 Religious Seating 4 23.21.25.19.11.11 Pews 5 23.21.25.19.11.13 Benches 5 23.21.25.19.13 Chancel Furnishings 4 23.21.25.19.13.11 Lecterns 5 23.21.25.19.13.13 Pulpits 5 23.21.25.19.13.15 Choir Screens 5 23.21.25.19.13.17 Altars 5 23.21.25.19.15 Baptisteries 4 23.21.25.19.17 Baptismal Fonts 4 23.21.25.19.19 Instrumental Equipment 4 23.21.25.19.19.11 Organs 5 23.21.25.19.19.13 Organ Cases 5 23.21.25.19.19.15 Screens 5 23.21.25.19.19.17 Bells 5 23.21.25.19.19.19 Carillons 5 23.21.25.19.21 Synagogue Furniture 4 23.21.25.19.23 Mosque Furniture 4 23.21.25.19.25 Temple Furniture 4 23.21.25.21 Library and Archive Equipment and Furnishings 3 23.21.25.21.11 Library Stack Systems 4 23.21.25.21.11.11 Library Shelving 5 23.21.25.21.13 Book Depositories 4 23.21.25.21.15 Book Theft Protection Equipment 4 23.21.25.21.17 Library Furniture 4 23.21.25.21.17.11 Library Filing Furniture 5 23.21.25.21.17.13 Library Display Furniture 5 23.21.25.21.17.15 Study Carrels 5 23.21.25.23 Exhibition Equipment and Furnishings 3 23.21.25.23.11 Display Furniture 4 23.21.25.23.11.11 Display Cabinets 5 23.21.25.23.11.13 Display Racks 5 23.21.25.23.11.15 Display Carousels 5 23.21.25.23.13 Gallery Hanging Systems 4 23.21.25.23.15 Pedestals 4 23.21.25.23.17 Retail Cabinets 4 23.21.25.23.19 Exhibition Stands 4 23.21.25.23.21 Shell Schemes 4 23.21.25.23.23 Exhibit Equipment 4 23.21.27.00 Child Furnishings 2 23.21.27.11 Child Beds 3 23.21.27.11.11 Infant Cradles 4 23.21.27.11.13 Bassinets 4 23.21.27.11.15 Infant Beds 4 23.21.27.11.17 Toddler Beds 4 23.21.27.11.19 Children Beds 4 23.21.27.13 Child Cots 3 23.21.27.13.11 Toddler Cots 4 23.21.27.13.13 Children Cots 4 23.21.27.13.15 Cot Carrier 4 23.21.27.15 Child Playpens 3 23.21.27.17 Child Benches 3 23.21.27.17.11 Toddler Benches 4 23.21.27.17.13 Children Benches 4 23.21.27.19 Child Bathtub 3 23.21.27.19.11 Infant Bathtubs 4 23.21.27.19.13 Toddler Bathtubs 4 23.21.27.19.15 Children Bathtubs 4 23.21.27.21 Child Chairs 3 23.21.27.21.11 Child High Chairs 4 23.21.27.21.13 Child Stools 4 23.21.27.23 Child Play Panels 3 23.21.27.25 Child Indoor Swings 3 23.21.27.25.11 Infant Swings 4 23.21.27.25.13 Toddler Swings 4 23.21.27.27 Child Sofas 3 23.21.27.29 Child Strollers 3 23.21.27.29.11 Child Carriage Strollers 4 23.21.27.29.13 Child Multiple Carriage Strollers 4 23.21.27.29.15 Child Perambulators 4 23.21.27.29.17 Child Buggies 4 23.21.27.31 Child Tables 3 23.21.27.31.11 Diaper Changing Tables 4 23.21.27.33 Child Storage Units 3 23.21.27.33.11 Child File Cabinets 4 23.21.27.33.13 Child Kiosks 4 23.21.27.33.15 Child Shelves 4 23.21.27.33.17 Child Book Display Units 4 23.21.27.33.19 Child Card Catalog Units 4 23.21.27.33.21 Child Cubbies 4 23.21.27.35 Child Dressers 3 23.21.29.00 Athletic and Recreational Equipment 2 23.21.29.11 Athletic or Recreation Screening 3 23.21.29.11.11 Tennis Court Windbreakers 4 23.21.29.13 Athletic Surfacing 3 23.21.29.13.11 Baseball Field Surfacing 4 23.21.29.13.13 Multi Purpose Court Surfacing 4 23.21.29.13.15 Resilient Matting 4 23.21.29.13.17 Synthetic Grass Surfacing 4 23.21.29.13.19 Synthetic Running Track Surfacing 4 23.21.29.13.21 Tennis Court Surfacing 4 23.21.29.15 Athletic Equipment 3 23.21.29.15.11 Bowling Alley Equipment 4 23.21.29.15.13 Goalposts 4 23.21.29.15.15 Nets 4 23.21.29.15.17 Backstops 4 23.21.29.15.19 Scoreboards 4 23.21.29.15.21 Time Clocks 4 23.21.29.15.23 Floor Sockets 4 23.21.29.15.25 Climbing Equipment 4 23.21.29.15.25.11 Climbing Walls 5 23.21.29.15.25.13 Climbing Ropes 5 23.21.29.15.27 Gymnasium Dividers 4 23.21.29.15.29 Wall Mats 4 23.21.29.15.31 Floor Mats 4 23.21.29.15.33 Referee Platforms 4 23.21.29.15.35 Athletic Equipment Storage Racks 4 23.21.29.17 Playground Equipment 3 23.21.29.17.11 Climbing Apparatus 4 23.21.29.17.13 Climbing Walls 4 23.21.29.17.13.11 Harness Equipment 5 23.21.29.17.15 Merry Go Rounds 4 23.21.29.17.17 Playhouse Gardens 4 23.21.29.17.19 Rope Climbing Equipment 4 23.21.29.17.21 Sand Tables 4 23.21.29.17.23 Water Tables 4 23.21.29.17.25 Sandboxes 4 23.21.29.17.27 See Saws 4 23.21.29.17.27.11 Spring, Rocking Equipment 5 23.21.29.17.29 Slides 4 23.21.29.17.31 Swings 4 23.21.29.17.31.11 Harness Swings 5 23.21.29.17.31.13 Rope Swings 5 23.21.29.17.31.15 Tire Swings 5 23.21.29.17.31.17 Seat Swings 5 23.21.29.17.33 Playground Tunnel 4 23.21.29.17.35 Play Structures 4 23.21.29.19 Recreational Equipment 3 23.21.29.19.11 Ping Pong Equipment 4 23.21.29.19.13 Arcade Machines 4 23.21.29.19.15 Billiards Equipment 4 23.21.29.19.17 Sauna Equipment 4 23.21.29.19.19 Steam Room Equipment 4 23.21.29.19.21 Shooting Range Equipment 4 23.21.29.19.23 Swimming Pool Equipment 4 23.21.29.19.23.11 Diving Boards 5 23.21.29.19.23.13 Starting Blocks 5 23.21.29.19.23.15 Ladders 5 23.21.29.21 Pools 3 23.21.29.21.11 Leisure Whirlpools 4 23.21.29.21.13 Hot Tubs 4 23.21.29.21.15 Swimming Pools 4 23.21.29.21.17 Lap Pools 4 23.21.29.23 Spectator Stands 3 23.21.29.23.11 Fixed Stadium Seating 4 23.21.29.23.13 Telescoping Stands 4 23.21.29.23.15 Bleachers 4 23.21.29.23.15.11 Telescoping Bleachers 5 23.21.29.23.17 Telescoping Chair Platforms 4 23.21.31.00 Fitness and Exercise Equipment 2 23.21.31.11 Exercise Apparatus 3 23.21.31.11.11 Weight Training Exercise Apparatus 4 23.21.31.11.11.11 Multi Station Weight Training Exercise Apparatus 5 23.21.31.13 Exercise Bars 3 23.21.31.13.11 Chinning Bars 4 23.21.31.13.13 Weightlifting Bars 4 23.21.31.15 Exercise Benches 3 23.21.31.15.11 Weightlifting Benches 4 23.21.31.15.11.11 Adjustable Utility Weightlifting Benches 5 23.21.31.15.11.13 Decline Weightlifting Benches 5 23.21.31.15.11.15 Incline Weightlifting Benches 5 23.21.31.15.11.17 Supine Weightlifting Benches 5 23.21.31.17 Exercise Boards 3 23.21.31.17.11 Abdominal Exercise Boards 4 23.21.31.17.11.11 Raised and Bent Leg Abdominal Exercise Boards 5 23.21.31.19 Exercise Machines 3 23.21.31.19.11 Abdominal Exercise Machines 4 23.21.31.19.13 Back Extension Exercise Machines 4 23.21.31.19.15 Biceps Exercise Machines 4 23.21.31.19.17 Chest Exercise Machines 4 23.21.31.19.19 Closed Chain Exercise Machines 4 23.21.31.19.21 Hip Exercise Machines 4 23.21.31.19.21.11 Hip Abduction Exercise Machines 5 23.21.31.19.21.13 Hip Adduction Exercise Machines 5 23.21.31.19.23 Leg Exercise Machines 4 23.21.31.19.23.11 Leg Curl Exercise Machines 5 23.21.31.19.23.13 Leg Extension Exercise Machines 5 23.21.31.19.23.15 Leg Press Exercise Machines 5 23.21.31.19.23.17 Leg Press Squat Exercise Machines 5 23.21.31.19.23.19 Leg Squat Exercise Machines 5 23.21.31.19.25 Neck Exercise Machines 4 23.21.31.19.27 Pullover Exercise Machines 4 23.21.31.19.29 Rotary Shoulder Exercise Machines 4 23.21.31.19.31 Rowing Exercise Machines 4 23.21.31.19.33 Shoulder Exercise Machines 4 23.21.31.19.35 Treadmills 4 23.21.31.19.37 Triceps Exercise Machines 4 23.21.31.19.39 Continuous Passive Motion CPM Exercisers 4 23.21.31.19.41 Ladder Exercisers 4 23.21.31.19.43 Exercise Platforms 4 23.21.31.19.45 Ramp Curb Exercisers 4 23.21.31.19.47 Staircase Exercisers 4 23.21.31.19.49 Upper and Lower Extremities Exercisers 4 23.21.31.19.51 Upper Body Exercisers 4 23.21.31.21 Exercise Floor Mats 3 23.21.31.23 Exercise Pulleys 3 23.21.31.23.11 Triplex Exercise Pulleys 4 23.21.33.00 Industrial and Manufacturing Equipment and Furnishings 2 23.21.33.11 Manufacturing Equipment 3 23.21.33.13 Manufacturing Furniture 3 23.21.33.13.11 Flat Work Surface Furniture 4 23.21.33.13.13 Work Stations 4 23.21.33.15 Shop Equipment 3 23.21.33.17 Shop Furniture 3 23.21.33.17.11 Shop Work Surfaces 4 23.21.33.17.13 Shop Storage Fittings 4 23.21.35.00 Miscellaneous Equipment and Furnishings 2 23.21.35.11 Darkroom Equipment and Furnishings 3 23.21.35.11.11 Darkroom Processing Equipment 4 23.21.35.13 Vending Equipment 3 23.21.35.13.11 Vending Machines 4 23.21.35.15 Ticket Machines 3 23.21.35.17 Change Machines 3 23.21.35.19 Vehicle Service Equipment 3 23.21.35.19.11 Compressed Air Vehicle Service Equipment 4 23.21.35.19.13 Fuel Dispensing Equipment 4 23.21.35.19.15 Vehicle Lubrication Equipment 4 23.21.35.19.17 Tire Changing Equipment 4 23.21.35.19.19 Vehicle Washing Equipment 4 23.21.35.19.21 Vehicle Hoists 4 23.21.35.21 Security and Vault Equipment and Furnishings 3 23.21.35.21.11 Safes 4 23.21.35.21.13 Safe Deposit Boxes 4 23.21.35.21.15 Vault Doors 4 23.21.35.21.17 Day Gates 4 23.21.35.21.19 Anti Bandit Screens 4 23.21.35.21.19.11 Gun Ports 5 23.21.35.21.21 Teller and Service Equipment 4 23.21.35.21.21.11 Automated Banking Systems 5 23.21.35.21.21.13 Money Cart Pass Through 5 23.21.35.21.21.15 Package Transfer Units 5 23.21.35.21.21.17 Service and Teller Window Units 5 23.21.35.21.21.19 Teller Equipment Systems 5 23.21.35.21.21.21 Deal Drawers 5 23.21.35.21.23 Key Security Cabinets 4 23.21.35.21.25 Money Handling Equipment 4 23.21.35.23 Detention Equipment and Furnishings 3 23.21.35.23.11 Detention Enclosures 4 23.21.35.23.13 Detention Furnishings and Specialties 4 23.21.35.23.15 Detention Furniture 4 23.21.35.25 Agricultural Equipment 3 23.21.35.25.11 Milkers 4 23.21.35.25.13 Stock Feeders 4 23.21.35.25.15 Stock Waterers 4 23.21.35.25.17 Waste Clean Up Equipment 4 23.21.37.00 Furnishings, Ornaments, and Decoration 2 23.21.37.11 Soft Furnishings 3 23.21.37.11.11 Rugs 4 23.21.37.11.13 Upholstery 4 23.21.37.11.15 Cushions 4 23.21.37.11.17 Padding 4 23.21.37.11.19 Tablecloths 4 23.21.37.13 Decoration 3 23.21.37.13.11 Commercial Artwork 4 23.21.37.13.11.11 Wall Hangings 5 23.21.37.13.13 Clocks 4 23.21.37.13.15 Mirrors 4 23.21.37.13.17 Interior Ornamental Fountains 4 23.21.37.13.19 Ornamental Screens 4 23.21.37.13.21 Decorative Planters 4 23.21.37.13.23 Decorative Vases 4 23.21.39.00 Commercial Washing and Waste Disposal Equipment 2 23.21.39.11 Commercial Washing Equipment 3 23.21.39.11.11 High Pressure Washing Equipment 4 23.21.39.13 Drain Boards 3 23.21.41.00 Commercial Laundry Equipment 2 23.21.41.11 Commercial Clothes Airers 3 23.21.41.11.11 Commercial Clothes Dryers 4 23.21.41.11.13 Commercial Clothes Stands 4 23.21.41.11.15 Commercial Clothes Lines 4 23.21.41.13 Commercial Combination Laundry Washer Dryers 3 23.21.41.15 Commercial Dry Cleaning Equipment 3 23.21.41.17 Commercial Laundry Dispensers 3 23.21.41.17.11 Commercial Dry Laundry Detergent Dispensers 4 23.21.41.17.13 Commercial Liquid Laundry Detergent Dispensers 4 23.21.41.17.15 Commercial Dryer Sheet Dispensers 4 23.21.41.19 Commercial Dry Cleaning Machines 3 23.21.41.21 Commercial Laundry Extractors 3 23.21.41.23 Commercial Flat Work Ironers 3 23.21.41.23.11 Commercial Electric Flat Work Ironers 4 23.21.41.23.13 Commercial Gas Flat Work Ironers 4 23.21.41.23.15 Commercial Steam Flat Work Ironers 4 23.21.41.25 Commercial Ironing and Pressing Machines 3 23.21.41.27 Commercial Laundry Folding Machines 3 23.21.41.29 Commercial Laundry Conveyors 3 23.21.41.31 Commercial Laundry Dryers 3 23.21.41.31.11 Commercial Electric Laundry Dryers 4 23.21.41.31.13 Commercial Gas Laundry Dryers 4 23.21.41.31.15 Commercial Steam Laundry Dryers 4 23.21.41.33 Commercial Laundry Presses 3 23.21.41.33.11 Commercial Electric Laundry Presses 4 23.21.41.33.13 Commercial Gas Laundry Presses 4 23.21.41.33.15 Commercial Steam Laundry Presses 4 23.21.41.35 Commercial Laundry Spreader Feeders 3 23.21.41.37 Commercial Laundry Steam Tunnels 3 23.21.41.39 Commercial Laundry Tubs 3 23.21.41.41 Commercial Washing Machines 3 23.21.41.41.11 Commercial Front Loading Laundry Washers 4 23.21.41.41.13 Commercial Side Loading Laundry Washers 4 23.21.41.41.15 Commercial Top Loading Laundry Washers 4 23.21.41.41.17 Commercial Tunnel Laundry Washers 4 23.21.43.00 Cleaning Equipment 2 23.21.43.11 Buckets 3 23.21.43.11.11 Mop Buckets 4 23.21.43.11.13 Waste Paper Baskets 4 23.21.43.13 Cleaners 3 23.21.43.13.11 Pressure Cleaners 4 23.21.43.13.13 Steam Cleaners 4 23.21.43.15 Custodial Dispensers 3 23.21.43.15.11 Air Freshener Dispensers 4 23.21.43.15.13 Bathroom Tissue Dispensers 4 23.21.43.15.15 Cleaning Rag Dispensers 4 23.21.43.15.17 Facial Tissue Dispensers 4 23.21.43.15.19 Hand Cleaner Dispensers 4 23.21.43.15.21 Institutional Soap Dispensers 4 23.21.43.15.23 Lotion Dispensers 4 23.21.43.15.25 Paper Towel Dispensers 4 23.21.43.15.27 Sanitary Goods Dispensers 4 23.21.43.15.29 Toilet Accessories Dispensers 4 23.21.43.15.31 Toilet Tissue Dispensers 4 23.21.43.15.33 Urinal Accessories Dispensers 4 23.21.43.17 Duct Cleaning Machines 3 23.21.43.19 Floor Cleaning Equipment 3 23.21.43.19.11 Floor Burnishers 4 23.21.43.19.13 Floor Polishers 4 23.21.43.19.15 Floor Scrapers 4 23.21.43.19.17 Floor Scrubbers 4 23.21.43.19.19 Floor Sweepers 4 23.21.43.19.19.11 Carpet Sweepers 5 23.21.43.19.21 Floor Washing Machines 4 23.21.43.21 Room Cleaning Equipment 3 23.21.43.21.11 Vacuum Cleaning Equipment 4 23.21.43.21.11.11 Vacuum Cleaning Systems 5 23.21.43.21.11.11.11 Centralized Vacuum Cleaning System 6 23.21.43.21.11.13 Vacuum Cleaners 5 23.21.43.21.11.13.11 Heavy Duty Tank Vacuum Cleaners 6 23.21.43.21.11.13.13 Wet Dry Combination Vacuum Cleaners 6 23.21.43.21.11.13.15 Wet Vacuum Cleaners 6 23.21.43.21.13 Floor and Wall Cleaning 4 23.21.43.21.15 Housekeeping Carts 4 23.21.43.23 Sanitary Waste Receptacles 3 23.21.43.23.11 Installed Sanitary Waste Receptacles 4 23.21.43.23.13 Portable Sanitary Waste Receptacles 4 23.21.43.25 Custodial Sinks 3 23.21.43.25.11 Mop Sinks 4 23.21.43.27 Custodial Washers 3 23.21.43.27.11 Trash Can Pedestal Washers 4 23.21.45.00 Historic Preservation Products 2 23.21.45.11 Fine Art 3 23.21.45.11.11 Two Dimensional Art 4 23.21.45.11.11.11 Fine Art Paintings 5 23.21.45.11.11.13 Fine Art Drawings 5 23.21.45.11.11.15 Fine Art Printmaking 5 23.21.45.11.11.15.11 Fine Art Lithography 6 23.21.45.11.11.15.13 Fine Art Intaglio 6 23.21.45.11.11.15.15 Fine Art Prints 6 23.21.45.11.11.17 Fine Art Photography 5 23.21.45.11.11.19 Fine Art Graphic Designs 5 23.21.45.11.11.21 Fine Art Illustrations 5 23.21.45.11.13 Three Dimensional Art 4 23.21.45.11.13.11 Fine Art Sculpture 5 23.21.45.11.13.13 Fine Art Ceramics 5 23.21.45.11.13.13.11 Fine Art Pottery 6 23.21.45.11.13.15 Fine Art Mosaics 5 23.21.45.11.13.15.11 Fine Art Tile 6 23.21.45.11.13.17 Fine Art Glass 5 23.21.45.11.13.17.11 Fine Art Stained Glass 6 23.21.45.11.13.17.13 Fine Art Etched Glass 6 23.21.45.11.13.19 Fine Art Architecture 5 23.21.45.11.13.19.11 Fine Art Decorative Architecture 6 23.21.45.11.13.21 Fine Art Textile 5 23.21.45.11.13.21.11 Fine Art Tapestry 6 23.21.45.11.15 Four Dimensional Art 4 23.21.45.11.15.11 Fine Art Film 5 23.21.45.11.15.13 Fine Art Video 5 23.21.45.13 Historic Documents 3 23.21.45.13.11 Historic Paper Documents 4 23.21.45.13.13 Historic Velum Documents 4 23.21.45.13.15 Historic Parchment Documents 4 23.21.45.15 Historic Architectural Items 3 23.21.45.15.11 Historic Architectural Models 4 23.21.45.15.13 Historic Architectural Constructions 4 23.21.45.15.15 Historic Architectural Designs 4 23.21.45.15.17 Historic Decorative Architectures 4 23.21.47.00 Musical Equipment 2 23.21.47.11 Conductor Equipment 3 23.21.47.11.11 Conductor Podium 4 23.21.47.11.13 Conductor Platform 4 23.21.47.13 Musical Instrument 3 23.21.47.13.11 String Instrument 4 23.21.47.13.11.11 Piano 5 23.23.00.00 Conveying Systems and Material Handling Products 1 23.23.11.00 Vertical Transportation Equipment 2 23.23.11.11 Elevators 3 23.23.11.11.11 Traction Elevators 4 23.23.11.11.11.11 Freight Traction Elevators 5 23.23.11.11.11.13 Passenger Traction Elevators 5 23.23.11.11.11.15 Residential Traction Elevators 5 23.23.11.11.11.17 Service Traction Elevators 5 23.23.11.11.13 Hydraulic Elevators 4 23.23.11.11.13.11 Freight Hydraulic Elevators 5 23.23.11.11.13.13 Passenger Hydraulic Elevators 5 23.23.11.11.13.15 Residential Hydraulic Elevators 5 23.23.11.11.13.17 Service Hydraulic Elevators 5 23.23.11.11.15 Pneumatic Elevators 4 23.23.11.11.15.11 Pneumatic Passenger Elevators 5 23.23.11.11.17 Rack and Pinion Elevators 4 23.23.11.11.19 Elevator Cabs 4 23.23.11.11.21 Elevator Equipment and Controls 4 23.23.11.11.21.11 Elevator Doors 5 23.23.11.11.21.13 Elevator Controls 5 23.23.11.11.23 Elevator Restoration Products 4 23.23.11.13 Escalators 3 23.23.13.00 Lifting Equipment 2 23.23.13.11 Lifts 3 23.23.13.11.11 Boom Lifts 4 23.23.13.11.13 Fork Lifts 4 23.23.13.11.15 Man Lifts 4 23.23.13.11.17 Patient Lifts 4 23.23.13.11.17.11 Installed Patient Lifts 5 23.23.13.11.17.13 Portable Patient Lifts 5 23.23.13.11.19 Platform Lifts 4 23.23.13.11.19.11 Elevating Platform Lifts 5 23.23.13.11.19.13 Inclined Platform Lifts 5 23.23.13.11.19.15 Scissor Platform Lifts 5 23.23.13.11.21 Scaffold Lifts 4 23.23.13.11.23 Stage Screen Lifts 4 23.23.13.11.25 Wheel Chair Lifts 4 23.23.13.11.25.11 Hydraulic Wheel Chair Lifts 5 23.23.13.11.25.11.11 Hydraulic Wheel Chair Rail Lifts 6 23.23.13.11.25.11.13 Hydraulic Wheel Chair Stair Lifts 6 23.23.13.11.25.11.15 Hydraulic Wheel Chair Vertical Lifts 6 23.23.13.11.25.13 Mechanical Wheel Chair Lifts 5 23.23.13.11.25.13.11 Mechanical Wheel Chair Rail Lifts 6 23.23.13.11.25.13.13 Mechanical Wheel Chair Stair Lifts 6 23.23.13.11.25.13.15 Mechanical Wheel Chair Vertical Lifts 6 23.23.15.00 Horizontal Transportation Equipment 2 23.23.15.11 Moving Walks 3 23.23.15.13 People Movers 3 23.23.15.13.11 Monorails 4 23.23.15.13.13 Duorails 4 23.23.15.13.15 Maglevs 4 23.23.15.15 Jetways 3 23.23.15.17 Transportation Gangways 3 23.23.17.00 Materials Handling 2 23.23.17.11 Dumbwaiters 3 23.23.17.11.11 Manual Dumbwaiters 4 23.23.17.11.13 Hydraulic Dumbwaiters 4 23.23.17.11.15 Traction Dumbwaiters 4 23.23.17.13 Material Transport 3 23.23.17.13.11 Automated Document Filing and Retrieval 4 23.23.17.13.13 Automated Guided Vehicles 4 23.23.17.13.13.11 Guided Vehicle Material Handling 5 23.23.17.13.13.13 Track Vehicle Material Handling 5 23.23.17.15 Conveyors 3 23.23.17.15.11 Conveyor Components 4 23.23.17.15.11.11 Conveyor Belts 5 23.23.17.15.11.13 Conveyor Rollers 5 23.23.17.15.13 Belt Conveyors 4 23.23.17.15.15 Bucket Conveyors 4 23.23.17.15.17 Container Conveyors 4 23.23.17.15.19 Hopper and Track Conveyors 4 23.23.17.15.21 Monorail Conveyors 4 23.23.17.15.23 Oscillating Conveyors 4 23.23.17.15.25 Pneumatic Conveyors 4 23.23.17.15.27 Roller Conveyors 4 23.23.17.15.29 Scoop Conveyors 4 23.23.17.15.31 Screw Conveyors 4 23.23.17.15.33 Selective Vertical Conveyors 4 23.23.17.15.35 Postal Conveyors 4 23.23.17.15.37 Baggage Conveying and Dispensing Equipment 4 23.23.17.15.37.11 Baggage Conveyors 5 23.23.17.15.37.13 Baggage Dispensing Units 5 23.23.17.17 Chutes 3 23.23.17.17.11 Coal Chutes 4 23.23.17.17.13 Dry Bulk Materials Chutes 4 23.23.17.17.15 Laundry and Linen Chutes 4 23.23.17.17.17 Package Chutes 4 23.23.17.17.19 Refuse Chutes 4 23.23.17.19 Feeder Equipment 3 23.23.17.19.11 Apron Feeders 4 23.23.17.19.13 Reciprocating Plate Feeders 4 23.23.17.19.15 Rotary Airlock Feeders 4 23.23.17.19.17 Rotary Flow Feeders 4 23.23.17.19.19 Vibratory Feeders 4 23.23.17.21 Pneumatic Tube Systems 3 23.23.17.21.11 Pneumatic Tubes 4 23.23.17.21.13 Pneumatic Tube Controls 4 23.23.17.21.15 Pneumatic Tube Vacuum Boxes 4 23.23.17.21.17 Document Conveying Systems 4 23.23.17.23 Cranes 3 23.23.17.23.11 Hydraulic Cranes 4 23.23.17.23.11.11 Hydraulic Bridge Cranes 5 23.23.17.23.11.11.11 Top Running Hydraulic Overhead Cranes 6 23.23.17.23.11.11.13 Underslung Hydraulic Overhead Cranes 6 23.23.17.23.11.13 Hydraulic Gantry Cranes 5 23.23.17.23.11.15 Hydraulic Jib Cranes 5 23.23.17.23.11.17 Hydraulic Mobile Cranes 5 23.23.17.23.11.19 Hydraulic Terrain Cranes 5 23.23.17.23.11.21 Hydraulic Top Running Overhead Cranes 5 23.23.17.23.11.23 Hydraulic Tower Cranes 5 23.23.17.23.11.25 Hydraulic Track Cranes 5 23.23.17.23.11.27 Hydraulic Underslung Overhead Cranes 5 23.23.17.23.11.29 Hydraulic Workshop Cranes 5 23.23.17.23.13 Mechanical Cranes 4 23.23.17.23.13.11 Mechanical Bridge Cranes 5 23.23.17.23.13.11.11 Top Running Mechanical Overhead Cranes 6 23.23.17.23.13.11.13 Underslung Mechanical Overhead Cranes 6 23.23.17.23.13.13 Mechanical Gantry Cranes 5 23.23.17.23.13.15 Mechanical Jib Cranes 5 23.23.17.23.13.17 Mechanical Mobile Cranes 5 23.23.17.23.13.19 Mechanical Terrain Cranes 5 23.23.17.23.13.21 Mechanical Top Running Overhead Cranes 5 23.23.17.23.13.23 Mechanical Tower Cranes 5 23.23.17.23.13.25 Mechanical Track Cranes 5 23.23.17.23.13.27 Mechanical Underslung Overhead Cranes 5 23.23.17.23.13.29 Mechanical Workshop Cranes 5 23.23.17.23.15 Electric Cranes 4 23.23.17.23.15.11 Electric Bridge Cranes 5 23.23.17.23.15.13 Top Running Electric Overhead Cranes 5 23.23.17.23.15.15 Underslung Electric Overhead Cranes 5 23.23.17.23.15.17 Electric Gantry Cranes 5 23.23.17.23.15.19 Electric Jib Cranes 5 23.23.17.23.15.21 Electric Mobile Cranes 5 23.23.17.23.15.23 Electric Terrain Cranes 5 23.23.17.23.15.25 Electric Top Running Overhead Cranes 5 23.23.17.23.15.27 Electric Tower Cranes 5 23.23.17.23.15.29 Electric Track Cranes 5 23.23.17.23.15.31 Electric Underslung Overhead Cranes 5 23.23.17.23.15.33 Electric Workshop Cranes 5 23.23.17.25 Derricks 3 23.23.17.27 Hoists 3 23.23.17.27.11 Fixed Hoists 4 23.23.17.27.11.11 Pneumatic Fixed Hoists 5 23.23.17.27.11.13 Electric Fixed Hoists 5 23.23.17.27.11.15 Manual Fixed Hoists 5 23.23.17.27.11.17 Hydraulic Fixed Hoists 5 23.23.17.27.13 Trolley Hoists 4 23.23.17.27.13.11 Pneumatic Trolley Hoists 5 23.23.17.27.13.13 Electric Trolley Hoists 5 23.23.17.27.13.15 Manual Trolley Hoists 5 23.23.17.27.13.17 Hydraulic Trolley Hoists 5 23.23.19.00 Turntables 2 23.23.19.11 Stage Turntables 3 23.23.19.13 Exhibit and Display Turntables 3 23.23.19.15 Vehicular Turntable 3 23.23.21.00 Parking Systems 2 23.23.21.11 Car Parking Systems 3 23.23.23.00 Loading Dock Equipment 2 23.23.23.11 Loading Dock Bumpers Seals 3 23.23.23.13 Dock Levelers 3 23.23.23.13.11 Powered Dock Levelers 4 23.23.23.13.13 Manual Dock Levelers 4 23.23.23.13.15 Hydraulic Dock Levelers 4 23.23.23.15 Loading Dock Lifts 3 23.23.23.15.11 Powered Loading Dock Lifts 4 23.23.23.15.13 Manual Loading Dock Lifts 4 23.23.23.17 Loading Dock Ramps And Bridges 3 23.23.23.17.11 Portable Loading Dock Ramps 4 23.23.23.17.13 Portable Loading Dock Bridges 4 23.23.23.17.15 Portable Loading Dock Platforms 4 23.23.23.19 Loading Dock Seals 3 23.23.23.19.11 Inflatable Loading Dock Seals 4 23.23.23.19.13 Loading Dock Weather Seals 4 23.23.23.21 Loading Dock Shelters 3 23.23.23.23 Loading Dock Vehicle Restraints 3 23.23.23.23.11 Electric Loading Dock Vehicle Restraints 4 23.23.23.23.13 Electro Magnetic Loading Dock Vehicle Restraints 4 23.23.23.23.15 Hydraulic Loading Dock Vehicle Restraints 4 23.23.25.00 Scaffolding 2 23.23.25.11 Suspended Scaffolding 3 23.23.25.11.11 Beam Suspended Scaffolding 4 23.23.25.11.13 Carriage Suspended Scaffolding 4 23.23.25.11.15 Hook Suspended Scaffolding 4 23.23.25.13 Scaffolding Rope Climbers 3 23.23.25.13.11 Scaffolding Manual Rope Climbers 4 23.23.25.13.13 Scaffolding Powered Rope Climbers 4 23.23.25.15 Scaffolding Telescoping Platforms 3 23.23.25.15.11 Electric and Battery Scaffolding Telescoping Platforms 4 23.23.25.15.13 Pneumatic Scaffolding Telescoping Platforms 4 23.23.25.17 Powered Scaffolding 3 23.25.00.00 Medical and Laboratory Equipment 1 23.25.11.00 Anesthesiology and Respiratory Products 2 23.25.11.11 Anesthesiology Furnishings 3 23.25.11.13 Anesthesiology Equipment 3 23.25.11.13.11 Anesthesia Carts 4 23.25.11.13.13 Anesthesia Gas Equipment 4 23.25.11.13.15 Anesthesia Absorber Units 4 23.25.11.13.17 Anesthesia Temperature Control Units 4 23.25.11.13.19 Anesthesia Intrathecal Pumps 4 23.25.11.13.21 Anesthesia Equipment Calibrators 4 23.25.11.13.23 Anesthesia Inhalation Analgesia Units 4 23.25.11.13.23.11 Anesthesia Inhalation Analgesia Central Gases and Vacuum Units 5 23.25.11.13.23.13 Anesthesia Inhalation Analgesia Central Vacuum Only Units 5 23.25.11.13.25 Respiratory Monitoring Products 4 23.25.11.13.25.11 Apnea Monitors 5 23.25.11.13.25.13 Arterial Blood Gas Monitors 5 23.25.11.13.25.15 Carbon Dioxide End Tidal Monitors 5 23.25.11.13.25.17 Esophageal Motility Recording Units 5 23.25.11.13.25.19 Esophageal Stethoscopes 5 23.25.11.13.25.21 Oxygen Analyzers 5 23.25.11.13.25.23 Oxygen Monitors 5 23.25.11.13.25.25 Respiratory Monitoring Kits 5 23.25.11.13.27 Pulmonary Function Products 4 23.25.11.13.27.11 Bedside Pulmonary Function Screeners 5 23.25.11.13.27.13 Body Plethysmographs 5 23.25.11.13.27.15 Pneumotachs 5 23.25.11.13.27.15.11 Lilly Pneumotachs 6 23.25.11.13.27.15.13 Fleisch Pneumotachs 6 23.25.11.13.27.17 Pulmonary Calibration Devices 5 23.25.11.13.27.19 Pulmonary Function Calculators 5 23.25.11.13.27.21 Pulmonary Function With Computer Analyzers 5 23.25.11.13.27.23 Pulmonary Gas Analyzers 5 23.25.11.13.27.25 Pulmonary Gas Monitors 5 23.25.11.13.27.27 Pulmonary Peak Flowmeters 5 23.25.11.13.27.29 Pulmonary Pressure Monitors 5 23.25.11.13.27.31 Pulmonary Ventilation Monitors 5 23.25.11.13.27.33 Respiratory Temperature Monitors 5 23.25.11.13.27.35 Sleep Study Monitors 5 23.25.11.13.27.37 Spirometers 5 23.25.11.13.27.37.11 Diagnostic Spirometers 6 23.25.11.13.27.37.13 Monitoring Spirometers 6 23.25.11.13.27.37.15 Therapeutic Spirometers 6 23.25.11.13.29 Oxygen Delivery Products 4 23.25.11.13.29.11 Oxygen Concentrators 5 23.25.11.13.29.13 Oxygen Air Blenders 5 23.25.11.13.29.15 Oxygen Timers 5 23.25.11.13.29.17 Oxygen Compressors 5 23.25.11.13.29.19 Medical Oxygen Head Hoods 5 23.25.11.13.29.21 Medical Oxygen Aerosol Tents 5 23.25.11.13.29.23 Medical Hyperbaric Chambers 5 23.25.11.13.29.25 Medical Inhalators 5 23.25.11.13.29.27 Oxygen Therapy Delivery Equipment 5 23.25.11.13.29.29 Medical Oxygen Insufflators 5 23.25.11.13.29.31 Liquid Oxygen Converters 5 23.25.11.13.31 Airway Management Products 4 23.25.11.13.31.11 Airway Pressure Gages 5 23.25.11.13.31.13 Pharyngometers 5 23.25.11.13.33 Intubation Products 4 23.25.11.13.33.11 Laryngoscopes 5 23.25.11.13.33.13 Intubation Benders 5 23.25.11.13.33.15 Intubation Gauges 5 23.25.11.13.33.17 Carbon Dioxide Patient Detectors 5 23.25.11.13.33.19 Intubation Suction Pumps 5 23.25.11.13.35 Negative Pressure Ventilators 4 23.25.11.13.35.11 Iron Lungs 5 23.25.11.13.35.13 Chest Cuirass Products 5 23.25.11.13.37 Positive Pressure Ventilators 4 23.25.11.13.37.11 Intermittent Positive Pressure Breathing Ventilator Units 5 23.25.11.13.37.13 Non Invasive Continuous Positive Air Pressure Ventilator Units 5 23.25.11.13.37.15 Non Invasive Bi Level Ventilator Units 5 23.25.11.13.37.17 Transport Ventilators 5 23.25.11.13.37.19 Adult Intensive Care Ventilators 5 23.25.11.13.37.21 High Frequency Ventilators 5 23.25.11.13.37.23 Home Care Ventilators 5 23.25.11.13.37.25 Positive End Expiratory Pressure Ventilator Valves 5 23.25.11.13.37.27 Ventilator Water Traps 5 23.25.11.13.37.29 Ventilator Gas Sampling Ports 5 23.25.11.13.37.31 Ventilator Heat Exchangers 5 23.25.11.13.37.33 Ventilator Moisture Exchangers 5 23.25.11.13.39 Resuscitation Products 4 23.25.11.13.39.11 Manual Resuscitators 5 23.25.11.13.39.13 Pneumatic Resuscitators 5 23.25.11.13.39.15 Electro Mechanical Resuscitators 5 23.25.11.13.41 Lung Fluid Products 4 23.25.11.13.41.11 Pleural Cavity Drainage Units 5 23.25.11.15 Anesthesiology Prefabricated Structures 3 23.25.11.15.11 Anesthesiology Gas Columns 4 23.25.13.00 Audiology Products 2 23.25.13.11 Audiology Equipment 3 23.25.13.11.11 Audiometers 4 23.25.13.11.11.11 Diagnostic Audiometers 5 23.25.13.11.11.13 Group Screening Audiometers 5 23.25.13.11.11.15 Middle Ear Impedance Diagnostic Audiometers 5 23.25.13.11.13 Audiometric Bone Vibrators 4 23.25.13.11.15 Middle Ear Analyzers 4 23.25.13.11.17 Auditory Function Screening Units 4 23.25.13.11.19 Auditory Test Graphic Recorders 4 23.25.13.11.21 Auditory Analyzers 4 23.25.13.11.21.11 Evoked Potential Auditory Analyzers 5 23.25.13.11.23 Ear Fenestrometers 4 23.25.13.11.25 Electrocochleographs 4 23.25.13.11.27 Hearing Aides 4 23.25.13.11.29 Hearing Aid Analyzers 4 23.25.13.11.31 Tinnitus Analyzers 4 23.25.13.11.33 Toynbee Diagnostic Tubes 4 23.25.13.11.35 Tympanometers 4 23.25.13.13 Audiology Prefabricated Structures 3 23.25.13.13.11 Audio Booths 4 23.25.13.13.13 Double Wall Audio Booths 4 23.25.13.13.13.11 Definitive Test Double Wall Audio Booths 5 23.25.13.13.15 Single Wall Audio Booths 4 23.25.13.13.17 Acoustic Hearing Test Chambers 4 23.25.15.00 Autopsy and Postmortem Products 2 23.25.15.11 Autopsy and Postmortem Furnishings 3 23.25.15.11.11 Postmortem Refrigerators and Freezers 4 23.25.15.11.11.11 Cadaver Cabinet Refrigerators 5 23.25.15.11.11.13 Cadaver Freezers 5 23.25.15.11.11.15 Cadaver Refrigerated Rooms 5 23.25.15.11.11.17 Cadaver Refrigerators 5 23.25.15.11.11.19 Cadaver Walk In Refrigerators 5 23.25.15.11.13 Autopsy Tables 4 23.25.15.11.13.11 Autopsy Body Boards 5 23.25.15.11.13.13 Autopsy Dissecting Tank Tables 5 23.25.15.11.13.15 Autopsy Head Rests 5 23.25.15.11.13.17 Autopsy Sinks 5 23.25.15.11.13.19 Mobile Autopsy Tables 5 23.25.15.11.13.21 Stationary Autopsy Tables 5 23.25.15.11.15 Embalming Sinks 4 23.25.15.13 Autopsy and Postmortem Equipment 3 23.25.15.13.11 Cadaver Lifts 4 23.25.15.13.11.11 Cadaver Electric Lifts 5 23.25.15.13.11.13 Cadaver Hydraulic Lifts 5 23.25.15.13.11.15 Cadaver Scissor Lift Trolleys 5 23.25.15.13.13 Autopsy Equipment 4 23.25.15.13.13.11 Autopsy Fluid Collection Vacuum Aspirators 5 23.25.15.13.13.13 Autopsy Hanging Scales 5 23.25.15.13.13.15 Autopsy Saws 5 23.25.15.13.13.17 Bone Dust Collectors 5 23.25.15.13.15 Cadaver Transport And Storage Products 4 23.25.15.13.15.11 Autopsy Carts 5 23.25.15.13.15.13 Body Transport Containers 5 23.25.15.13.15.15 Cadaver Carriers 5 23.25.15.13.15.17 Cadaver Lifter Or Transfer Devices 5 23.25.15.13.15.19 Cadaver Storage Cabinets 5 23.25.15.13.15.21 Cadaver Storage Racks 5 23.25.15.13.15.23 Cadaver Trays 5 23.25.15.15 Autopsy and Postmortem Prefabricated Structures 3 23.25.15.15.11 Autopsy Workstations 4 23.25.15.15.11.11 Autopsy Grossing Workstations 5 23.25.15.15.11.13 Embalming Workstations 5 23.25.15.15.11.15 Autopsy Down Draft Workstations 5 23.25.15.17 Autopsy and Postmortem Devices 3 23.25.17.00 Dental Products 2 23.25.17.11 Dental Furnishings 3 23.25.17.11.11 Dental Cabinets 4 23.25.17.11.11.11 Mobile Dental Cabinets 5 23.25.17.11.11.13 Dental Operating Stool 5 23.25.17.11.13 Dental Examination Chairs 4 23.25.17.11.15 Dental Stools 4 23.25.17.11.17 Dental Cabinets 4 23.25.17.11.19 Dental Tables 4 23.25.17.11.21 Dental Combination Furniture Sets 4 23.25.17.11.23 Dental Impression Water Baths 4 23.25.17.11.25 Dental Lighting Products 4 23.25.17.11.25.11 Dental Fiber Optic Lights 5 23.25.17.11.25.13 Dental Operating Illumination Sets 5 23.25.17.11.25.15 Dental Operating Light Tripods 5 23.25.17.11.25.17 General Dental Lights 5 23.25.17.13 Dental Equipment 3 23.25.17.13.11 Dental Furnaces 4 23.25.17.13.11.11 Dental Burnout Laboratory Furnaces 5 23.25.17.13.11.13 Porcelain Glazing Laboratory Furnaces 5 23.25.17.13.11.15 Vacuum Porcelain Furnaces 5 23.25.17.13.13 Dental Specialized Hoods 4 23.25.17.13.13.11 Dental Acrylic Floor Standing Fume Hoods 5 23.25.17.13.13.13 Dental Fishmouth Hoods 5 23.25.17.13.13.15 Dental Splash Hoods 5 23.25.17.13.13.17 Dental Splash Hoods with Shield 5 23.25.17.13.15 Dental Procedure Products 4 23.25.17.13.15.01 Calcium Hydroxide Placement Tools 5 23.25.17.13.15.03 Composite Placement Tools 5 23.25.17.13.15.05 Crown Or Bridge Removers 5 23.25.17.13.15.07 Dental Amalgam Carvers 5 23.25.17.13.15.09 Dental Amalgamator 5 23.25.17.13.15.11 Dental Anesthesia Sets 5 23.25.17.13.15.13 Dental Bur Holders 5 23.25.17.13.15.15 Dental Burnishers 5 23.25.17.13.15.17 Dental Burs 5 23.25.17.13.15.19 Dental Calipers 5 23.25.17.13.15.21 Dental Cryosurgical Units 5 23.25.17.13.15.23 Dental Dehydrators 5 23.25.17.13.15.25 Dental Depth Gauges 5 23.25.17.13.15.27 Dental Drills 5 23.25.17.13.15.29 Dental Elevators 5 23.25.17.13.15.31 Dental Excavators 5 23.25.17.13.15.33 Dental Expanders 5 23.25.17.13.15.35 Dental Filler Contouring Instruments 5 23.25.17.13.15.37 Dental Fracture Detecting Tools 5 23.25.17.13.15.39 Dental Gages 5 23.25.17.13.15.41 Dental Guides 5 23.25.17.13.15.43 Dental Heat Carriers 5 23.25.17.13.15.45 Dental Hygiene Instruments 5 23.25.17.13.15.47 Dental Instrument Cassettes 5 23.25.17.13.15.49 Dental Instrument Sharpening Equipment 5 23.25.17.13.15.51 Dental Instrument Trays 5 23.25.17.13.15.53 Dental Instruments Mats 5 23.25.17.13.15.55 Dental Lasers 5 23.25.17.13.15.57 Dental Mallets 5 23.25.17.13.15.59 Dental Mixing Slabs 5 23.25.17.13.15.61 Dental Nippers 5 23.25.17.13.15.63 Dental Operative Brushes 5 23.25.17.13.15.65 Dental Oral Suction Devices 5 23.25.17.13.15.67 Dental Pin Benders 5 23.25.17.13.15.69 Dental Pin Drivers 5 23.25.17.13.15.71 Dental Placement Instruments 5 23.25.17.13.15.73 Dental Pulp Testers 5 23.25.17.13.15.75 Dental Reamers 5 23.25.17.13.15.77 Dental Retraction Cord Packing Instruments 5 23.25.17.13.15.79 Dental Retractors 5 23.25.17.13.15.81 Dental Saliva Ejectors 5 23.25.17.13.15.83 Dental Scalers 5 23.25.17.13.15.85 Dental Spreaders 5 23.25.17.13.15.87 Dental Tooth Separators 5 23.25.17.13.15.89 Dental Vitality Testers 5 23.25.17.13.15.91 Dentoscopes 5 23.25.17.13.15.93 Intraoral Lights 5 23.25.17.13.15.95 Pneumatic Dental Chisels 5 23.25.17.13.15.97 Temporomandibular Joint (TMJ) Dental Videoscopes 5 23.25.17.13.17 Dental Tanks 4 23.25.17.13.17.11 Dental Blow Out Tanks 5 23.25.17.13.17.13 Dental Curing Tanks 5 23.25.17.13.17.15 Dental Washout Blow Out Tanks 5 23.25.17.13.19 Dental Polishing and Grinding Machines 4 23.25.17.13.19.11 Dental Combination Grinding and Polishing Machines 5 23.25.17.13.19.13 Dental Grinding Machines 5 23.25.17.13.19.15 Dental Polishing Machines 5 23.25.17.13.21 Dental Imaging Products 4 23.25.17.13.21.11 Cephalometric Radiographic Fluoroscopic Units 5 23.25.17.13.21.13 Dental Film Processors 5 23.25.17.13.21.15 Dental Radioactive Tracers 5 23.25.17.13.21.17 Dental Radiographic Fluoroscopic Units 5 23.25.17.13.21.17.11 Panographic Cephalo Dental Radiographic Fluoroscopic Units 6 23.25.17.13.21.17.13 Panographic Dental Radiographic Fluoroscopic Units 6 23.25.17.13.21.19 Dental Radiography Film Analyzers 5 23.25.17.13.21.21 Dental Radiology Film Hangers 5 23.25.17.13.21.23 Dental Radiology Film Holders 5 23.25.17.13.21.25 Dental Radiology Film Mounts 5 23.25.17.13.21.27 Dental X Ray Duplicators 5 23.25.17.13.21.29 Dental X Ray Units 5 23.25.17.13.21.31 Dental X Ray Viewers 5 23.25.17.13.23 Dental Sterilization Products 4 23.25.17.13.23.11 Dental Steam Cleaners 5 23.25.17.13.25 Dental Laboratory Products 4 23.25.17.13.25.11 Dental Air Abrasion Units 5 23.25.17.13.25.13 Dental Burners 5 23.25.17.13.25.15 Dental Casting Machines 5 23.25.17.13.25.17 Dental Curing Units 5 23.25.17.13.25.17.11 2 Stage Dental Curing Units 6 23.25.17.13.25.17.13 3 Stage Dental Curing Units 6 23.25.17.13.25.19 Dental Dust Collectors 5 23.25.17.13.25.21 Dental Gold Platers 5 23.25.17.13.25.23 Dental Lathes 5 23.25.17.13.25.25 Dental Model Trimmers 5 23.25.17.13.25.27 Dental Models 5 23.25.17.13.25.29 Dental Plaster Traps 5 23.25.17.13.25.31 Dental Resin Curing Units 5 23.25.17.13.25.31.11 Dental Visible Light Resin Curing Units 6 23.25.17.13.25.33 Dental Resins Processing Units 5 23.25.17.13.25.35 Dental Sandblasters 5 23.25.17.13.25.37 Dental Soldering Machines 5 23.25.17.13.25.39 Dental Torches 5 23.25.17.13.25.41 Dental Vacuum Units 5 23.25.17.13.25.43 Dental Vibrators 5 23.25.17.13.25.45 Dental Waxing Units 5 23.25.17.15 Dental Prefabricated Structures 3 23.25.17.15.11 Dental Lab Workcenters 4 23.25.17.15.11.11 Dental Lab Die Trimming Workcenters 5 23.25.17.15.11.13 Dental Lab Equipment Workcenters 5 23.25.17.15.11.15 Dental Lab Metal Grinding Workcenters 5 23.25.17.15.11.17 Dental Lab Microblasting Workcenters 5 23.25.17.15.11.19 Dental Lab Plaster Workcenters 5 23.25.17.15.11.21 Dental Lab Polishing Workcenters 5 23.25.17.15.11.23 Dental Lab Surveying and Milling Workcenters 5 23.25.19.00 Dermatology Products 2 23.25.19.11 Dermatology Furnishings 3 23.25.19.13 Dermatology Equipment 3 23.25.19.13.11 Phototherapy Products 4 23.25.19.13.11.11 Phototherapy Air Circulators 5 23.25.19.13.11.13 Phototherapy Blankets 5 23.25.19.13.11.15 Phototherapy Light Mats 5 23.25.19.13.11.17 Phototherapy Patient Protection Devices 5 23.25.19.13.11.19 Phototherapy Power Units 5 23.25.19.13.11.21 Phototherapy Warmer Beds 5 23.25.19.15 Dermatology Prefabricated Structures 3 23.25.19.15.11 Ultraviolet Treatment Booths 4 23.25.19.15.13 Hand and Foot Ultraviolet Treatment Booths 4 23.25.19.17 Dermatology Devices 3 23.25.21.00 Emergency Trauma and Intensive Care Products 2 23.25.21.11 Emergency Trauma and Intensive Furnishings 3 23.25.21.11.11 Catheter Storage Cabinets 4 23.25.21.13 Emergency Trauma and Intensive Equipment 3 23.25.21.13.11 Emergency Carts 4 23.25.21.13.13 Emergency Transportation Products 4 23.25.21.13.13.11 Air Evacuation Stretchers 5 23.25.21.13.13.13 Ambulance Cots 5 23.25.21.13.13.15 Anti Shock Garments 5 23.25.21.13.13.17 Basket Stretchers 5 23.25.21.13.13.19 Scoop Stretchers 5 23.25.21.13.13.21 Spine Boards 5 23.25.21.13.13.23 Water Rescue Tubes 5 23.25.21.13.15 Emergency Airway Management Products 4 23.25.21.13.15.11 Emergency Laryngoscope Kits 5 23.25.21.13.15.13 Emergency Oropharyngeal Airway Devices 5 23.25.21.13.15.15 Emergency Suction Units 5 23.25.21.13.15.17 Emergency Tracheal Tube Kits 5 23.25.21.13.17 Emergency Kits 4 23.25.21.13.17.11 Emergency Dental Kits 5 23.25.21.13.17.13 Emergency First Aid Kits 5 23.25.21.13.17.15 Emergency Fracture Kits 5 23.25.21.13.17.17 Emergency Intravenous IV Kits 5 23.25.21.13.17.19 Emergency Medical First Response Kits 5 23.25.21.13.17.21 Emergency Medical Technician Kits 5 23.25.21.13.17.23 Emergency Obstetrics Kits 5 23.25.21.13.17.25 Emergency Resuscitation Kits 5 23.25.21.13.17.27 Emergency Services Trauma Kits 5 23.25.21.13.17.29 Emergency Ventriculostomy Kits 5 23.25.21.13.19 Emergency Resuscitation Products 4 23.25.21.13.19.11 Diefibrillators 5 23.25.21.13.19.11.11 Acute Care Defibrillators 6 23.25.21.13.19.11.13 Acute Care Defibrillator With Monitors 6 23.25.21.13.19.11.15 Automatic Defibrillators 6 23.25.21.13.19.11.17 Defibrillator with Cardioscopes 6 23.25.21.13.19.11.19 Portable Defibrillators 6 23.25.21.13.19.13 Defibrillator Analyzers 5 23.25.21.13.19.15 Emergency Aspirators 5 23.25.21.13.19.17 Emergency Resuscitators 5 23.25.21.13.19.17.11 Emergency Manual Resuscitators 6 23.25.21.13.19.17.13 Emergency Pulmonary Resuscitators 6 23.25.21.13.19.17.15 Emergency Oxygen Powered Resuscitators 6 23.25.21.13.21 Acute Care Monitoring Units 4 23.25.21.13.21.11 Acute Care Fetal Monitoring Units 5 23.25.21.13.21.13 Acute Care Maternal Monitoring Units 5 23.25.21.13.21.15 Cardiac Output Monitoring Units 5 23.25.21.13.21.17 Intracranial Pressure Monitoring Units 5 23.25.21.13.21.19 Multiparameter Vital Sign Units 5 23.25.21.15 Emergency Trauma and Intensive Prefabricated Structures 3 23.25.21.15.11 Intensive Care Unit Prefabricated Service Columns 4 23.25.21.15.13 Trauma Workcenters 4 23.25.23.00 Endocrinology Products 2 23.25.23.11 Endocrinology Furnishings 3 23.25.23.11.11 Dialysis Chairs 4 23.25.23.11.13 Dialysis Tables 4 23.25.23.13 Endocrinology Equipment 3 23.25.23.13.11 Peritoneal Dialysis Products 4 23.25.23.13.11.11 Continuous Ambulatory Peritoneal Dialysis Transfer Units 5 23.25.23.13.11.13 Dialysis Boxes 5 23.25.23.13.11.15 Pheresis Units 5 23.25.23.13.11.17 Peritoneal Dialysis Units 5 23.25.23.13.11.17.11 Hollow Peritoneal Dialysis Units 6 23.25.23.13.13 Hemodialysis Products 4 23.25.23.13.13.11 Hemodialysis Blood Oxygen Demand Units 5 23.25.23.13.13.13 Hemodialysis Conductivity Meters 5 23.25.23.13.13.15 Hemodialysis Filters 5 23.25.23.13.13.17 Hemodialysis Level Detectors 5 23.25.23.13.13.19 Hemodialysis Pressure Pumps 5 23.25.23.13.13.21 Hemodialysis Reprocessing Units 5 23.25.23.13.13.23 Hemodialysis Tanks 5 23.25.23.13.13.25 Hemodialysis Unit Arterial Pressure Monitors 5 23.25.23.13.13.27 Hemodialysis Unit Blood Pumps 5 23.25.23.13.13.29 Hemodialysis Unit Heparin Infusion Pumps 5 23.25.23.13.13.31 Hemodialysis Unit Single Pass Converters 5 23.25.23.13.13.33 Hemodialysis Unit Stands 5 23.25.23.13.13.35 Hemodialysis Unit Temperature Monitors 5 23.25.23.13.13.37 Hemodialysis Unit Test Equipment 5 23.25.23.13.13.39 Hemodialysis Units 5 23.25.23.13.13.41 Hemodialysis Warming Baths 5 23.25.23.13.15 Continuous Renal Replacement Therapy Products 4 23.25.23.13.15.11 Continuous Arteriovenous Dialysis Units 5 23.25.23.13.15.13 Continuous Arteriovenous Hemofiltration Units 5 23.25.23.13.15.15 Continuous Venovenous Hemodialysis Units 5 23.25.23.13.15.17 Continuous Venovenous Hemofiltration Units 5 23.25.23.13.15.19 Renal Dialysis Cartridge Flushing Units 5 23.25.23.13.15.21 Slow Continuous Ultrafiltration Units 5 23.25.23.15 Endocrinology Prefabricated Structures 3 23.25.25.00 Gastroenterology and Hepatology Products 2 23.25.25.11 Gastroenterology Furnishings 3 23.25.25.11.11 Proctology Examination Tables 4 23.25.25.11.13 Urological Procedure Tables 4 23.25.25.11.13.11 Endoscope Storage Cabinets 5 23.25.25.11.13.13 Endoscope Wall Hangers 5 23.25.25.11.13.15 Endoscopic Procedure Carts 5 23.25.25.13 Gastroenterology Equipment 3 23.25.25.15 Gastroenterology Prefabricated Structures 3 23.25.25.17 Gastroenterology Devices 3 23.25.27.00 General Internal Medicine Products 2 23.25.27.11 General Internal Medicine Furnishings 3 23.25.27.11.11 Intravenous Transport Products 4 23.25.27.11.11.11 Intravenous Equipment Hangers 5 23.25.27.11.11.13 Intravenous Infusion Gravity Systems Mounted Racks 5 23.25.27.11.11.15 Intravenous Infusion Gravity Systems Mounted Tracks 5 23.25.27.11.11.17 Intravenous Line Poles 5 23.25.27.11.11.19 Intravenous Line Stands 5 23.25.27.11.11.21 Intravenous Wheelchair Poles 5 23.25.27.13 General Internal Medicine Equipment 3 23.25.27.13.11 Endoscopy Carts 4 23.25.27.13.11.11 Fiberoptic Endoscopy Carts 5 23.25.27.13.11.11.11 Basic Fiberoptic Endoscopy Carts 6 23.25.27.13.11.11.13 Fiberoptic Endoscopy Carts With Video Accessories 6 23.25.27.13.11.11.15 Fiberoptic Endoscopy Carts With Video Accessories And Information Management 6 23.25.27.13.11.13 Video Endoscopy Carts 5 23.25.27.13.11.13.11 Video Endoscopy Carts CCD Scope And Information Management 6 23.25.27.13.13 Intravenous Pump Products 4 23.25.27.13.13.11 General Use Intravenous Pumps 5 23.25.27.13.13.13 Intravenous Infusion Pump Analyzers 5 23.25.27.13.13.15 Intravenous Infusion Pump Sensors 5 23.25.27.13.13.17 Intravenous Infusion Pump Transducers 5 23.25.27.13.13.19 Intravenous Syringe Pumps 5 23.25.27.13.13.21 Multichannel Intravenous Pumps 5 23.25.27.13.15 Urological Products 4 23.25.27.13.15.11 Cystometry Transducers 5 23.25.27.13.15.13 Urethral Sound Sets 5 23.25.27.13.15.15 Urethral Stone Remover Sets 5 23.25.27.13.15.17 Urodynamic Catheters 5 23.25.27.13.15.19 Urological Percolators 5 23.25.27.13.17 Endoscopes Products 4 23.25.27.13.17.11 Rigid Endoscopes 5 23.25.27.13.17.13 Flexible Endoscopes 5 23.25.27.13.17.15 Cystourethroscopes 5 23.25.27.13.17.17 Resectoscopes 5 23.25.27.13.17.19 Laparoscopes 5 23.25.27.13.17.21 Laparoscopic Telescopes 5 23.25.27.13.17.23 Cystoscopes 5 23.25.27.13.17.25 Endoscopic Sphincterotomes 5 23.25.27.13.17.27 Duodenoscopes 5 23.25.27.13.17.27.11 Combination Duodenoscope and Choledochoscopes 6 23.25.27.13.17.27.13 Therapeutic Duodenoscopes 6 23.25.27.13.17.27.15 Fiberoptic Therapeutic Duodenoscopes 6 23.25.27.13.17.27.17 Video Therapeutic Duodenoscopes 6 23.25.27.13.17.29 Esophagoscopes 5 23.25.27.13.17.31 Endoscopic Equipment Sets 5 23.25.27.13.17.33 Endoscopic Heater Probe Units 5 23.25.27.13.17.35 Endoscopic Imaging Equipment 5 23.25.27.13.17.37 Endoscopic Insufflation Units 5 23.25.27.13.17.39 Endoscopic Distention Units 5 23.25.27.13.17.41 Endoscopic Printers 5 23.25.27.13.17.43 Endoscopic Video Cameras 5 23.25.27.13.17.45 Endoscopic Recorders 5 23.25.27.13.17.47 Enteroscopes 5 23.25.27.13.17.47.11 Therapeutic Fiberoptic Enteroscopes 6 23.25.27.13.17.47.13 Therapeutic Video Enteroscopes 6 23.25.27.13.19 Gastroscope Products 4 23.25.27.13.19.11 Therapeutic Fiberoptic Gastroscopes 5 23.25.27.13.19.13 Therapeutic Video Gastroscopes 5 23.25.27.13.21 Sigmoidoscope Products 4 23.25.27.13.21.11 Therapeutic Sigmoidoscopes 5 23.25.27.13.21.13 Fiberoptic Therapeutic Sigmoidoscopes 5 23.25.27.13.21.15 Video Therapeutic Sigmoidoscopes 5 23.25.27.13.23 Colonoscopy Products 4 23.25.27.13.23.11 Mobile Colonoscope System With Accessories 5 23.25.27.13.23.13 Therapeutic Colonoscopes 5 23.25.27.13.23.13.11 Fiberoptic Therapeutic Colonoscopes 6 23.25.27.13.23.13.13 Video Therapeutic Colonoscopes 6 23.25.27.15 General Internal Medicine Prefabricated Structures 3 23.25.29.00 Therapeutic and Physical Therapy Products 2 23.25.29.11 Therapeutic and Physical Therapy Furnishings 3 23.25.29.11.11 Therapeutic Baths 4 23.25.29.11.11.11 Hydrotherapy Baths 5 23.25.29.11.11.11.11 Body Hydrotherapy Baths 6 23.25.29.11.11.11.13 Burn Hydrotherapy Baths 6 23.25.29.11.11.11.15 Burn Hydrotherapy With Lift Baths 6 23.25.29.11.11.11.17 Hydrotherapy With Elevating Tub Baths 6 23.25.29.11.11.11.19 Sitting Hydrotherapy Baths 6 23.25.29.11.11.13 Therapeutic Refrigerated Circulating Water Baths 5 23.25.29.11.13 Therapeutic Tables 4 23.25.29.11.13.11 Chiropractic Tables 5 23.25.29.11.13.13 Therapeutic Massage Tables 5 23.25.29.11.13.15 Traction Physical Therapy Tables 5 23.25.29.13 Therapeutic and Physical Therapy Equipment 3 23.25.29.13.11 Physical Therapy Traction Equipment 4 23.25.29.13.11.11 Traction Appliances Carts 5 23.25.29.13.13 Therapeutic Exercise Equipment 4 23.25.29.13.13.11 Balance Beams 5 23.25.29.13.13.13 Therapeutic Exercise Balance Boards 5 23.25.29.13.13.15 Therapeutic Exercise Balance Bolsters 5 23.25.29.13.13.17 Therapeutic Exercise Balance Rockers 5 23.25.29.13.13.19 Therapeutic Exercise Climbing Equipment 5 23.25.29.13.13.21 Therapeutic Exercise Continuous Passive Motion CPM Equipment 5 23.25.29.13.13.23 Therapeutic Exercise Skates 5 23.25.29.13.13.25 Therapeutic Exercise Free Weights 5 23.25.29.13.13.27 Therapeutic Lung Exercisers 5 23.25.29.13.13.29 Therapeutic Exercise Mats 5 23.25.29.13.13.31 Therapeutic Exercise Platforms 5 23.25.29.13.13.33 Therapeutic Exercise Pulleys 5 23.25.29.13.13.35 Therapeutic Exercise Resistive Equipment 5 23.25.29.13.13.37 Therapeutic Exercise Skateboards 5 23.25.29.13.13.39 Therapeutic Exercise Therapeutic Balls 5 23.25.29.13.13.41 Therapeutic Exercise Treadmills 5 23.25.29.13.13.43 Therapeutic Exercise Vestibular Motion Equipment 5 23.25.29.13.13.45 Therapeutic Exercise Weight Belts 5 23.25.29.13.13.47 Therapeutic Exercise Weight Machines 5 23.25.29.13.13.49 Therapeutic Exercise Wrist Exercisers 5 23.25.29.13.15 Gait Training Products 4 23.25.29.13.15.11 Gait Training Bars 5 23.25.29.13.15.13 Gait Training Bikes 5 23.25.29.13.15.15 Gait Training Parallel Bars 5 23.25.29.13.15.17 Gait Training Ramps 5 23.25.29.13.15.19 Gait Training Stairs 5 23.25.29.13.15.21 Gait Training Walkers 5 23.25.29.13.17 Electrotherapy Equipment 4 23.25.29.13.17.11 Electrotherapy Combination Units 5 23.25.29.13.17.13 Galvanic Stimulators 5 23.25.29.13.17.15 Faradic Stimulators 5 23.25.29.13.17.17 Neuromuscular Stimulators 5 23.25.29.13.17.17.11 Multi Channel Neuromuscular Stimulators 6 23.25.29.13.17.17.13 interferential Neuromuscular Stimulators 6 23.25.29.13.17.17.15 Portable Neuromuscular Stimulators 6 23.25.29.13.17.19 Therapeutic Short Wave Diathermy Units 5 23.25.29.13.17.21 Transcutaneous Electric Nerve Stimulation Units 5 23.25.29.13.19 Heat Cold Therapy Products 4 23.25.29.13.19.11 Therapeutic Cold Storage Chilling Units 5 23.25.29.13.19.13 Therapeutic Heat Lamps 5 23.25.29.13.19.15 Therapeutic Hydrocollators 5 23.25.29.13.19.17 Therapeutic Combination Heating Cooling Units 5 23.25.29.13.19.19 Therapeutic Cooling Blankets 5 23.25.29.13.19.21 Therapeutic Cooling Drapes 5 23.25.29.13.19.23 Therapeutic Cooling Units 5 23.25.29.13.19.25 Therapeutic Cryo Compression Equipment 5 23.25.29.13.19.27 Therapeutic Heating Blankets 5 23.25.29.13.19.29 Therapeutic Heating Drapes 5 23.25.29.13.19.31 Therapeutic Heating Units 5 23.25.29.13.19.33 Therapeutic Paraffin Baths 5 23.25.29.13.21 Hydrotherapy Products 4 23.25.29.13.21.11 Extremity Hydrotherapy Baths 5 23.25.29.13.21.13 Extremity Hydrotherapy Tanks 5 23.25.29.13.21.15 Full Body Immersion Hydrotherapy Baths 5 23.25.29.13.21.17 Full Body Immersion Hydrotherapy Tanks 5 23.25.29.13.21.19 Hydrotherapy Bath Chairs 5 23.25.29.13.23 Hypothermia and Hyperthermia Units 4 23.25.29.13.23.11 Combination Hyperthermia and Hypothermia Units 5 23.25.29.13.23.13 Hyperthermia Units 5 23.25.29.13.23.15 Hypothermia Units 5 23.25.29.13.23.17 Mobile Combination Hyperthermia and Hypothermia Units 5 23.25.29.13.23.19 Mobile Hyperthermia Units 5 23.25.29.13.23.21 Mobile Hypothermia Units 5 23.25.29.15 Health Exercise and Physical Therapy Prefabricated Structures 3 23.25.29.15.11 Nourishment Stations 4 23.25.31.00 Hematology Products 2 23.25.31.11 Hematology Furnishings 3 23.25.31.11.11 Blood Refrigerators and Freezers 4 23.25.31.11.11.11 Blood Bank Refrigerators 5 23.25.31.11.11.13 Blood Freezers 5 23.25.31.11.11.13.11 Double Compartment Blood Freezers 6 23.25.31.11.11.13.13 Blood Plasma Freezers 6 23.25.31.11.11.15 Dry Tissue Freezers 5 23.25.31.11.11.17 Plasma Storage Freezers 5 23.25.31.11.13 Hematology Baths 4 23.25.31.11.13.11 Serology Water Baths 5 23.25.31.11.13.13 Tissue Processing Water Baths 5 23.25.31.11.15 Hematology Cabinets 4 23.25.31.11.15.11 Paraffin Block Cabinets 5 23.25.31.13 Hematology Equipment 3 23.25.31.13.11 Hematology Analyzers 4 23.25.31.13.11.11 Blood Lead Analyzers 5 23.25.31.13.11.13 BUN Analyzers 5 23.25.31.13.11.13.11 Discrete BUN Analyzers 6 23.25.31.13.11.15 PH Blood Gas Analyzers 5 23.25.31.13.11.17 Blood Typing Centrifuges 5 23.25.31.13.13 Blood And Transfusion Products 4 23.25.31.13.13.11 Blood Conservation Equipment 5 23.25.31.13.13.13 Blood Containers 5 23.25.31.13.13.15 Blood Transfusion Equipment 5 23.25.31.13.13.17 Blood Warming and Transfusion Equipment 5 23.25.31.13.13.19 Blood Warming Equipment 5 23.25.31.13.13.21 Blood Waste Collection Equipment 5 23.25.31.15 Hematology Prefabricated Structures 3 23.25.31.15.11 Blood Bank Workcenters 4 23.25.31.15.13 Hematology Workcenters 4 23.25.33.00 Medical Gas Products 2 23.25.33.11 Medical Air Pressure Control Cabinets 3 23.25.33.13 Medical Gas Alarm Modules 3 23.25.33.15 Medical Gas Cylinder Carts 3 23.25.33.17 Medical Gas Cylinder Stands 3 23.25.33.19 Medical Gas Delivery Columns 3 23.25.33.21 Medical Gas Filtering Equipment 3 23.25.33.23 Medical Gas Manifolds 3 23.25.33.25 Medical Gas Outlets 3 23.25.33.27 Medical Gas Service Tracks 3 23.25.33.29 Medical Gas Shutoff Valves 3 23.25.33.31 Medical Gas Treatment Equipment 3 23.25.33.33 Medical Gas Valve boxes 3 23.25.35.00 Nursing Products 2 23.25.35.11 Nursing Furnishings 3 23.25.35.11.11 Freestanding Nursing Table Bath and Showers 4 23.25.35.13 Nursing Equipment 3 23.25.35.13.11 Nursing Station Telecommunications Equipment 4 23.25.35.13.11.11 Nurse Communication Modules 5 23.25.35.13.11.13 Nurse Intercoms 5 23.25.35.13.11.15 Nurse Room Control Equipment 5 23.25.35.13.11.17 Nurse Room Control Exit Monitors 5 23.25.35.15 Nursing Prefabricated Structures 3 23.25.35.15.11 Nurse Stations 4 23.25.37.00 Obstetrics and Gynecology Products 2 23.25.37.11 Obstetrics and Gynecology Furnishings 3 23.25.37.11.11 Obstetrics and Gynecology Beds 4 23.25.37.11.11.11 Birthing Beds 5 23.25.37.11.11.13 Electric Birthing Beds 5 23.25.37.11.13 Obstetrics and Gynecology Tables 4 23.25.37.11.13.11 Beast Biopsy Tables 5 23.25.37.11.13.13 Gynecological Exam Tables 5 23.25.37.11.13.15 Obstetrical Examination Tables 5 23.25.37.13 Obstetrics and Gynecology Equipment 3 23.25.37.13.11 Obstetrics and Gynecology Carts 4 23.25.37.13.11.11 Fetal Monitoring Carts 5 23.25.37.13.13 Breast Biopsy Products 4 23.25.37.13.13.11 Minimally Invasive Breast Biopsy Premium Loading Units 5 23.25.37.13.13.13 Minimally Invasive Breast Biopsy Vacuum Units 5 23.25.37.15 Obstetrics and Gynecology Prefabricated Structures 3 23.25.39.00 Ophthalmology Products 2 23.25.39.11 Ophthalmology Furnishings 3 23.25.39.11.11 Ophthalmology Tables 4 23.25.39.11.11.11 Ophthalmologic Instrument Tables 5 23.25.39.11.13 Ophthalmology Cabinets 4 23.25.39.11.13.11 Lens Measuring Instrument Cabinets 5 23.25.39.13 Ophthalmology Equipment 3 23.25.39.13.11 Ophthalmic Diagnostic Exam Products 4 23.25.39.13.11.11 Autorefractors 5 23.25.39.13.11.13 Binocular Vision Test Sets 5 23.25.39.13.11.15 Chart Projectors 5 23.25.39.13.11.17 Color Perception Testing Lanterns 5 23.25.39.13.11.19 Combination Refractor Keratometers 5 23.25.39.13.11.21 Contact Lens Gonioscope 5 23.25.39.13.11.23 Corneal Topographers 5 23.25.39.13.11.25 Corneal Topography Units 5 23.25.39.13.11.27 Depth Perception Units 5 23.25.39.13.11.29 Electronystagmographs 5 23.25.39.13.11.31 Electroretinogram Systems 5 23.25.39.13.11.33 Exophthalmometers 5 23.25.39.13.11.35 Eye Occluders 5 23.25.39.13.11.37 Keratometer Ophthalmometers 5 23.25.39.13.11.39 Keratoscopes 5 23.25.39.13.11.41 Ophthalmic Colorimeters 5 23.25.39.13.11.43 Ophthalmic Distometers 5 23.25.39.13.11.45 Ophthalmic Drums 5 23.25.39.13.11.47 Ophthalmic Euthyscopes 5 23.25.39.13.11.49 Ophthalmic Eye Test Lenses 5 23.25.39.13.11.51 Ophthalmic Instrument Pads 5 23.25.39.13.11.53 Ophthalmic Instrument Tables 5 23.25.39.13.11.55 Ophthalmic Lens Holders 5 23.25.39.13.11.57 Ophthalmic Lensometers 5 23.25.39.13.11.57.11 Ophthalmic Soft Contract Lensometers 6 23.25.39.13.11.59 Ophthalmic Perimeters 5 23.25.39.13.11.61 Ophthalmic Photometers 5 23.25.39.13.11.63 Ophthalmic Prisms 5 23.25.39.13.11.65 Ophthalmic Retinoscope Accessories 5 23.25.39.13.11.67 Ophthalmic Retinoscopes 5 23.25.39.13.11.69 Ophthalmic Slit Lamps 5 23.25.39.13.11.71 Ophthalmic Spectrophotometers 5 23.25.39.13.11.73 Ophthalmic Speculas 5 23.25.39.13.11.75 Ophthalmic Tonometers 5 23.25.39.13.11.75.11 Ophthalmic Applanation Tonometers 6 23.25.39.13.11.75.13 Ophthalmic Noncontact Tonometers 6 23.25.39.13.11.77 Ophthalmic Transilluminators 5 23.25.39.13.11.79 Ophthalmic Visual Field Plotters 5 23.25.39.13.11.81 Ophthalmic Visual Function Analyzers 5 23.25.39.13.11.83 Ophthalmic Visuometers 5 23.25.39.13.11.85 Ophthalmodynamometers 5 23.25.39.13.11.87 Ophthalmometers 5 23.25.39.13.11.89 Opthalmometer Base Plates 5 23.25.39.13.11.91 Pachymeters 5 23.25.39.13.11.91.11 Ultrasound Pachymeters 6 23.25.39.13.11.91.13 Corneal Ultrasound Pachymeters 6 23.25.39.13.11.93 Phoropter Units 5 23.25.39.13.11.95 Pseudoisochromatic Plate Sets 5 23.25.39.13.11.97 Tachistoscopes 5 23.25.39.13.11.99 Tangent Screens 5 23.25.39.13.11.101 Viewing Stands For Vision Acuity Testing 5 23.25.39.13.11.103 Vision Testing Stereoscopes 5 23.25.39.13.13 Ophthalmic Equipment 4 23.25.39.13.13.11 Lens Edging Machines 5 23.25.39.13.13.11.11 Lens Edging Automatic Beveling Machines 6 23.25.39.13.13.11.13 Lens Edging Automatic Machines 6 23.25.39.13.13.13 Ophthalmic Lasers 5 23.25.39.13.13.13.11 Dual Fiber Photocoagulation Ophthalmic Lasers 6 23.25.39.13.13.13.13 Ophthalmic Laser With Ophthalmoscopes 6 23.25.39.13.13.13.15 Ophthalmic Laser With Slit Lamps 6 23.25.39.13.13.13.17 Semiconductor Diode Ophthalmic Lasers 6 23.25.39.13.13.15 Phacofragmentation (Cusa) Units 5 23.25.39.13.15 Obstetrical And Gynecological Kits 4 23.25.39.13.15.11 Amniocentesis Kits 5 23.25.39.13.15.13 Obstetrical Extraction Units 5 23.25.39.13.15.15 Gynecology Drainage Kits 5 23.25.39.15 Ophthalmology Prefabricated Structures 3 23.25.41.00 Orthopedics Products 2 23.25.41.11 Orthopedics Furnishings 3 23.25.41.11.11 Orthopedics Tables 4 23.25.41.11.11.11 Medical Casting Tables 5 23.25.41.11.11.13 Orthopedic Operating Tables 5 23.25.41.11.11.15 Orthopedic Fracture Operating Tables 5 23.25.41.11.13 Orthopedics Sinks 4 23.25.41.11.13.11 Plaster Sinks 5 23.25.41.13 Orthopedics Equipment 3 23.25.41.13.11 Orthopedics Carts 4 23.25.41.13.11.11 Plaster Carts 5 23.25.41.15 Orthopedic And Prosthetic And Sports Medicine Products 3 23.25.41.15.11 Casting Equipment And Products 4 23.25.41.15.11.11 Broken Arm Casting Machines 5 23.25.41.15.11.13 Cast Carts 5 23.25.41.15.11.15 Cast Cutters 5 23.25.41.15.11.17 Cast Impression Trays 5 23.25.41.15.11.19 Cast Saws 5 23.25.41.15.11.21 Cast Stands 5 23.25.41.15.11.23 Cast Vacuum Units 5 23.25.41.15.11.25 Casting Induction Machines 5 23.25.41.15.11.27 Casting Machine Guards 5 23.25.41.15.11.29 Chrome Cobalt Casting Machines 5 23.25.41.15.13 Orthopedic Traction Products 4 23.25.41.15.13.11 Mobile Traction Carts 5 23.25.41.15.13.13 Orthopedic Traction Weights 5 23.25.41.15.13.15 Orthopedic Upper Limb Appliances 5 23.25.41.17 Orthopedics Prefabricated Structures 3 23.25.43.00 Otolaryngology Products 2 23.25.43.11 Otolaryngology Furnishings 3 23.25.43.13 Otolaryngology Equipment 3 23.25.43.13.11 Nasal Equipment 4 23.25.43.13.11.11 Nasal Bleeding Control Devices 5 23.25.43.13.11.13 Nasal Flowmeters 5 23.25.43.13.11.15 Nasal Irrigation Devices 5 23.25.43.13.11.17 Olfactometers 5 23.25.43.13.11.19 Rhinoanemometers 5 23.25.43.13.13 Taste Equipment 4 23.25.43.13.13.11 Gustometers 5 23.25.43.13.15 Ear Equipment 4 23.25.43.13.15.11 Earmold Equipment 5 23.25.43.15 Otolaryngology Prefabricated Structures 3 23.25.45.00 Patient Care Products 2 23.25.45.11 Patient Care Furnishings 3 23.25.45.11.11 Patient Beds 4 23.25.45.11.11.11 Electric Patient Beds 5 23.25.45.11.11.13 Electric Special Care Patient Beds 5 23.25.45.11.11.15 Hospital Bedside Rails 5 23.25.45.11.11.17 Hospital Head Boards 5 23.25.45.11.13 Medical Mattresses 4 23.25.45.11.13.11 Hospital Bed Mattresses 5 23.25.45.11.13.13 Medical Pressure Reduction Mattresses 5 23.25.45.11.15 Patient Baths 4 23.25.45.11.17 Patient Showers 4 23.25.45.11.17.11 Free Standing Patient Showers 5 23.25.45.11.17.13 Patient’s Combination Toilets 5 23.25.45.11.19 Patient Seating 4 23.25.45.11.19.11 Hospital Recliners 5 23.25.45.11.19.13 Patient Chairs 5 23.25.45.11.21 Physically Challenged Transport Equipment 4 23.25.45.11.21.11 Physically Challenged Multifunctional Mobility Devices 5 23.25.45.11.21.13 Physically Challenged Positioning Devices 5 23.25.45.11.21.15 Physically Challenged Standing Aids 5 23.25.45.11.21.17 Physically Challenged Whole Body Sliding Devices 5 23.25.45.11.21.19 Physically Challenged Whole Body Turning Devices 5 23.25.45.11.21.21 Rollators 5 23.25.45.11.21.23 Walkers 5 23.25.45.11.23 Physically Challenged Baths and Showers 4 23.25.45.11.23.11 Physically Challenged Bath Chairs 5 23.25.45.11.23.13 Physically Challenged Bath Lifts 5 23.25.45.11.23.15 Physically Challenged Bath Safety Rails 5 23.25.45.11.23.17 Physically Challenged Bathboards 5 23.25.45.11.23.19 Physically Challenged Shower Seats 5 23.25.45.11.23.21 Physically Challenged Showers 5 23.25.45.11.23.23 Physically Challenged Sitz Baths 5 23.25.45.11.25 Physically Challenged Baths and Showers 4 23.25.45.11.25.11 Physically Challenged Toilet Arm Supports 5 23.25.45.11.25.13 Physically Challenged Toilet Frames 5 23.25.45.11.25.15 Physically Challenged Toilet Grab Bars 5 23.25.45.11.25.17 Physically Challenged Toilet Seat Lifters 5 23.25.45.11.25.19 Physically Challenged Toilet Seats 5 23.25.45.11.25.21 Physically Challenged Toilets 5 23.25.45.13 Patient Care Equipment 3 23.25.45.15 Patient Care Prefabricated Structures 3 23.25.47.00 Patient Clinical Diagnostic Products 2 23.25.47.11 Patient Clinical Diagnostic Furnishings 3 23.25.47.11.11 Privacy Screens 4 23.25.47.11.11.11 Patient Cubicle Curtain Tracks 5 23.25.47.11.11.13 Patient Cubicle Curtains 5 23.25.47.11.11.15 Patient Cubicle Screens 5 23.25.47.11.13 Patient Clinical Diagnostic Tables 4 23.25.47.11.13.11 Examination Treatment Tables 5 23.25.47.11.13.13 Medical Procedure Tables 5 23.25.47.11.13.15 Minor Surgical Tables 5 23.25.47.11.13.17 Treatment Tables 5 23.25.47.11.15 Patient Clinical Diagnostic Sinks 4 23.25.47.11.15.11 Clinic Sinks 5 23.25.47.11.15.13 Clinic Scrub Sinks 5 23.25.47.11.17 Patient Clinical Diagnostic Storage Products 4 23.25.47.11.17.11 Patient Records Shelving Units 5 23.25.47.11.19 Patient Clinical Diagnostic Seating 4 23.25.47.11.19.11 Clinical Examination Chairs 5 23.25.47.11.19.13 Physician Stools 5 23.25.47.11.21 Patient Clinical Diagnostic Cabinets 4 23.25.47.11.21.11 Exam Room Cabinets 5 23.25.47.11.21.13 Pass Through Specimen Cabinets 5 23.25.47.11.21.15 Treatment Cabinets 5 23.25.47.11.23 Patient Clinical Diagnostic Monitor Arms 4 23.25.47.11.23.11 Medical Facility Monitor Ceiling Arms 5 23.25.47.11.23.13 Medical Facility Monitor Wall Arms 5 23.25.47.13 Patient Clinical Diagnostic Equipment 3 23.25.47.13.11 Blood Pressure Units And Related Products 4 23.25.47.13.11.11 Aneroid Blood Pressure Units 5 23.25.47.13.11.13 Aneroid Sphygmomanometers 5 23.25.47.13.11.15 Blood Pressure Recording Units 5 23.25.47.13.11.17 Electronic Blood Pressure Units 5 23.25.47.13.11.19 Mercury Blood Pressure Units 5 23.25.47.13.11.21 Sphygmomanometers 5 23.25.47.13.13 Electrocardiography EKG Units And Related Products 4 23.25.47.13.13.11 Electrocardiography Units 5 23.25.47.13.13.11.11 Multiple Channel Electrocardiograph Units 6 23.25.47.13.13.11.13 Single Channel Electrocardiograph Units 6 23.25.47.13.13.13 Electrocardiography Cable Lead Testers 5 23.25.47.13.13.15 Electrocardiography Graphic Recorders 5 23.25.47.13.13.17 Electrocardiography Monitors 5 23.25.47.13.13.19 Electrocardiography Unit Analyzers 5 23.25.47.13.13.21 Long Term Continuous Electrocardiography Monitoring Units 5 23.25.47.13.13.23 Electrocardiography Transmitters 5 23.25.47.13.15 Pulse Dosimeters Products 4 23.25.47.13.15.11 Co Oximeters 5 23.25.47.13.15.13 Pulse Oximeter Cables 5 23.25.47.13.15.15 Pulse Oximeter Probes 5 23.25.47.13.15.17 Pulse Oximeter Sensors 5 23.25.47.13.15.19 Pulse Oximeter Units 5 23.25.47.13.17 Medical Exam Diagnostic Products 4 23.25.47.13.17.11 Angioscopes 5 23.25.47.13.17.13 Anoscopes 5 23.25.47.13.17.15 Binocular Ophthalmoscopes 5 23.25.47.13.17.15.11 Direct Binocular Ophthalmoscopes 6 23.25.47.13.17.15.13 Indirect Binocular Ophthalmoscopes 6 23.25.47.13.17.17 Body Composition Analyzer 5 23.25.47.13.17.19 Bronchoscopes 5 23.25.47.13.17.21 Colposcopes 5 23.25.47.13.17.23 Dermatoscopes 5 23.25.47.13.17.25 Electroencephalograph EEG 5 23.25.47.13.17.27 Electromyographs 5 23.25.47.13.17.29 Electronic Stethoscopes 5 23.25.47.13.17.31 Fiberoptic Bronchoscopes 5 23.25.47.13.17.31.11 Adult Fiberoptic Bronchoscopes 6 23.25.47.13.17.31.13 Adult Large Channel Fiberoptic Bronchoscopes 6 23.25.47.13.17.31.15 Adult Slim Casing Fiberoptic Bronchoscopes 6 23.25.47.13.17.31.17 Examination Fiberoptic Bronchoscopes 6 23.25.47.13.17.31.19 Pediatric Fiberoptic Bronchoscopes 6 23.25.47.13.17.31.21 Therapeutic Fiberoptic Bronchoscopes 6 23.25.47.13.17.33 Goniometers 5 23.25.47.13.17.35 Hand Held Vascular Dopplers 5 23.25.47.13.17.37 Mechanical Stethoscopes 5 23.25.47.13.17.39 Nasopharyngoscopes 5 23.25.47.13.17.41 Neurological Discriminators 5 23.25.47.13.17.43 Neurological Sensors 5 23.25.47.13.17.45 Ophthalmoscopes 5 23.25.47.13.17.47 Otoscopes 5 23.25.47.13.17.49 Patient Thermoregulators 5 23.25.47.13.17.51 Proctoscopes 5 23.25.47.13.17.53 Stethoscopic Phonocardiographs 5 23.25.47.13.17.55 Therapeutic Bronchoscopes 5 23.25.47.13.17.57 Vaginoscopes 5 23.25.47.13.19 Patient Weight Scales 4 23.25.47.13.19.11 Diaper Weight Scales 5 23.25.47.13.19.13 Infant Scales 5 23.25.47.13.19.15 Patient Bed Scales 5 23.25.47.13.19.17 Patient Chair Scales 5 23.25.47.13.19.19 Patient Floor Scales 5 23.25.47.13.19.21 Patient Sling Scales 5 23.25.47.13.19.23 Patient Table Scales 5 23.25.47.13.19.25 Wheelchair Platform Scales 5 23.25.47.13.21 Patient Clinical Diagnostic Analyzers 4 23.25.47.13.21.11 Amino Acid Analyzers 5 23.25.47.13.21.13 Bilirubinometers 5 23.25.47.13.21.15 Blood Bank Analyzers 5 23.25.47.13.21.17 Blood Gas Analyzers 5 23.25.47.13.21.19 Blood Chemistry Analyzers 5 23.25.47.13.21.21 Chemistry Analyzers 5 23.25.47.13.21.23 Coagulation Analyzers 5 23.25.47.13.21.23.11 Automatic Coagulation Analyzers 6 23.25.47.13.21.23.13 Fibrometers 6 23.25.47.13.21.25 Deoxyribonucleic Sequence Analyzers 5 23.25.47.13.21.27 Toxicology Analyzers 5 23.25.47.13.21.29 Hematology Analyzers 5 23.25.47.13.21.29.11 Differential Hematology Analyzers 6 23.25.47.13.21.31 Histology Analyzers 5 23.25.47.13.21.33 Breath Hydrogen Analyzers 5 23.25.47.13.21.35 Immunology Analyzers 5 23.25.47.13.21.37 Microbiology Analyzers 5 23.25.47.13.21.39 Protein Analyzers 5 23.25.47.13.21.41 Radioisotopic Analyzers 5 23.25.47.13.21.43 Urinalysis Analyzers 5 23.25.47.13.21.43.11 Advanced Urinalysis Analyzers 6 23.25.47.13.21.43.13 Basic Urinalysis Analyzers 6 23.25.47.13.21.45 Glucose Analyzers 5 23.25.47.13.21.47 Drug Screening Chemistry Analyzers 5 23.25.47.13.21.49 High Capacity Strat Chemistry Analyzers 5 23.25.47.13.21.51 Multichannel Chemistry Analyzer 5 23.25.47.13.21.53 Stat Chemistry Analyzers 5 23.25.47.13.21.55 Enzyme Immuni Assay Analysis Units 5 23.25.47.13.21.55.11 Advanced Enzyme Immuni Assay Analysis Units 6 23.25.47.13.21.55.13 Basic Enzyme Immuni Assay Analysis Units 6 23.25.47.13.21.55.15 Plate Washer Enzyme Immuni Assay Analysis Units 6 23.25.47.13.21.55.17 Hemoglobinometers 6 23.25.47.13.23 Patient Clinical Testing Products 4 23.25.47.13.23.11 Cholesterol Meters 5 23.25.47.13.23.13 Cholesterol Monitors 5 23.25.47.13.23.15 Glucose Meters 5 23.25.47.13.23.17 Glucose Monitors 5 23.25.47.15 Patient Clinical Diagnostic Prefabricated Structures 3 23.25.47.15.11 Exam Work Centers 4 23.25.47.15.13 Gross Pathology Stations 4 23.25.47.15.15 Hospital Equipment Power Columns 4 23.25.47.15.17 Medical Preparation Work Centers 4 23.25.49.00 Patient Transportation and Lifting Equipment 2 23.25.49.11 Patient transport products 3 23.25.49.11.11 Patient Transport Trolleys 4 23.25.49.11.13 Patient Gurneys 4 23.25.49.11.15 Geriatric Chairs 4 23.25.49.11.17 Patient Transport Incubators 4 23.25.49.11.19 Patient Scooters 4 23.25.49.11.21 Patient Stretchers 4 23.25.49.11.21.11 Cadaver Transport Stretchers 5 23.25.49.11.21.13 Labor Recover Stretchers 5 23.25.49.11.21.15 MRI Compatible Stretchers 5 23.25.49.11.21.17 Surgical Recovery Stretchers 5 23.25.49.11.23 Patient Mobile Stretchers 4 23.25.49.11.23.11 Tapered Head Mobile Stretchers 5 23.25.49.11.23.13 9 Position Mobile Stretchers 5 23.25.49.11.25 Wheelchairs 4 23.25.49.11.25.11 Electric Wheelchairs 5 23.25.49.11.25.13 Manual Wheelchairs 5 23.25.49.11.27 Patient Shifting Boards 4 23.25.49.11.29 Patient Transfer Mats 4 23.25.49.13 Patient lifts 3 23.25.49.13.11 Patient Scissor Lifts 4 23.25.49.13.13 Clinical Hydraulic Lifts 4 23.25.49.13.15 Patient Suspended Seats 4 23.25.49.13.17 Patient Suspended Slings 4 23.25.49.13.19 Patient Ceiling Hoists 4 23.25.49.13.21 Clinical Infant Slings 4 23.25.49.13.21.11 Patient Hoists 5 23.25.51.00 Pediatrics Products 2 23.25.51.11 Pediatrics Furnishings 3 23.25.51.11.11 Pediatric Beds 4 23.25.51.11.11.11 Pediatric Bassinets 5 23.25.51.11.11.13 Pediatric Beds 5 23.25.51.11.11.15 Pediatric Cribs 5 23.25.51.11.11.17 Pediatric Examination Tables 5 23.25.51.11.11.19 Pediatric Incubators 5 23.25.51.11.11.21 Pediatric Infant Positioning Cradles 5 23.25.51.11.11.23 Pediatric Infant Warmers 5 23.25.51.13 Pediatrics Equipment 3 23.25.51.13.11 Pediatrics Ventilators 4 23.25.51.13.11.11 Pediatric Intensive Care Ventilators 5 23.25.51.13.11.13 Infant Intensive Care Ventilators 5 23.25.51.15 Pediatrics Prefabricated Structures 3 23.25.51.15.11 Infant Prefabricated Service Columns 4 23.25.53.00 Pharmacology Products 2 23.25.53.11 Pharmacology Furnishings 3 23.25.53.11.11 Pharmacy Shelving Units 4 23.25.53.11.13 Pharmacology Cabinets 4 23.25.53.11.13.11 Medicine Cabinets 5 23.25.53.11.13.13 Narcotic Cabinets 5 23.25.53.11.13.13.11 Narcotic Cabinets With Safe 6 23.25.53.13 Pharmacology Equipment 3 23.25.53.13.11 Pharmacology Carts 4 23.25.53.13.11.11 Medication Carts 5 23.25.53.13.11.13 Unit Dose Medication Carts 5 23.25.53.13.13 Tablet Products 4 23.25.53.13.13.11 Tablet Crushers 5 23.25.53.13.13.13 Tablet Crusher Dispensers 5 23.25.53.13.13.15 Tablet Cutters 5 23.25.53.15 Pharmacology Prefabricated Structures 3 23.25.53.15.11 Pharmacy Stations 4 23.25.55.00 Psychiatric and Psychology Products 2 23.25.55.11 Psychiatric and Psychology Furnishings 3 23.25.55.11.11 Psychiatric Beds 4 23.25.55.11.11.11 Psychiatric Patient Showers 5 23.25.55.11.11.13 Psychiatric Platform Bed Without Visible Legs 5 23.25.55.11.11.15 Psychiatric Platform Beds 5 23.25.55.11.11.17 Psychiatric Platform Beds 5 23.25.55.13 Psychiatric and Psychology Equipment 3 23.25.55.15 Psychiatric and Psychology Prefabricated Structures 3 23.25.57.00 Sterilization Medical Products 2 23.25.57.11 Sterilizer Equipment 3 23.25.57.11.11 Chemical Sterilizers 4 23.25.57.11.13 Dry Heat Sterilizers 4 23.25.57.11.15 Filter Sterilizers 4 23.25.57.11.17 Gas Sterilizers 4 23.25.57.11.19 Glass Bead Sterilizers 4 23.25.57.11.21 Hot Air Sterilizers 4 23.25.57.11.23 Needle Sterilizers 4 23.25.57.11.25 Powered Instrument Cleaning Devices 4 23.25.57.11.27 Radiation Sterilizers 4 23.25.57.11.29 Sanitizer Heaters 4 23.25.57.11.31 Steam Autoclaves 4 23.25.57.11.33 Steam Sterilizers 4 23.25.57.11.35 Sterilization Cabinets 4 23.25.57.11.37 Sterilization Lamps 4 23.25.57.11.39 Sterilization Water Recovery Equipment 4 23.25.57.11.41 Double Chamber Ultrasonic Cleaners 4 23.25.57.11.43 Single Chamber Ultrasonic Cleaners 4 23.25.59.00 Surgical Products 2 23.25.59.11 Surgical Furnishings 3 23.25.59.11.11 Surgical Beds 4 23.25.59.11.11.11 Surgical Bedside Rails 5 23.25.59.11.13 Surgical Sinks 4 23.25.59.11.13.11 Surgeon Scrub Sinks 5 23.25.59.11.13.13 Surgeon’s Instrument Sinks 5 23.25.59.11.15 Surgical Tables 4 23.25.59.11.15.11 Surgical Instrument Tables 5 23.25.59.11.15.13 Spinal Operating Tables 5 23.25.59.11.15.15 Surgical Operating Tables 5 23.25.59.11.15.17 Straddle Instrument Tables 5 23.25.59.11.15.19 Medical Dressing Instrument Tables 5 23.25.59.11.15.21 Cesarean Section Patient Procedure Tables 5 23.25.59.11.15.23 Delivery Room Patient Procedure Tables 5 23.25.59.11.15.25 Surgical Instrument Tables 5 23.25.59.11.15.27 Operating Room Patient Fracture Tables 5 23.25.59.11.15.29 Operating Room Patient Procedure Tables 5 23.25.59.11.15.31 Surgical Equipment Stands 5 23.25.59.11.17 Surgical Seating 4 23.25.59.11.17.11 Surgeon Stools 5 23.25.59.11.17.13 Rolling Surgeons Stools 5 23.25.59.11.17.15 Surgical Step Stools 5 23.25.59.11.19 Surgical Cabinets 4 23.25.59.11.19.11 Surgical Instrument Cabinets 5 23.25.59.13 Surgical Equipment 3 23.25.59.13.11 Surgical Carts 4 23.25.59.13.11.11 Sterilizable Loading Carts 5 23.25.59.13.11.13 Surgical Case Carts 5 23.25.59.13.11.15 Surgical Dressing Carts 5 23.25.59.13.11.17 Operating Room Case Carts 5 23.25.59.13.13 Cardiovascular Products 4 23.25.59.13.13.11 Heart And Lung Machines 5 23.25.59.13.13.13 Intraaortic Balloon Pumps 5 23.25.59.13.13.15 Intracardiac Suction Devices 5 23.25.59.13.13.17 Perfusion Blood Parameter Monitors 5 23.25.59.13.13.19 Perfusion Bubble Traps 5 23.25.59.13.13.21 Perfusion Cardioplegia Sets 5 23.25.59.13.13.23 Perfusion Cardiotomy Reservoirs 5 23.25.59.13.13.25 Perfusion Centrifugal Equipment 5 23.25.59.13.13.27 Perfusion Heaters 5 23.25.59.13.13.29 Perfusion Coolers 5 23.25.59.13.13.31 Perfusion Dual Heater And Cooler Units 5 23.25.59.13.13.33 Perfusion Haemoconcentrators 5 23.25.59.13.13.35 Perfusion Oxygen Saturation Monitors 5 23.25.59.13.13.37 Perfusion Oxygenators 5 23.25.59.13.13.39 Perfusion Pump Heads 5 23.25.59.13.13.41 Perfusion Venous Reservoirs 5 23.25.59.13.13.43 Ventricular Assist Devices 5 23.25.59.13.13.45 Perfusion Pumps 5 23.25.59.13.13.47 Cardiovascular Reservoirs 5 23.25.59.13.13.49 Surgical Coronary Artery Blowers 5 23.25.59.13.13.51 Surgical Coronary Artery Misters 5 23.25.59.13.15 Surgical Equipment 4 23.25.59.13.15.11 Surgical Basin Stands 5 23.25.59.13.15.13 Cryosurgery Equipment 5 23.25.59.13.15.15 Electrocautery Equipment 5 23.25.59.13.15.17 Ophthalmic Irrigation Equipment 5 23.25.59.13.15.19 Ophthalmic Surgery Phacoemulsification Equipment 5 23.25.59.13.15.21 Ophthalmic Surgery Extrusion Equipment 5 23.25.59.13.15.23 Surgical Irrigation Pumps 5 23.25.59.13.15.25 Pulsed Lavage Units With Suction 5 23.25.59.13.15.27 Pulsed Lavage Units With Out Suction 5 23.25.59.13.15.29 Surgical Lasers 5 23.25.59.13.15.29.11 CO2 Surgical Lasers 6 23.25.59.13.15.29.13 KTP Surgical Lasers 6 23.25.59.13.15.31 Surgical Lithotripters 5 23.25.59.13.15.31.11 Extracorporeal Lithotripters 6 23.25.59.13.15.31.13 Ultrasound Lithotripters 6 23.25.59.13.15.33 Surgical Microscopes 5 23.25.59.13.15.35 Surgical Magnifiers 5 23.25.59.13.15.37 Surgical Pneumatic Tourniquets 5 23.25.59.13.15.39 Surgical Electric Tourniquets 5 23.25.59.13.15.41 Surgical Aspirators 5 23.25.59.13.15.41.11 General Purpose Aspirator Pressure Units 6 23.25.59.13.15.41.13 Low Pressure High Volume Suction Chest and Abdomen Aspirators 6 23.25.59.13.15.41.15 Low Pressure Low Volume Suction Surgical Aspirators 6 23.25.59.13.15.41.17 Mobile Uterine Aspirators 6 23.25.59.13.15.43 Surgical Urological Tables 5 23.25.59.13.15.45 Vitreo Retinal Fragmatome Surgery Equipment 5 23.25.59.13.15.47 Microsurgery Equipment 5 23.25.59.13.15.49 Operating Room Medication Dispensers 5 23.25.59.13.15.51 Surgical Dermatomes 5 23.25.59.13.15.53 Surgical Dermabraders 5 23.25.59.13.15.55 Surgical Dermameshers 5 23.25.59.13.15.57 Surgical Pneumatic Saws 5 23.25.59.13.15.59 Surgical Pneumatic Drills 5 23.25.59.13.15.61 Surgical Power Pin Drivers 5 23.25.59.13.15.63 Surgical Power Saws 5 23.25.59.13.15.65 Surgical Power Drills 5 23.25.59.13.15.67 Surgical Power Pin Drivers 5 23.25.59.13.15.69 Surgical Reamers 5 23.25.59.13.15.71 Surgical Shavers 5 23.25.59.13.15.73 Electrosurgical Units 5 23.25.59.13.15.73.11 Dual Output Electrosurgical Units 6 23.25.59.13.15.73.13 Endoscopy Electrosurgical Units 6 23.25.59.13.15.73.15 Monopolar Electrosurgical Units 6 23.25.59.13.15.73.17 Unblended Mobile Electrosurgical Units 6 23.25.59.13.17 Surgical Lighting Fixtures 4 23.25.59.13.17.11 Surgical Operating Room Lighting Fixtures 5 23.25.59.13.19 Surgical Support Products 4 23.25.59.13.19.11 Surgical Basin Sets 5 23.25.59.13.19.13 Surgical Bone Cement Mixing Equipment 5 23.25.59.13.19.15 Surgical Suction Canisters 5 23.25.59.13.19.17 Surgical Glove Drying Or Powdering Equipment 5 23.25.59.13.19.19 Surgical Fluid Decanting Devices 5 23.25.59.15 Surgical Prefabricated Structures 3 23.25.59.15.11 Surgical Prefabricated Service Columns 4 23.25.61.00 Veterinary and Animal Products 2 23.25.61.11 Veterinary and Animal Furnishings 3 23.25.61.11.11 Veterinary Tables 4 23.25.61.11.11.11 Veterinary Operating Tables 5 23.25.61.11.11.13 Postmortem Animal Dissection Tables 5 23.25.61.11.11.15 Necropsy Tables 5 23.25.61.11.11.17 Veterinary Surgical Tables 5 23.25.61.11.13 Veterinary Sinks 4 23.25.61.11.13.11 Animal Cage Washing Sinks 5 23.25.61.11.15 Veterinary Storage Chests 4 23.25.61.13 Veterinary and Animal Equipment 3 23.25.61.13.11 Animal Containment Products 4 23.25.61.13.11.10 Cage Washers 5 23.25.61.13.11.11 Small Animal Laboratory Cages 5 23.25.61.13.11.13 Large Animal Laboratory Cages 5 23.25.61.13.11.15 Large Animal Mobile Kennels 5 23.25.61.13.11.15.11 Intensive Care Large Animal Mobile Kennels 6 23.25.61.13.11.17 Small Animal Mobile Kennels 5 23.25.61.13.11.17.11 Intensive Care Small Animal Mobile Kennels 6 23.25.61.13.11.19 Aquaria Equipment 5 23.25.61.13.11.21 Animal Catching Devices 5 23.25.61.13.11.23 Fish Aeration Systems 5 23.25.61.15 Veterinary Equipment 3 23.25.61.15.11 Veterinary Blood Pressure Testers 4 23.25.61.15.13 Veterinary Kymograph Testers 4 23.25.61.15.15 Veterinary Pyrogenic Testers 4 23.25.61.15.17 Veterinary Stereotoxic Equipment 4 23.25.61.15.19 Veterinary Electrocardiographs ECG 4 23.25.61.17 Veterinary and Animal Prefabricated Structures 3 23.25.63.00 X Ray and Imagery Products 2 23.25.63.11 X Ray and Imagery Furnishings 3 23.25.63.11.11 X Ray and Imagery Sinks 4 23.25.63.11.11.11 Film Processing Sinks 5 23.25.63.11.11.13 Lead Lined Sinks 5 23.25.63.11.11.13.11 Lead Lined With Decay Storage Sinks 6 23.25.63.11.13 X Ray and Imagery Protective Barriers 4 23.25.63.11.13.11 X Ray Protective Screens 5 23.25.63.11.13.13 Radiofrequency Proective Screens 5 23.25.63.11.13.15 Radiological Shielding Apron Racks 5 23.25.63.11.13.17 Portable Radioactive Materials Containers 5 23.25.63.11.13.19 Radiological Shielding Freestanding Screens 5 23.25.63.11.13.21 Radiological Shielding Wall 5 23.25.63.11.13.23 Radiological Shielding Ceiling Panels 5 23.25.63.11.13.25 Radiological Shielding Floor Installed Panels 5 23.25.63.11.15 X Ray and Imagery Storage Units 4 23.25.63.11.15.11 Lead Lined Storage Cabinets 5 23.25.63.11.15.13 Photographic Slides Storage Cabinets 5 23.25.63.13 X Ray and Imagery Equipment 3 23.25.63.13.11 X Ray and Imagery Carts 4 23.25.63.13.11.11 Radium Transport Carts 5 23.25.63.13.13 Computed Tomography CT and CAT Products 4 23.25.63.13.13.11 Computed Tomography CT Complete Stationary Units 5 23.25.63.13.13.13 Computed Tomography CT Mobile Units 5 23.25.63.13.13.15 Computed Tomography CT Van Units 5 23.25.63.13.13.17 Computed Tomography CT Consoles 5 23.25.63.13.13.19 Computed Tomography CT Power Conditioners 5 23.25.63.13.13.21 Computed Tomography CT Tables 5 23.25.63.13.13.23 Computed Tomography CT Chairs 5 23.25.63.13.13.25 Computed Tomography CAT Complete Stationary Units 5 23.25.63.13.13.27 Computed Tomography CAT Mobile Units 5 23.25.63.13.13.29 Computed Tomography CAT Transportable Units 5 23.25.63.13.13.31 Computed Tomography CAT Van Units 5 23.25.63.13.13.33 Computed Tomography CAT Consoles 5 23.25.63.13.13.35 Computed Tomography CAT Power Conditioners 5 23.25.63.13.13.37 Computed Tomography CAT Tables 5 23.25.63.13.13.39 Computed Tomography CAT Chairs 5 23.25.63.13.13.41 Computerized Tomography Phantoms 5 23.25.63.13.13.41.11 Body Computerized Tomography Phantoms 6 23.25.63.13.13.41.13 Head Computerized Tomography Phantoms 6 23.25.63.13.13.41.15 Performance Computerized Tomography Phantoms 6 23.25.63.13.13.43 Computed Tomography CT Radiotherapy Simulators 5 23.25.63.13.13.45 Computed Tomography CAT Radiotherapy Simulators 5 23.25.63.13.15 Magnetic Resonance Imaging Products 4 23.25.63.13.15.11 Medical Magnetic Resonance Imaging Complete Stationary Unit Installation 5 23.25.63.13.15.13 Medical Magnetic Resonance Imaging Mobile Units 5 23.25.63.13.15.15 Medical Magnetic Resonance Imaging Transportable Units 5 23.25.63.13.15.17 Medical Magnetic Resonance Imaging Van Units 5 23.25.63.13.15.19 Medical Magnetic Resonance Imaging Monitors 5 23.25.63.13.15.21 Medical Magnetic Resonance Imaging Scanners 5 23.25.63.13.15.23 Medical Magnetic Resonance Imaging Tables 5 23.25.63.13.17 Ultrasound Doppler And Echo Imaging Products 4 23.25.63.13.17.11 Cardiac Ultrasound Units 5 23.25.63.13.17.13 Cardiac Doppler Units 5 23.25.63.13.17.15 Cardiac Echo Units 5 23.25.63.13.17.17 Cardioscopes 5 23.25.63.13.17.19 Fetal Ultrasound Units 5 23.25.63.13.17.21 Fetal Echo Units 5 23.25.63.13.17.23 Gynecological Ultrasound Units 5 23.25.63.13.17.25 Gynecological Echo Units 5 23.25.63.13.17.27 Mammographic Ultrasound Units 5 23.25.63.13.17.29 Mammographic Echo Units 5 23.25.63.13.17.31 Medical Ultrasound Bone Densitometers 5 23.25.63.13.17.33 Medical Ultrasound Or Doppler Or Echo Monitors 5 23.25.63.13.17.35 Medical Ultrasound Or Doppler Or Echo Printers 5 23.25.63.13.17.37 Medical Ultrasound Transducers 5 23.25.63.13.17.39 Medical Doppler Transducers 5 23.25.63.13.17.41 Medical Echo Transducers 5 23.25.63.13.17.43 Medical General Use Ultrasound Units 5 23.25.63.13.17.45 Medical General Use Doppler Units 5 23.25.63.13.17.47 Medical General Use Pulse Echo Units 5 23.25.63.13.17.49 Medical General Use Echography Units 5 23.25.63.13.17.51 Thesiometers 5 23.25.63.13.17.53 Vaginal Ultrasound Or Echo Probes 5 23.25.63.13.17.55 Vascular Ultrasound Units 5 23.25.63.13.17.57 Medical Ultrasound Ophthalmic Scanners 5 23.25.63.13.19 X Ray Products 4 23.25.63.13.19.11 Chest X Ray Equipment 5 23.25.63.13.19.13 Mammography X Ray Equipment 5 23.25.63.13.19.15 Medical C Arm X Ray Units 5 23.25.63.13.19.17 Medical Cine Fluoroscopy Equipment 5 23.25.63.13.19.19 Medical Radiology And Fluoroscopy RF Equipment 5 23.25.63.13.19.21 Medical Radioisotope Scanners 5 23.25.63.13.19.23 Medical X Ray Buckys 5 23.25.63.13.19.25 Medical X Ray Quality Assurance Calibration Devices 5 23.25.63.13.19.27 Medical X Ray Tables 5 23.25.63.13.19.29 Medical X Ray Stands 5 23.25.63.13.19.31 Medical X Ray Chairs 5 23.25.63.13.19.33 Medical X Ray Cabinets 5 23.25.63.13.19.35 Medical X Ray Tomography Units 5 23.25.63.13.19.37 Medical Diagnostic Use X Ray Units 5 23.25.63.13.19.39 Medical Xeroradiography Units 5 23.25.63.13.19.41 X Ray Bone Densitometers 5 23.25.63.13.19.43 Medical X Ray Intensifying Screens 5 23.25.63.13.19.45 Medical X Ray Water Coolers 5 23.25.63.13.19.47 Medical Imaging Procedure Trays 5 23.25.63.13.19.49 Medical X Ray Film Hot Spot Lights 5 23.25.63.13.19.51 Medical X Ray Film Large Rack Viewing Systems 5 23.25.63.13.19.53 Medical X Ray Film View Boxes 5 23.25.63.13.19.55 Medical X Ray Film Illuminator Windows 5 23.25.63.13.19.57 Medical X Ray Film Illuminator Screens 5 23.25.63.13.19.59 Medical X Ray Film Stereoscopes 5 23.25.63.13.21 Gamma Cameras Products 4 23.25.63.13.21.11 Medical General Use Gamma Cameras 5 23.25.63.13.21.13 Lymphatic Mapping Navigator Equipment 5 23.25.63.13.21.15 Lymphatic Mapping Probes 5 23.25.63.13.21.17 Lymphatic Mapping Collimators 5 23.25.63.13.23 Gamma Radiation Therapy Products 4 23.25.63.13.23.11 Radiosurgical Gamma Knife Collimators 5 23.25.63.13.23.13 Radiosurgical Gamma Knife Units 5 23.25.63.13.23.15 Radiosurgical Gamma Scintillators 5 23.25.63.13.25 Linear Accelerator Intensity Modulated Radiation Therapy Units 4 23.25.63.13.25.11 Medical Linear Accelerator Intensity Modulated Radiation Therapy IMRT Two Dimensional Units 5 23.25.63.13.25.13 Medical Linear Accelerator Intensity Modulated Radiation Therapy IMRT Three Dimensional Units 5 23.25.63.13.25.15 Medical Linear Accelerator Intensity Modulated Radiation Therapy IMRT Collimators 5 23.25.63.13.25.17 Dual Energy Linear Accelerator 5 23.25.63.13.27 Medical Positron Emission Tomography Units 4 23.25.63.13.27.11 Medical Positron Emission Tomography PET Units 5 23.25.63.13.29 Medical Single Photon Emission Computed Tomography Units 4 23.25.63.13.29.11 Medical Single Photon Emission Computed Tomography SPECT Units 5 23.25.63.13.31 Radiotherapy Teletherapy Products 4 23.25.63.13.31.11 Radiotherapy Teletherapy Cobalt 60 Equipment 5 23.25.63.13.31.13 Radiotherapy Teletherapy Linear Accelerators 5 23.25.63.13.31.15 Radiotherapy Teletherapy Orthovoltage X Ray Machines 5 23.25.63.13.31.17 Radiotherapy Teletherapy Superficial X Ray Machines 5 23.25.63.13.31.19 Radiotherapy Cutters 5 23.25.63.13.31.19.11 Radiotherapy Beam Block Cutters 6 23.25.63.13.31.19.13 Radiotherapy Compensator Cutters 6 23.25.63.13.33 Radiographic Fluoroscopic Units 4 23.25.63.13.33.11 Computerized Tomography Radiographic Fluoroscopic Units 5 23.25.63.13.33.13 Digital Angio Biplane Radiographic Fluoroscopic Units 5 23.25.63.13.33.15 Digital Cardiac Radiographic Fluoroscopic Units 5 23.25.63.13.33.17 Digital Chest Radiographic Fluoroscopic Units 5 23.25.63.13.33.19 Mammographic Radiographic Fluoroscopic Units 5 23.25.63.13.33.21 Non Tilt Table Radiographic Units 5 23.25.63.13.33.23 Table Radiographic Fluoroscopic Units 5 23.25.63.13.33.23.11 Remote Table Radiographic Fluoroscopic Units 6 23.25.63.13.33.25 Urologic Radiographic Fluoroscopic Units 5 23.25.63.13.33.25.11 Computerized Tomography Urologic Radiographic Fluoroscopic Units 6 23.25.63.13.35 Radiation Detection Or Monitoring Products 4 23.25.63.13.35.11 Radiation Dosimeters 5 23.25.63.13.35.13 Radiation Badges 5 23.25.63.13.35.15 Radiation Detectors 5 23.25.63.15 X Ray and Imagery Prefabricated Structures 3 23.25.63.15.11 Radiological Shielding Chambers 4 23.25.63.15.13 Radiological Shielding Rooms 4 23.25.63.15.15 Radiological Shielding Safes 4 23.25.63.17 Specialized Medical Computer Equipment 3 23.25.63.17.11 Computer Assisted Cardiology Management System 4 23.25.63.17.13 Nuclear Medicine Clinical Computers 4 23.25.63.17.15 DIN PACS Computer System 4 23.25.63.17.17 Holter Monitor Analysis Computer System 4 23.25.63.17.19 Mean Cell Volume Computers 4 23.25.63.17.21 Radiation Therapy Treatment Planning Computers 4 23.25.65.00 Biological Protection and Preservation Products 2 23.25.65.11 Biological Safety Cabinet 3 23.25.65.11.11 Biological Safety Class I Cabinets 4 23.25.65.11.13 Biological Safety Class II Cabinets 4 23.25.65.11.15 Biological Safety Class III Cabinets 4 23.25.65.11.17 Cryogenic Freezers 4 23.25.65.11.19 Biological Freezers 4 23.25.65.11.21 Biological Refrigerators 4 23.25.65.13 Cabinet Bases 3 23.25.65.13.11 Biological Safety Class I Cabinet Bases 4 23.25.65.13.13 Biological Safety Class II Cabinet Bases 4 23.25.65.13.15 Biological Safety Class III Cabinet Bases 4 23.25.67.00 Hazardous Materials Products 2 23.25.67.11 Hazardous Materials Cabinets 3 23.25.67.11.11 Acid Storage Cabinets 4 23.25.67.11.13 Flammable Storage Cabinets 4 23.25.67.13 Hazardous Materials Refrigerators and Freezers 3 23.25.67.13.11 Flammable Material Storage Refrigerators 4 23.25.67.13.13 Flammable Material Storage Freezers 4 23.25.67.13.15 Flammable Material Storage Refrigerator Freezers 4 23.25.67.13.17 Explosion Proof Refrigerators 4 23.25.67.13.19 Explosion Proof Refrigerator Freezers 4 23.25.69.00 Laboratory and Scientific Products 2 23.25.69.11 Laboratory Furnishings 3 23.25.69.11.11 Laboratory Tables 4 23.25.69.11.11.11 Microscope Tables 5 23.25.69.11.13 Laboratory Seating 4 23.25.69.11.15 Laboratory Fume Hoods 4 23.25.69.11.15.11 Bench Fume Hoods 5 23.25.69.11.15.11.11 Horizontal Laminar Flow Bench Fume Hoods 6 23.25.69.11.15.13 Floor Standing Fume Hoods 5 23.25.69.11.15.13.11 Horizontal Laminar Flow Free Standing Fume Hoods 6 23.25.69.11.15.13.13 Explosion Proof Floor Standing Fume Hoods 6 23.25.69.11.15.13.15 Perchloric Floor Standing Fume Hoods 6 23.25.69.11.15.15 Histopathology Staining Fume Hoods 5 23.25.69.11.15.17 Horizontal Laminar Flow Fume Hoods 5 23.25.69.13 Laboratory And Scientific Equipment 3 23.25.69.13.11 Microscopes 4 23.25.69.13.11.11 Acoustic Microscopes 5 23.25.69.13.11.13 Binocular Microscopes 5 23.25.69.13.11.13.11 Phase Contrast Binocular Microscopes 6 23.25.69.13.11.13.13 Binocular Light Compound Microscopes 6 23.25.69.13.11.15 Bore scope Inspection Equipment 5 23.25.69.13.11.17 Combination Electron And Light Microscopes 5 23.25.69.13.11.19 Dark field Microscopes 5 23.25.69.13.11.21 Digital Image Varityping Microscopes 5 23.25.69.13.11.23 Dissecting Light Microscopes 5 23.25.69.13.11.25 Electron Microscopes 5 23.25.69.13.11.27 Fluorescence Microscopes 5 23.25.69.13.11.29 Fluorescent Microscopes 5 23.25.69.13.11.31 Inverted Microscopes 5 23.25.69.13.11.33 Ion Microscopes 5 23.25.69.13.11.35 Laser Scanning Microscopes 5 23.25.69.13.11.37 Metallurgical Microscopes 5 23.25.69.13.11.39 Monocular Microscopes 5 23.25.69.13.11.41 Operating Microscopes 5 23.25.69.13.11.43 Photographic Fluorescent Microscopes 5 23.25.69.13.11.45 Photographic Microscopes 5 23.25.69.13.11.47 Polarizing Microscopes 5 23.25.69.13.11.49 Projection Microscopes 5 23.25.69.13.11.51 Scanning Electron Microscopes 5 23.25.69.13.11.53 Scanning Light Microscopes 5 23.25.69.13.11.55 Scanning Probe Microscopes 5 23.25.69.13.11.57 Spinning Disk Microscopes 5 23.25.69.13.11.59 Stereo Microscopes 5 23.25.69.13.11.61 Tissue Culture Inverted Microscopes 5 23.25.69.13.11.63 Transmission Electron Microscopes 5 23.25.69.13.11.65 Trinocular Microscopes 5 23.25.69.13.11.67 Wide Field Microscopes 5 23.25.69.13.13 Optical Equipment 4 23.25.69.13.13.11 Telescopes 5 23.25.69.13.13.13 Binoculars 5 23.25.69.13.13.15 Videoscopes 5 23.25.69.13.13.17 Fiberscopes 5 23.25.69.13.15 Laboratory Disruption Equipment 4 23.25.69.13.15.11 French Pressure Cells 5 23.25.69.13.15.13 Homogenizers 5 23.25.69.13.15.15 Laboratory Blenders 5 23.25.69.13.15.17 Laboratory Crushers 5 23.25.69.13.15.19 Laboratory Disintegrators 5 23.25.69.13.15.21 Laboratory Emulsifiers 5 23.25.69.13.15.23 Laboratory Mills 5 23.25.69.13.15.25 Laboratory Presses 5 23.25.69.13.15.27 Laboratory Pulverizers 5 23.25.69.13.15.29 Laboratory Tissue Grinders 5 23.25.69.13.15.31 Liquid Measuring Cans 5 23.25.69.13.15.33 Mortars 5 23.25.69.13.15.35 Pestles 5 23.25.69.13.17 Laboratory Heating Drying Equipment 4 23.25.69.13.17.11 Laboratory Dry Baths 5 23.25.69.13.17.13 Bunsen Burner 5 23.25.69.13.17.15 Laboratory Hotplates 5 23.25.69.13.17.17 Laboratory Incinerators 5 23.25.69.13.17.19 Laboratory Infrared Dryers 5 23.25.69.13.17.21 Laboratory Spirit Burners 5 23.25.69.13.17.23 Laboratory Temperature Cycling Chambers 5 23.25.69.13.17.25 Laboratory Thermal Cyclers 5 23.25.69.13.17.27 Laboratory Warming Cabinets 5 23.25.69.13.17.29 Stirring Hotplates 5 23.25.69.13.19 Histology Equipment 4 23.25.69.13.19.11 Tissue Embedding Stations 5 23.25.69.13.19.13 Embedding Molds 5 23.25.69.13.19.15 Embedding Capsules 5 23.25.69.13.19.17 Embedding Compounds 5 23.25.69.13.19.19 Histological Staining Units 5 23.25.69.13.19.21 Tissue Processors 5 23.25.69.13.19.21.11 Automatic Tissue Processors 6 23.25.69.13.19.21.13 Electron Microscopy Tissue Processors 6 23.25.69.13.19.21.15 Vacuum Tissue Processors 6 23.25.69.13.19.23 Tissue Culture Units 5 23.25.69.13.19.25 Ultrasonic Tissue Disintegrators 5 23.25.69.13.19.27 Microtomes 5 23.25.69.13.19.27.11 Tilt Rotary Microtomes 6 23.25.69.13.19.27.13 Refrigerated Tilt Rotary Microtomes 6 23.25.69.13.19.29 Slide Warmers 5 23.25.69.13.19.31 Slide Dryers 5 23.25.69.13.19.33 Slide Stainers 5 23.25.69.13.21 Laboratory Cooling Equipment 4 23.25.69.13.21.11 Liquid Nitrogen Dewars 5 23.25.69.13.21.13 Ultra Cold Upright Cabinets 5 23.25.69.13.21.15 Ultra Cold Freezers 5 23.25.69.13.21.17 Ultralow Upright Cabinets 5 23.25.69.13.21.19 Ultralow Freezers 5 23.25.69.13.21.21 Ultra Cold Chest Freezers 5 23.25.69.13.21.23 Ultralow Chest Freezers 5 23.25.69.13.21.25 Liquid Nitrogen Freezers 5 23.25.69.13.21.27 Laboratory Cold Water Circulators 5 23.25.69.13.21.29 Chromatography Refrigerators 5 23.25.69.13.21.31 Laboratory Plate Freezers 5 23.25.69.13.21.33 Laboratory Cold Traps 5 23.25.69.13.23 Centrifuges 4 23.25.69.13.23.11 Benchtop Centrifuges 5 23.25.69.13.23.13 Centrifuge Buckets 5 23.25.69.13.23.15 Centrifuge Rotors 5 23.25.69.13.23.17 Cytology Centrifuges 5 23.25.69.13.23.19 Floor Centrifuges 5 23.25.69.13.23.21 Microcentrifuges 5 23.25.69.13.23.23 Microhematocrit Centrifuges 5 23.25.69.13.23.25 Refrigerated Benchtop Centrifuges 5 23.25.69.13.23.27 Refrigerated Floor Centrifuges 5 23.25.69.13.23.29 Refrigerated Microcentrifuges 5 23.25.69.13.23.31 Serological Centrifuges 5 23.25.69.13.23.31.11 Multiple Speed Serological Centrifuges 6 23.25.69.13.23.33 Tabletop Centrifuges 5 23.25.69.13.23.35 Ultracentrifuges 5 23.25.69.13.23.37 Vacuum Centrifuges 5 23.25.69.13.25 Incubators 4 23.25.69.13.25.11 CO2 Incubators 5 23.25.69.13.25.13 Cooled Biological Oxygen Demand BOD Incubators 5 23.25.69.13.25.15 Dry Wall Dual Chamber Carbon Dioxide Incubators 5 23.25.69.13.25.17 Dry Wall Dual Chamber Carbon Dioxide Incubators With Humidity Control 5 23.25.69.13.25.19 Dry Wall Dual Chamber Three Gas Incubators 5 23.25.69.13.25.21 Dry Wall Dual Chamber Three Gas Incubators With Humidity Control 5 23.25.69.13.25.23 Dry Wall Single Chamber Carbon Dioxide Incubators 5 23.25.69.13.25.25 Dry Wall Single Chamber Carbon Dioxide Incubators With Humidity Control 5 23.25.69.13.25.27 Dry Wall Single Chamber Three Gas Incubators 5 23.25.69.13.25.29 Dry Wall Single Chamber Three Gas Incubators With Humidity Control 5 23.25.69.13.25.31 Forced Air General Purpose Incubators 5 23.25.69.13.25.33 Gravity Convection General Purpose Incubators 5 23.25.69.13.25.35 Mechanical Convection General Purpose Incubators 5 23.25.69.13.25.37 Multipurpose Incubators 5 23.25.69.13.25.39 Plate Incubators 5 23.25.69.13.25.41 Refrigerated Incubators 5 23.25.69.13.25.43 Shaking Incubators 5 23.25.69.13.25.45 Water Jacketed Dual Chamber Carbon Dioxide Incubators 5 23.25.69.13.25.47 Water Jacketed Dual Chamber Carbon Dioxide Incubators With Humidity Control 5 23.25.69.13.25.49 Water Jacketed Dual Chamber Three Gas Incubators 5 23.25.69.13.25.51 Water Jacketed Dual Chamber Three Gas Incubators With Humidity Control 5 23.25.69.13.25.53 Water Jacketed Single Chamber Carbon Dioxide Incubators 5 23.25.69.13.25.55 Water Jacketed Single Chamber Carbon Dioxide Incubators With Humidity Control 5 23.25.69.13.25.57 Water Jacketed Single Chamber Three Gas Incubators 5 23.25.69.13.25.59 Water Jacketed Single Chamber Three Gas Incubators With Humidity Control 5 23.25.69.13.27 Laboratory Ovens 4 23.25.69.13.27.11 Laboratory Ageing Ovens 5 23.25.69.13.27.13 Laboratory Cleanroom Ovens 5 23.25.69.13.27.15 Laboratory Drying Cabinets 5 23.25.69.13.27.17 Laboratory Drying Ovens 5 23.25.69.13.27.19 Laboratory Gravity Convection Ovens 5 23.25.69.13.27.21 Laboratory Induction Dryers 5 23.25.69.13.27.23 Laboratory Mechanical Convection Ovens 5 23.25.69.13.27.25 Laboratory Vacuum Ovens 5 23.25.69.13.29 Laboratory Distillers 4 23.25.69.13.29.11 Laboratory Water Distillers 5 23.27.00.00 General Facility Services Products 1 23.27.11.00 General Instruments and Controls 2 23.27.11.11 Temperature Measuring Instrument And Controls 3 23.27.11.11.11 Temperature Alarm Modules 4 23.27.11.11.13 Temperature Control Modules 4 23.27.11.11.15 Temperature Controllers 4 23.27.11.11.15.11 Digital Temperature Controllers 5 23.27.11.11.15.13 Electric Temperature Controllers 5 23.27.11.11.15.15 Pneumatic Hating Controllers 5 23.27.11.11.15.17 Hydraulic Temperature Controllers 5 23.27.11.11.17 Temperature Detectors 4 23.27.11.11.17.11 Thermocouple Detectors 5 23.27.11.11.17.13 RTD Detectors 5 23.27.11.11.19 Temperature Indicators 4 23.27.11.11.21 Temperature Recorders 4 23.27.11.11.23 Temperature Sensors 4 23.27.11.11.23.11 Thermocouple Probes 5 23.27.11.13 Pressure Measuring Instrument And Controls 3 23.27.11.13.11 Pressure Alarm Modules 4 23.27.11.13.13 Pressure Control Modules 4 23.27.11.13.15 Pressure Controllers 4 23.27.11.13.15.11 Digital Pressure Controllers 5 23.27.11.13.15.13 Electric Pressure Controllers 5 23.27.11.13.15.15 Pneumatic Hating Controllers 5 23.27.11.13.15.17 Hydraulic Pressure Controllers 5 23.27.11.13.17 Pressure Detectors 4 23.27.11.13.19 Pressure Indicators 4 23.27.11.13.21 Pressure Recorders 4 23.27.11.13.23 Pressure Sensors 4 23.27.11.13.25 Differential Pressure Alarm Modules 4 23.27.11.13.27 Differential Pressure Control Modules 4 23.27.11.13.29 Differential Pressure Controllers 4 23.27.11.13.29.11 Digital Differential Pressure Controllers 5 23.27.11.13.29.13 Electric Differential Pressure Controllers 5 23.27.11.13.29.15 Pneumatic Hating Controllers 5 23.27.11.13.29.17 Hydraulic Differential Pressure Controllers 5 23.27.11.13.31 Differential Pressure Detectors 4 23.27.11.13.33 Differential Pressure Indicators 4 23.27.11.13.35 Differential Pressure Recorders 4 23.27.11.13.37 Differential Pressure Sensors 4 23.27.11.15 Flow Measuring Instrument And Controls 3 23.27.11.15.11 Flow Alarm Modules 4 23.27.11.15.13 Flow Control Modules 4 23.27.11.15.15 Flow Controllers 4 23.27.11.15.15.11 Digital Flow Controllers 5 23.27.11.15.15.13 Electric Flow Controllers 5 23.27.11.15.15.15 Pneumatic Hating Controllers 5 23.27.11.15.15.17 Hydraulic Flow Controllers 5 23.27.11.15.17 Flow Detectors 4 23.27.11.15.19 Flow Indicators 4 23.27.11.15.21 Flow Recorders 4 23.27.11.15.23 Flow Sensors 4 23.27.11.17 Concentration Measuring Instrument And Controls 3 23.27.11.17.11 Humidity Concentration Measuring Instruments 4 23.27.11.17.13 Carbon Dioxide (CO²) Concentration Measuring Instruments 4 23.27.11.17.15 Ozone Concentration Measuring Instruments 4 23.27.11.17.17 Other Gas Concentration Measuring Instruments 4 23.27.11.19 Heat Measuring Instrument And Controls 3 23.27.11.19.11 Heat Detectors 4 23.27.11.19.13 Heating Controllers 4 23.27.11.19.13.11 Digital Heating Controllers 5 23.27.11.19.13.13 Electric Heating Controllers 5 23.27.11.19.13.15 Pneumatic Hating Controllers 5 23.27.11.19.13.17 Hydraulic Heating Controllers 5 23.27.11.19.15 Heating Programmers 4 23.27.11.19.17 Heating Optimizers 4 23.27.11.21 Level Measuring Instrument And Controls 3 23.27.11.21.11 Level Alarm Modules 4 23.27.11.21.13 Level Control Modules 4 23.27.11.21.15 Level Controllers 4 23.27.11.21.15.11 Digital Level Controllers 5 23.27.11.21.15.13 Electric Level Controllers 5 23.27.11.21.15.15 Pneumatic Hating Controllers 5 23.27.11.21.15.17 Hydraulic Level Controllers 5 23.27.11.21.17 Level Detectors 4 23.27.11.21.19 Level Indicators 4 23.27.11.21.19.11 Level Gage Glasses 5 23.27.11.21.19.13 Level Bull's Eyes 5 23.27.11.21.21 Level Recorders 4 23.27.11.21.23 Level Sensors 4 23.27.11.23 Weighing Instrument And Controls 3 23.27.11.23.11 Weight Alarm Modules 4 23.27.11.23.13 Weight Control Modules 4 23.27.11.23.15 Weight Detectors 4 23.27.11.23.17 Weight Indicators 4 23.27.11.23.19 Weight Recorders 4 23.27.11.23.21 Weight Sensors 4 23.27.11.25 Metal Concentration Instrument And Controls 3 23.27.11.25.11 Metal Detectors 4 23.27.11.27 Gas Instrument And Controls 3 23.27.11.27.11 Gas Alarm Modules 4 23.27.11.27.13 Gas Control Modules 4 23.27.11.27.15 Gas Controllers 4 23.27.11.27.15.11 Digital Gas Controllers 5 23.27.11.27.15.13 Electric Gas Controllers 5 23.27.11.27.15.15 Pneumatic Hating Controllers 5 23.27.11.27.15.17 Hydraulic Gas Controllers 5 23.27.11.27.17 Gas Detectors 4 23.27.11.27.17.11 Air Pollution Detectors 5 23.27.11.27.17.13 Radon Detectors 5 23.27.11.27.17.15 Carbon Dioxide Detectors 5 23.27.11.27.17.17 Hydrogen Detectors 5 23.27.11.27.17.19 Oxygen Detectors 5 23.27.11.27.17.21 Halon Detectors 5 23.27.11.27.19 Gas Indicators 4 23.27.11.27.21 Gas Analyzers 4 23.27.11.29 Infrared Instrument And Controls 3 23.27.11.29.11 Photoelectric Cells 4 23.27.11.29.13 Infrared Control Modules 4 23.27.11.29.15 Infrared Controllers 4 23.27.11.29.15.11 Digital Infrared Controllers 5 23.27.11.29.15.13 Electric Infrared Controllers 5 23.27.11.29.15.15 Pneumatic Hating Controllers 5 23.27.11.29.15.17 Hydraulic Infrared Controllers 5 23.27.13.00 Control and Monitoring Boards Panels 2 23.27.13.11 Internal Climate Monitoring and Control Panel 3 23.27.13.13 Building Control Systems 3 23.27.13.13.11 Building Automated Control Panels 4 23.27.13.13.13 Building Automated Systems 4 23.27.13.13.15 Building Monitoring Control Panels 4 23.27.13.15 Process Control Panels 3 23.27.13.15.11 Gaseous Waste Monitoring and Control Panels 4 23.27.15.00 Building Automation and Control 2 23.27.15.11 Building Clock Controls 3 23.27.15.13 Building Door Controls 3 23.27.15.15 Elevator Monitoring and Controls 3 23.27.15.17 Energy Monitoring and Controls 3 23.27.15.19 Building Environmental Controls 3 23.27.15.21 Building Lighting Controls 3 23.27.15.21.11 Building Lighting Control Panel 4 23.27.15.21.13 Lighting Relay Control Panel 4 23.27.15.23 HVAC Controls 3 23.27.15.23.11 HVAC Main Control Panels 4 23.27.15.23.13 HVAC Local Control Panels 4 23.27.15.23.15 HVAC Control Clocks 4 23.27.15.25 Equipment Control Panels 3 23.27.17.00 Pumps 2 23.27.17.11 Axial Split Pumps 3 23.27.17.13 Centrifugal Pumps 3 23.27.17.15 Diaphragm Pumps 3 23.27.17.17 Duplex Pumps 3 23.27.17.19 Gear Pumps 3 23.27.17.21 Liquid Ring Pumps 3 23.27.17.23 Macerator Pumps 3 23.27.17.23.11 Combined Macerator Pumps 4 23.27.17.25 Progressive Cavity Pumps 3 23.27.17.27 Ram Pumps 3 23.27.17.29 Reciprocating Pumps 3 23.27.17.31 Rotary Pumps 3 23.27.17.31.11 Rotary Cam Pumps 4 23.27.17.31.13 Rotary Lobe Pumps 4 23.27.17.31.15 Rotary Screw Pumps 4 23.27.17.31.17 Rotary Vane Pumps 4 23.27.17.33 Rotating Piston Pumps 3 23.27.17.35 Sewage Ejectors 3 23.27.17.35.11 Submersible Sewage Ejectors 4 23.27.17.37 Simplex Pumps 3 23.27.17.39 Sliding Vane Pumps 3 23.27.17.41 Turbine Pumps 3 23.27.17.43 Worm Gear Pumps 3 23.27.17.45 Pump Components 3 23.27.19.00 Engines 2 23.27.19.11 Reciprocating Engines 3 23.27.19.13 Rotary Engines 3 23.27.19.15 Turbine Engines 3 23.27.21.00 Compressors 2 23.27.21.11 Axial Flow Compressors 3 23.27.21.13 Centrifugal Compressors 3 23.27.21.15 Reciprocating Compressors 3 23.27.21.15.11 Diaphragm Reciprocating Compressors 4 23.27.21.15.13 Double Acting Reciprocating Compressors 4 23.27.21.15.15 Single Acting Reciprocating Compressors 4 23.27.21.17 Rotary Compressors 3 23.27.21.17.11 Rotary Liquid Ring Compressors 4 23.27.21.17.13 Rotary Lobe Compressors 4 23.27.21.17.15 Rotary Screw Compressors 4 23.27.21.17.17 Rotary Scroll Compressors 4 23.27.21.17.19 Rotary Vane Compressors 4 23.27.23.00 Heat Exchangers 2 23.27.23.11 Heat Exchanger Economizers 3 23.27.23.13 Plate and Frame Heat Exchangers 3 23.27.23.13.11 Plate and Frame Regenerative Heat Exchangers 4 23.27.23.15 Shell and Tube Heat Exchangers 3 23.27.23.15.11 Shell and Tube Regenerative Heat Exchangers 4 23.27.23.17 Tube and Fin Heat Exchangers 3 23.27.23.19 Spiral Heat Exchangers 3 23.27.23.19.11 Heat Exchangers for Ventilation Air 4 23.27.23.21 Adiabatic Wheel Heat Exchangers 3 23.27.23.23 Plate and Fin Heat Exchangers 3 23.27.23.23.11 Straight Fin Plate and Fin Heat Exchangers 4 23.27.23.23.13 Offset Fin Plate and Fin Heat Exchangers 4 23.27.23.23.15 Wavy Fin Plate and Fin Heat Exchangers 4 23.27.23.25 Fluid Heat Exchangers 3 23.27.25.00 Heaters for Supplied Liquids 2 23.27.25.11 Liquid Electric Heaters 3 23.27.25.13 Liquid Gas Heaters 3 23.27.25.15 Liquid Steam Heaters 3 23.27.25.17 Liquid Fuel Oil Heaters 3 23.27.25.17.11 Fuel Oil Pre Heaters 4 23.27.27.00 Pressure Reducing Stations 2 23.27.27.11 Multiple Stage Pressure Reducing Stations 3 23.27.27.13 Single Stage Pressure Reducing Stations 3 23.27.29.00 Tanks and Storage Structures 2 23.27.29.11 Reservoirs 3 23.27.29.13 Tank Foundations 3 23.27.29.13.11 Tank Support Structures 4 23.27.29.13.13 Tank Foundation Slabs 4 23.27.29.15 Specialized Tanks 3 23.27.29.15.11 Cryogenic Tanks 4 23.27.29.15.13 Flash Tanks 4 23.27.29.15.13.11 Steam Flash Tanks 5 23.27.29.15.15 Septic Tanks 4 23.27.29.15.17 Siphon Tanks 4 23.27.29.17 Storage Constructions 3 23.27.29.17.11 Water Towers 4 23.27.29.17.13 Silos 4 23.27.29.17.15 Storage Bunkers 4 23.27.29.19 Tanks 3 23.27.29.19.11 Multiple Wall Tanks 4 23.27.29.19.11.11 Multiple Walled Pressure Tanks 5 23.27.29.19.11.13 Multiple Walled Vacuum Tanks 5 23.27.29.19.11.15 Multiple Walled Vented Tanks 5 23.27.29.19.13 Single Walled Tanks 4 23.27.29.19.13.11 Single Walled Pressure Tanks 5 23.27.29.19.13.13 Single Walled Vacuum Tanks 5 23.27.29.19.13.15 Single Walled Vented Tanks 5 23.27.29.21 Tank Containments 3 23.27.29.21.11 Aboveground Tank Containments 4 23.27.29.21.11.11 Aboveground Primary Tank Containments 5 23.27.29.21.11.13 Aboveground Secondary Tank Containments 5 23.27.29.21.11.15 Aboveground Tertiary Tank Containments 5 23.27.29.21.13 Underground Tank Containments 4 23.27.29.21.13.11 Underground Primary Tank Containments 5 23.27.29.21.13.13 Underground Secondary Tank Containments 5 23.27.29.21.13.15 Underground Tertiary Tank Containments 5 23.27.29.23 Tank Linings 3 23.27.29.23.11 Tank Bladders 4 23.27.29.23.13 Rubber Tank Linings 4 23.27.29.25 Tank Components 3 23.27.29.25.11 Overflow Regulators 4 23.27.29.25.13 Fill and Valve Caps 4 23.27.29.25.15 Tank Vents 4 23.27.31.00 Valves 2 23.27.31.11 Backflow Preventors 3 23.27.31.13 Balancing Valves 3 23.27.31.13.11 Gate Balancing Valves 4 23.27.31.13.13 Butterfly Balancing Valves 4 23.27.31.13.15 Plug Balancing Valves 4 23.27.31.13.17 Globe Balancing Valves 4 23.27.31.13.19 Check Balancing Valves 4 23.27.31.13.21 Diaphragm Balancing Valves 4 23.27.31.15 Ball Valves 3 23.27.31.17 Butterfly Valves 3 23.27.31.17.11 Lug Pattern Butterfly Valves 4 23.27.31.17.13 Wafer Pattern Butterfly Valves 4 23.27.31.19 Check Valves 3 23.27.31.19.11 Ball Check Valves 4 23.27.31.19.13 Clapper CheckValves 4 23.27.31.19.15 Cone Type Check Valves 4 23.27.31.19.17 Demand Check Valves 4 23.27.31.19.19 Diaphragm Check Valves 4 23.27.31.19.21 Lift Check Valves 4 23.27.31.19.23 Spring Type Check Valves 4 23.27.31.19.25 Stop Check Valves 4 23.27.31.19.27 Swing Check Valves 4 23.27.31.21 Diaphragm Valves 3 23.27.31.23 Float Valves 3 23.27.31.25 Gate Valves 3 23.27.31.27 Globe Valves 3 23.27.31.29 Mixing Valves 3 23.27.31.29.11 Manual Mixing Valves 4 23.27.31.29.13 Pressure Balanced Controlled Mixing Valves 4 23.27.31.29.15 Thermostatically Controlled Mixing Valves 4 23.27.31.31 Needle Valves 3 23.27.31.33 Orifice Valves 3 23.27.31.35 Pinch Valves 3 23.27.31.37 Plug Drain Valves 3 23.27.31.39 Plug Valves 3 23.27.31.41 Poppet Valves 3 23.27.31.43 Post Indicator Valves 3 23.27.31.45 Preaction Valves 3 23.27.31.45.11 Electronic Actuated Preaction Valves 4 23.27.31.45.13 Water Seal Enabled Preaction Valves 4 23.27.31.47 Pressure Regulating Valves 3 23.27.31.49 Relief Valves 3 23.27.31.49.11 Pressure Relief Valves 4 23.27.31.49.13 Pressure Temperature Relief Valves 4 23.27.31.51 Rupture Disks 3 23.27.31.53 Safety Valves 3 23.27.31.53.11 Pressure Safety Valves 4 23.27.31.53.13 Pressure Temperature Safety Valves 4 23.27.31.55 Sentinel Valves 3 23.27.31.57 Slider Valves 3 23.27.31.59 Slush Valves 3 23.27.31.61 Thermostatic Expansion Valves 3 23.27.31.63 Valves Boxes 3 23.27.33.00 Valve Actuators 2 23.27.33.11 Electrical Valve Actuators 3 23.27.33.11.11 Solenoid Valve Actuators 4 23.27.33.13 Hydraulic Valve Actuators 3 23.27.33.15 Motor Operated Valve Actuators 3 23.27.33.17 Pneumatic Valve Actuators 3 23.27.35.00 Variable Speed Drives 2 23.27.35.11 Hydraulic Variable Speed Drives 3 23.27.35.11.11 Hydrodynamic Variable Speed Drives 4 23.27.35.11.13 Hydrostatic Variable Speed Drives 4 23.27.35.11.15 Hydroviscous Variable Speed Drives 4 23.27.35.13 Variable Pitch Drives 3 23.27.35.13.11 Pulley Variable Pitch Drives 4 23.27.35.13.13 Traction Variable Pitch Drives 4 23.27.35.15 Transmission Devices 3 23.27.35.15.11 Fluid Drive Transmissions 4 23.27.35.15.13 Gear Boxes 4 23.27.37.00 Liquid Traps 2 23.27.37.11 Grease Traps 3 23.27.37.13 Oil Traps 3 23.27.37.15 Steam Traps 3 23.27.37.15.11 Disc Steam Traps 4 23.27.37.15.13 Float and Thermostatic Steam Traps 4 23.27.37.15.15 Float Steam Trap 4 23.27.37.15.17 Inverted Basket Steam Traps 4 23.27.37.15.19 Orifice Steam Traps 4 23.27.39.00 Piping 2 23.27.39.11 Double Walled Pipes 3 23.27.39.11.11 Aboveground Double Walled Pipes 4 23.27.39.11.13 Underground Double Walled Pipes 4 23.27.39.13 Single Walled Pipes 3 23.27.39.13.11 Aboveground Single Walled Pipes 4 23.27.39.13.13 Underground Single Walled Pipes 4 23.27.41.00 Pipe Repair Equipment 2 23.27.41.11 Pipe Band It Kits 3 23.27.43.00 Pipe Fittings 2 23.27.43.11 Mechanical Pipe Fasteners 3 23.27.43.13 Mechanical Pipe Supports 3 23.27.43.15 Pipe Expansion Joints 3 23.27.43.17 Water Hammer Arrestors 3 23.27.43.19 Pipe Expansion Compensators 3 23.27.45.00 Pipe Flanges 2 23.27.45.11 Blind Pipe Flanges 3 23.27.45.13 Lap Joint Pipe Flanges 3 23.27.45.15 Orifice Pipe Flanges 3 23.27.45.17 Plate Pipe Flanges 3 23.27.45.19 Reducing Pipe Flanges 3 23.27.45.21 Slip On Pipe Flanges 3 23.27.45.23 Socket Weld Pipe Flanges 3 23.27.45.25 Spectacle Pipe Flanges 3 23.27.45.27 Threaded Pipe Flanges 3 23.27.45.29 Weldneck Pipe Flanges 3 23.27.47.00 Pipe Adapters 2 23.27.47.11 Female Pipe Adapters 3 23.27.47.13 Male Pipe Adapters 3 23.27.47.15 Terminal Pipe Adapters 3 23.27.47.17 Hi Low Converter Pipe Adapters 3 23.27.47.19 Twist To Lock Y Cord Pipe Adapters 3 23.27.47.21 Auto Converter Pipe Adapters 3 23.27.47.23 Conduit Box Pipe Adapters 3 23.27.47.25 Reduce Drive Pipe Adapters 3 23.27.47.27 Red Pipe Adapters 3 23.27.49.00 Pipe Couplings 2 23.27.49.11 Rigid Pipe Couplings 3 23.27.49.13 Flexible Pipe Couplings 3 23.27.49.13.11 Coil Spring Pipe Couplings 4 23.27.49.13.13 Double Loop Pipe Couplings 4 23.27.49.13.15 Tire Pipe Couplings 4 23.27.49.13.17 Flexible Link Pipe Couplings 4 23.27.49.13.19 Multi Jaw Pipe Couplings 4 23.27.49.13.21 Helical Flex Pipe Couplings 4 23.27.49.13.23 Magnetic Pipe Couplings 4 23.27.49.13.25 Metal Bellows Pipe Couplings 4 23.27.49.13.27 Diaphragm Pipe Couplings 4 23.27.49.13.29 Roller Chain Pipe Couplings 4 23.27.49.13.31 Schmidt Pipe Couplings 4 23.27.49.13.33 Shear Pipe Couplings 4 23.27.49.13.35 Sliding Block Pipe Couplings 4 23.27.49.13.37 Steel Grid Pipe Couplings 4 23.27.49.13.39 Spider Pipe Couplings 4 23.27.49.13.41 Flexible Disc Pipe Couplings 4 23.27.51.00 Pipe Elbows 2 23.27.51.11 45 Degree Pipe Elbows 3 23.27.51.13 90 Degree Pipe Elbows 3 23.27.51.15 Reducing Pipe Elbows 3 23.27.53.00 Pipe Caps 2 23.27.53.11 Threaded Pipe Caps 3 23.27.53.13 Tapered Pipe Caps 3 23.27.53.15 Anti-roll Pipe Caps 3 23.27.53.17 Knurled Pipe Caps 3 23.27.53.19 Slotted Head Pipe Caps 3 23.27.53.21 Retaining Ring Pipe Caps 3 23.27.53.23 Tear Tab Pipe Caps 3 23.27.53.25 Hanger Tip Pipe Caps 3 23.27.53.27 Pull Tab Pipe Caps 3 23.27.53.29 Vented Pipe Caps 3 23.27.55.00 Liquid Treatment Components 2 23.27.55.11 Liquid Filters 3 23.27.55.11.11 Water Filters 4 23.27.55.13 Liquid Sterilizers 3 23.27.55.15 Liquid Salinators 3 23.27.55.17 Liquid Chlorinators 3 23.27.55.19 Liquid Ionizers 3 23.27.55.21 Liquid Deionizers 3 23.27.55.23 Liquid Deaerators 3 23.27.55.23.11 Centrifugal Liquid Deaerators 4 23.27.55.23.13 Spray Type Liquid Deaerators 4 23.27.55.23.15 Tray Type Liquid Deaerators 4 23.27.55.25 Liquid Disinfecting Ultraviolet Lighting 3 23.27.55.27 Liquid Softeners 3 23.27.55.27.11 Water Softeners 4 23.27.55.29 Liquid Strainers 3 23.27.55.29.11 Basket Strainers 4 23.27.55.29.13 Conical Strainers 4 23.27.55.29.15 Tee Strainers 4 23.27.55.29.17 Y Strainers 4 23.27.55.29.19 Reverse Osmosis Units 4 23.27.55.29.21 Solid Separators 4 23.27.55.31 Liquid Chemical Feeders 3 23.27.55.31.11 Liquid Chemical Feeders 4 23.27.55.31.13 Solid Chemical Feeders 4 23.27.55.31.15 Gas Chemical Feeders 4 23.27.55.33 Liquid Treatment Package Units 3 23.27.55.33.11 Water Treatment Package Units 4 23.27.55.35 Liquid Separators 3 23.27.55.35.11 Centrifuge Liquid Separators 4 23.27.55.35.13 Demister Pad Liquid Separators 4 23.27.55.35.15 Electrical Cyclone Liquid Separators 4 23.27.55.35.17 Hydro Cyclone Liquid Separators 4 23.27.55.35.19 Mechanical Liquid Separators 4 23.27.55.35.21 Mist Eliminator Liquid Separators 4 23.27.55.35.23 Tangential Liquid Separators 4 23.27.55.35.25 Magnetic Electronic Water Treatment 4 23.27.55.35.27 Oil Water Curtain Separators 4 23.27.57.00 Gas Treatment Components 2 23.27.57.11 Vapor Traps 3 23.27.57.13 Extractors 3 23.27.57.13.11 Extractors for Process Air 4 23.27.57.15 Air Injectors 3 23.27.57.17 Air Ejectors 3 23.27.57.19 Air Scrubbers 3 23.27.57.19.11 Dual Throat Air Scrubbers 4 23.27.57.19.13 Multiple Venture Air Scrubbers 4 23.27.57.19.15 Packed Bed Air Scrubbers 4 23.27.57.21 Supply Gas Treatment 3 23.27.57.21.11 Steam Treatment 4 23.27.57.21.13 Fuel Gas Treatment 4 23.27.57.21.13.11 Gas Filters 5 23.27.57.23 Electronic Air Purifiers 3 23.27.57.25 Mechanically Aided Air Scrubbers 3 23.27.57.27 Air Filters 3 23.27.57.27.11 Air Filter Components 4 23.27.57.27.11.11 Air Filter Media 5 23.27.57.27.11.13 Control Air Filter Assemblies 5 23.27.57.27.13 High Efficiency Air Filters 4 23.27.57.27.15 ULPA Filters 4 23.27.57.27.17 HEPA Filters 4 23.27.57.27.19 Bag Filters 4 23.27.57.27.21 Air Filter Housings 4 23.27.57.27.23 Air Charcoal Filters 4 23.27.57.27.25 Roll Type Filters 4 23.27.57.29 Dust Collectors 3 23.27.57.31 Electronic Air Cleaners 3 23.27.57.33 Air Fresheners 3 23.27.57.35 Air Treatment Components 3 23.27.57.35.11 Air Deodorization Products 4 23.27.57.35.13 Moisture Absorbents 4 23.27.59.00 Recycling Equipment 2 23.27.59.11 Recycling Balers 3 23.27.59.11.11 Recycling Cardboard Balers 4 23.27.59.11.13 Recycling Paper Balers 4 23.27.59.11.15 Recycling Plastic Balers 4 23.27.59.11.17 Recycling Wood Balers 4 23.27.59.13 Recycling Bins 3 23.27.59.15 Recycling Compactors 3 23.27.59.15.11 Cardboard Compactors 4 23.27.59.15.13 Metal Compactors 4 23.27.59.15.15 Paper Compactors 4 23.27.59.15.17 Plastic Compactors 4 23.27.59.15.19 Trash Compactors 4 23.27.59.15.21 Wood Compactors 4 23.27.61.00 Incinerators 2 23.27.61.11 Trash Incinerators 3 23.27.61.13 Document Incinerators 3 23.27.63.00 Mechanical Insulation and Linings 2 23.27.63.11 Pipe Insulation 3 23.27.63.13 Equipment Insulation Blankets 3 23.27.65.00 Equipment Acoustic Insulation 2 23.27.65.11 Sound Dampening Equipment Mounts 3 23.27.67.00 Corrosion Proofing Equipment 2 23.27.67.11 Zinc Bars 3 23.27.67.13 Zinc Tapes 3 23.27.69.00 Antivibration Mountings 2 23.27.69.11 Vibration Equipment Mounts 3 23.27.71.00 Building Maintenance Equipment 2 23.27.71.11 Window Washing Systems 3 23.27.71.13 Building Maintenance Cradles and Platforms 3 23.27.71.15 Roof Trolley Systems 3 23.27.71.17 Traveling Ladder Systems 3 23.27.71.19 Ancillary Building Maintenance Items 3 23.27.71.19.11 Building Safety Tracks 4 23.27.71.19.13 Anchors for Building Maintenance 4 23.27.71.21 Fall Arrest Systems 3 23.29.00.00 Facility and Occupant Protection Products 1 23.29.11.00 Security Detection and Monitoring 2 23.29.11.11 Closed Circuit Television Equipment 3 23.29.11.11.11 Infra Red CCTV Cameras 4 23.29.11.11.13 Visual Light Wavelength CCTV Cameras 4 23.29.11.11.15 CCTV Camera Enclosures 4 23.29.11.11.17 Security Camera Controllers 4 23.29.11.11.19 Security Camera Multiplexors 4 23.29.11.11.21 Security Camera Monitoring System Panels 4 23.29.11.13 Security Video Imaging System Equipment 3 23.29.11.13.11 Security Video Monitors 4 23.29.11.13.13 Security Video Recorders 4 23.29.11.13.13.11 Security Analog Video Recorders 5 23.29.11.13.13.13 Security Digital Video Recorders 5 23.29.11.15 Explosive Detectors 3 23.29.11.15.11 Explosive Detector Sniffers 4 23.29.11.15.11.11 Chemical Explosive Detectors 5 23.29.11.15.11.13 Particulate Explosive Detectors 5 23.29.11.15.13 Explosive Detector Spectral Analyzers 4 23.29.11.17 Security Metal Detectors 3 23.29.11.17.11 Security Weather Resistant Walk Through Metal Detectors 4 23.29.11.17.13 Security Indoor Walk Through Metal Detectors 4 23.29.11.17.15 Security Hand Held Metal Detectors 4 23.29.11.19 Security X Ray Machines 3 23.29.11.19.11 Security X Ray Conveyor Machines 4 23.29.11.19.13 Security Personnel X Ray Machines 4 23.29.11.21 Security Sensors 3 23.29.11.21.11 Audio Security Sensors 4 23.29.11.21.13 Security Ground Loop Sensors 4 23.29.11.21.15 Infra Red Security Sensors 4 23.29.11.21.17 Ultrasonic Security Sensors 4 23.29.11.21.19 Security Vibration Sensors 4 23.29.11.23 Intrusion Detection Devices 3 23.29.11.23.11 Intrusion Detection Buried Cables 4 23.29.11.23.13 Intrusion Detection Fiber Optic Fence Line Loops 4 23.29.11.23.15 Intrusion Detection Microwave Alarms 4 23.29.11.23.17 Intrusion Detection Photoelectric Sensors 4 23.29.11.23.19 Intrusion Detection Door Monitoring Switches 4 23.29.11.23.21 Pressure Mats 4 23.29.11.23.23 Door Micro Switch Contacts 4 23.29.11.23.25 Window Micro Switch Contacts 4 23.29.11.23.27 Break Glass Detection 4 23.29.11.23.29 Movement Vibration Detection 4 23.29.11.23.31 Infra Red Radiation Personnel Detectors 4 23.29.11.23.33 Microwave Personnel Detectors 4 23.29.11.23.35 Security Autodialers 4 23.29.11.25 Presence Detection Registration 3 23.29.11.25.11 Personnel Clocking In and Recording Equipment 4 23.29.11.25.13 Surveillance Mirrors 4 23.29.11.25.15 Manual Alert Control 4 23.29.11.25.17 Security Door Bells 4 23.29.11.25.19 Security Buzzers 4 23.29.11.27 Security Keypads 3 23.29.11.27.11 Alarm Keypads 4 23.29.11.27.13 Security Keypads 4 23.29.11.29 Vehicle Inspection Devices 3 23.29.11.29.11 Undercarriage Inspection Lighting 4 23.29.13.00 Security Access Controls 2 23.29.13.11 Personnel Biometric Readers 3 23.29.13.11.11 Fingerprint Readers 4 23.29.13.11.13 Hand Geometry Readers 4 23.29.13.11.15 Iris Scanners 4 23.29.13.11.17 Retinal Scanners 4 23.29.13.11.19 Vein Recognition Readers 4 23.29.13.13 Personnel Card Readers 3 23.29.13.13.11 Personnel Contact Card Readers 4 23.29.13.13.11.11 Mag Stripe Personnel Contact Card Readers 5 23.29.13.13.11.13 Smart Card Personnel Contact Card Readers 5 23.29.13.13.11.15 Weigand Personnel Contact Card Readers 5 23.29.13.13.13 Personnel Contactless Card Readers 4 23.29.13.13.13.11 Barcode Personnel Contactless Card Readers 5 23.29.13.13.13.13 Near Field Proximity Personnel Contactless Card Readers 5 23.29.13.13.13.15 Proximity Personnel Contactless Card Readers 5 23.29.13.15 Personnel Counting Equipment 3 23.29.13.17 Security Door Answering Controls 3 23.29.13.19 Electronic Key Equipment 3 23.29.13.21 Security Personnel Access Keypads 3 23.29.13.23 Access Control Turnstiles 3 23.29.13.23.11 Waist Height Turnstiles 4 23.29.13.23.13 Full Height Turnstiles 4 23.29.13.23.15 Portable Post and Railing Barriers 4 23.29.15.00 Secure Storage Structures and Products 2 23.29.15.11 Vaults 3 23.29.15.11.11 Prefabricated Room Vaults 4 23.29.15.11.13 Commercial Vaults 4 23.29.15.11.15 Residential Vaults 4 23.29.15.13 Safes 3 23.29.15.13.11 Commercial Safes 4 23.29.15.13.13 Residential Safes 4 23.29.15.15 Lockers 3 23.29.15.15.11 Metal Lockers 4 23.29.15.15.13 Wood Lockers 4 23.29.15.15.15 Plastic Laminate Clad Lockers 4 23.29.15.15.17 Plastic Lockers 4 23.29.15.15.19 Glass Lockers 4 23.29.15.15.21 Wire Mesh Storage Lockers 4 23.29.17.00 Property Storage Locks 2 23.29.17.11 Bicycle Locks 3 23.29.17.13 Padlocks 3 23.29.17.13.11 Combination Padlocks 4 23.29.17.13.13 Pin Tumbler Padlocks 4 23.29.19.00 Chemical Biological Radiological Protection 2 23.29.19.11 Prefabricated Mail Screening Products 3 23.29.19.13 Biological Safety Cabinets 3 23.29.21.00 Equipment for Security of Information 2 23.29.21.11 Centralized Code Reading Equipment 3 23.29.23.00 Fireproofing Components 2 23.29.23.11 Fireproofing Gaskets 3 23.29.23.13 Fireproofing Fillers for Threaded Couplings 3 23.29.23.15 Fireproof Pipe Sleeves 3 23.29.23.17 Smoke Seals for Ductwork 3 23.29.25.00 Fire Fighting Equipment 2 23.29.25.11 Fire Fighting Terminals 3 23.29.25.11.11 Fire Fighting Terminal Components 4 23.29.25.11.13 Water Fire Fighting Terminals 4 23.29.25.11.15 Gaseous Fire Fighting Terminals 4 23.29.25.11.17 Foam Fire Fighting Terminals 4 23.29.25.11.19 Powder Fire Fighting Terminals 4 23.29.25.11.21 Fire Fighting Media 4 23.29.25.11.23 Fire Fighting Gas Terminals 4 23.29.25.13 Fire Hydrants 3 23.29.25.13.11 Dry Barrel Fire Hydrants 4 23.29.25.13.13 Wet Barrel Fire Hydrants 4 23.29.25.15 Fire Hose Equipment 3 23.29.25.15.11 Fire Hoses 4 23.29.25.15.13 Fire Hose Outlets 4 23.29.25.15.15 Cabinets for Fire Hoses 4 23.29.25.15.17 Fire Hose Reels 4 23.29.25.15.19 Fire Hose Connectors 4 23.29.25.15.19.11 Fire Fighting Standpipes 5 23.29.25.15.19.13 Fire Fighting Pumper Connections 5 23.29.25.17 Fire Nozzles 3 23.29.25.17.11 Fire Fog Nozzles 4 23.29.25.17.13 Fire Stream Nozzles 4 23.29.25.17.15 Fire Electrical Rated Nozzles 4 23.29.25.19 Fire Extinguishers 3 23.29.25.19.11 Stored Pressure Fire Extinguishers 4 23.29.25.19.11.11 Stored Pressure Fire Extinguishers With Gauge 5 23.29.25.19.13 Non Stainless Steel Fire Extinguishers 4 23.29.25.19.15 Non Rechargeable Fire Extinguishers 4 23.29.25.19.17 Gas Cart Fire Extinguishers 4 23.29.25.19.17.11 Gas Cart Fire Extinguishers With Gauge 5 23.29.25.19.19 Foam Fire Extinguishers 4 23.29.27.00 Fire Ventilation Equipment 2 23.29.27.11 Fire Fighting Smoke Extractors 3 23.29.29.00 Fire Detection Devices 2 23.29.29.11 Fire Alarm Pull Stations 3 23.29.29.11.11 Addressable Fire Alarm Pull Stations 4 23.29.29.11.13 Non Addressable Fire Alarm Pull Stations 4 23.29.29.13 Fire Detectors 3 23.29.29.13.11 Smoke Detectors 4 23.29.29.13.11.11 Spot Type Photoelectric Smoke Detectors 5 23.29.29.13.11.13 Spot Type Ionization Smoke Detectors 5 23.29.29.13.11.15 Spot Type Duct Photoelectric Smoke Detectors 5 23.29.29.13.11.17 Spot Type Duct Ionization Smoke Detectors 5 23.29.29.13.11.19 Beam Type Smoke Detectors 5 23.29.29.13.13 Heat Detectors 4 23.29.29.13.13.11 Fixed Temperature Heat Detectors 5 23.29.29.13.13.13 Rate of Rise Heat Detectors 5 23.29.29.13.15 Flame Detectors 4 23.29.29.13.17 Spark and Ember Detectors 4 23.29.29.13.19 Radiant Energy Detectors 4 23.29.29.15 Fire Switches 3 23.29.29.15.11 Pressure Fire Alarm Water Flow Switches 4 23.29.29.15.13 Paddle Fire Alarm Water Flow Switches 4 23.29.29.15.15 Fire Tamper Switches 4 23.29.31.00 Fire Notification Appliances 2 23.29.31.11 Fire Alarm Annunicator Panels 3 23.29.31.11.11 Audible Fire Alarm Annunicator Panels 4 23.29.31.11.13 Visible Fire Alarm Annunicator Panels 4 23.29.31.11.15 Combination Fire Alarm Annunicator Panels 4 23.29.31.13 Fire Alarm Control Panels 3 23.29.31.13.11 Main Fire Alarm Control Panels 4 23.29.31.13.13 Secondary Fire Alarm Control Panels 4 23.29.31.13.15 Fire Alarm Audio Control Panels 4 23.29.31.13.17 Fire Alarm Smoke Control Panels 4 23.29.31.15 Audible Fire Notification Devices 3 23.29.31.15.11 Audible Fire Notification Devices Bell 4 23.29.31.15.13 Audible Fire Notification Devices Horn 4 23.29.31.15.15 Audible Fire Notification Devices Chime 4 23.29.31.15.17 Audible Fire Notification Devices Speaker 4 23.29.31.17 Visible Fire Notification Devices 3 23.29.31.17.11 Visible Fire Notification Device Lights 4 23.29.31.19 Combination Audible and Visible Fire Notification Devices 3 23.29.31.21 Fire Alarm Communicators 3 23.29.31.23 Fire Alarm Central Stations 3 23.29.31.23.11 Fire Alarm Central Station Transmitters 4 23.29.31.23.13 Fire Alarm Central Station Receivers 4 23.29.31.23.15 Fire Alarm Central Station Combination Transmitter and Receivers 4 23.29.31.25 Fire Alarm Event Recorders 3 23.29.31.27 Fire Alarm Event Printers 3 23.29.31.29 Fire Alarm Remote Controllers 3 23.29.31.31 Fire Alarm Remote Amplifiers 3 23.29.31.33 Fire Pump Controllers 3 23.29.31.35 Jockey Pump Controllers 3 23.29.33.00 Fire Suppression System Components 2 23.29.33.11 Water Based Suppression Equipment 3 23.29.33.11.11 Pendant Sprinkler Heads 4 23.29.33.11.11.11 Wet Pendant Sprinkler Heads 5 23.29.33.11.11.13 Dry Pendant Sprinkler Heads 5 23.29.33.11.11.15 Open Pendant Sprinkler Heads 5 23.29.33.11.13 Upright Sprinkler Heads 4 23.29.33.11.13.11 Wet Upright Sprinkler Heads 5 23.29.33.11.13.13 Dry Upright Sprinkler Heads 5 23.29.33.11.13.15 Open Upright Sprinkler Heads 5 23.29.33.11.15 Side Wall Sprinkler Heads 4 23.29.33.11.15.11 Wet Side Wall Sprinkler Heads 5 23.29.33.11.15.13 Dry Side Wall Sprinkler Heads 5 23.29.33.11.17 Dry Pipe Valves 4 23.29.33.11.19 Water Mist Systems 4 23.29.33.13 Non Water Based Suppression Equipment 3 23.29.33.13.11 Clean Agent Gaseous Suppression Equipment 4 23.29.33.13.13 Carbon Dioxide Suppression Equipment 4 23.29.33.13.15 Halon Suppression Equipment 4 23.29.33.13.17 Wet Chemical Fire Suppression Equipment 4 23.29.33.13.19 Dry Chemical Fire Suppression Equipment 4 23.29.33.13.21 Foam Fire Suppression Equipment 4 23.29.33.15 Fire Blankets 3 23.29.35.00 Fire Rescue Component 2 23.29.35.11 Evacuation Chairs 3 23.29.35.13 Evacuation Slides 3 23.29.37.00 Occupational Safety and Health Equipment 2 23.29.37.11 Emergency Drench Hoses 3 23.29.37.13 Emergency Eye Wash Stations 3 23.29.37.13.11 Counter Top Eye Wash Stations 4 23.29.37.13.13 Floor Mounted Eye Wash Stations 4 23.29.37.13.15 Combination Emergency Eye Wash Stations 4 23.29.37.13.17 Dedicated Emergency Eye Wash Stations 4 23.29.37.15 Emergency Showers 3 23.29.37.15.11 Combination Emergency Showers 4 23.29.37.15.13 Dedicated Emergency Showers 4 23.29.39.00 Environmental Safety Equipment 2 23.29.39.11 Environmental Spill Kits 3 23.29.39.13 Pollution Monitoring and Control 3 23.29.39.13.11 Air Pollution Monitoring Systems 4 23.29.39.13.13 Water Pollution Monitoring Systems 4 23.29.39.15 Built In Failure Detection 3 23.29.39.15.11 Infiltration Detection 4 23.29.39.15.13 Service Leak Detection 4 23.29.39.15.13.11 Gas Leak Detection Agents 5 23.29.39.15.13.13 Water Leak Detection 5 23.31.00.00 Plumbing Specific Products and Equipment 1 23.31.11.00 Faucets 2 23.31.11.11 Ball Faucets 3 23.31.11.11.11 Sink Ball Faucets 4 23.31.11.11.13 Bathtub Ball Faucets 4 23.31.11.11.15 Shower Ball Faucets 4 23.31.11.13 Compression Faucets 3 23.31.11.13.11 Sink Compression Faucets 4 23.31.11.13.13 Bathtub Compression Faucets 4 23.31.11.13.15 Shower Compression Faucets 4 23.31.11.15 Cartridge Faucets 3 23.31.11.15.11 Sink Cartridge Faucets 4 23.31.11.15.13 Bathtub Cartridge Faucets 4 23.31.11.15.15 Shower Cartridge Faucets 4 23.31.11.17 Disc Faucets 3 23.31.11.17.11 Sink Disc Faucets 4 23.31.11.17.13 Bathtub Disc Faucets 4 23.31.11.17.15 Shower Disc Faucets 4 23.31.11.19 Faucet Mixing Valves 3 23.31.11.19.11 Thermostatically Controlled Faucet Mixing Valves 4 23.31.11.19.13 Pressure Sensitive Faucet Mixing Valves 4 23.31.11.19.15 Pressure Balanced Faucet Mixing Valves 4 23.31.13.00 Sinks 2 23.31.13.11 Single Sinks 3 23.31.13.13 Dual Sinks 3 23.31.13.15 Multiple Sinks 3 23.31.13.17 Sink Components 3 23.31.13.17.11 Sink Splashbacks 4 23.31.13.17.13 Sink Drains 4 23.31.13.19 Specialty Sinks 3 23.31.13.19.11 Sacristy 4 23.31.13.19.13 Darkroom Sinks 4 23.31.13.19.15 Hairdressing Sinks 4 23.31.13.19.17 Mop Sinks 4 23.31.13.19.19 Service Sinks 4 23.31.15.00 Bathtubs 2 23.31.15.11 Bath Shower Units 3 23.31.15.13 Sitz Baths 3 23.31.15.15 Jacuzzi Baths 3 23.31.15.17 Bathtub Components 3 23.31.15.17.11 Bathtub Enclosures 4 23.31.15.17.13 Bathtub Splashbacks 4 23.31.15.17.15 Bathtub Panels 4 23.31.15.17.17 Bathtub Seats 4 23.31.15.17.19 Bathtub Screens 4 23.31.15.17.21 Bathtub Grab Bars 4 23.31.15.17.23 Bathtub Drains 4 23.31.17.00 Showers 2 23.31.17.11 Shower Compartments 3 23.31.17.13 Shower Receptors 3 23.31.17.15 Shower Enclosure Bases 3 23.31.17.17 Shower Enclosures 3 23.31.17.19 Shower Head Fixtures 3 23.31.17.21 Shower Splashbacks 3 23.31.17.23 Shower Seats 3 23.31.17.25 Shower Screens 3 23.31.17.27 Shower Curtains 3 23.31.17.29 Shower Drains 3 23.31.17.31 Shower Rods 3 23.31.19.00 Toilets 2 23.31.19.11 Combination Toilets 3 23.31.19.11.11 Detention Combination Toilets 4 23.31.19.13 Incinerating Toilets 3 23.31.19.15 Tankless Toilets 3 23.31.19.15.11 Floor Mounted Tankless Toilets 4 23.31.19.15.13 Wall Mounted Tankless Toilets 4 23.31.19.17 Toilets With Tank 3 23.31.19.17.11 Floor Mounted Toilets With Tank 4 23.31.19.17.13 Wall Mounted Toilets With Tank 4 23.31.19.19 Water Closets 3 23.31.19.19.11 Water Operated Water Closets 4 23.31.19.19.13 Chemical Biological Sanitary Disposal Units 4 23.31.19.19.15 Sanitary Macerators 4 23.31.19.19.17 Water Closet Seats 4 23.31.19.19.19 Water Closet Tanks 4 23.31.19.19.21 Sanitary Disposal Connectors 4 23.31.21.00 Urinals 2 23.31.21.11 Incinerating Urinals 3 23.31.21.13 Water Flush Urinals 3 23.31.21.13.11 Floor Water Flush Urinals 4 23.31.21.13.13 Wall Mounted Water Flush Urinals 4 23.31.21.15 Waterless Urinals 3 23.31.21.15.11 Floor Waterless Urinals 4 23.31.21.15.13 Wall Mounted Waterless Urinals 4 23.31.23.00 Bidets 2 23.31.25.00 Toilet and Bath Specialties 2 23.31.25.11 Restroom Partitions 3 23.31.25.11.11 Toilet Partitions 4 23.31.25.11.13 Toilet Door Partitions 4 23.31.25.11.15 Urinal Partitions 4 23.31.25.11.17 Shower Partitions 4 23.31.25.13 Bathroom Cabinets 3 23.31.25.15 Hand Dryers 3 23.31.25.17 Hair Dryers 3 23.31.25.19 Restroom Paper Towel Accessories 3 23.31.25.19.11 Paper Towel Dispensers 4 23.31.25.19.13 Paper Towel Dispenser With Disposal Units 4 23.31.25.21 Toilet Paper Dispensers 3 23.31.25.23 Feminine Hygiene Components 3 23.31.25.23.11 Sanitary Napkin Dispensers 4 23.31.25.23.13 Sanitary Napkin Dispenser With Disposal Units 4 23.31.25.23.15 Tampon Dispensers 4 23.31.25.23.17 Tampon Dispenser With Disposal Units 4 23.31.25.23.19 Combination Sanitary Napkin and Tampon Dispensers 4 23.31.25.23.21 Combination Sanitary Napkin and Tampon Dispenser With Disposal Units 4 23.31.25.25 Towel Bars 3 23.31.25.25.11 Electric Heated Towel Bars 4 23.31.25.25.13 Water Heated Towel Bars 4 23.31.25.27 Robe Hooks 3 23.31.25.29 Restroom Hand Soap Components 3 23.31.25.29.11 Hand Soap Holders 4 23.31.25.29.13 Hand Soap Dispensers 4 23.31.25.31 Diaper Changing Units 3 23.31.25.33 Bathroom Deodorizers 3 23.31.27.00 Floor Drains 2 23.31.27.11 Floor Drain Plugs 3 23.31.27.13 Floor Drain Plug Chains 3 23.31.27.15 Floor Drain Covers 3 23.31.29.00 Hot Water Heaters 2 23.31.29.11 Instantaneous Hot Water Heaters 3 23.31.29.11.11 Electric Instantaneous Hot Water Heaters 4 23.31.29.11.13 Gas Instantaneous Hot Water Heaters 4 23.31.29.13 Hot Water Tank Heaters 3 23.31.29.13.11 Hot Water Tank Electric Heaters 4 23.31.29.13.13 Hot Water Tank Gas Heaters 4 23.31.29.13.15 Hot Water Tank Steam Heaters 4 23.31.29.13.17 Hot Water Tank Fuel Oil Heaters 4 23.31.31.00 Drinking Fountains 2 23.31.31.11 Drinking Fountain With Coolers 3 23.31.31.13 Drinking Fountains With Direct Expansion Cooling 3 23.31.33.00 Complete Sanitary Suites 2 23.31.33.11 Complete Bathroom Suites 3 23.31.35.00 Plumbing Tubing 2 23.31.35.11 Tubing Reducers 3 23.31.35.13 Tubing Couplings 3 23.31.35.15 Tubing Elbows 3 23.31.35.17 Tubing Plugs 3 23.31.35.19 Tubing Tees 3 23.33.00.00 HVAC Specific Products and Equipment 1 23.33.11.00 Commercial Boilers 2 23.33.11.11 Boiler Controls 3 23.33.11.11.11 Boiler Control Panels 4 23.33.11.11.13 Boiler Burner Controls 4 23.33.11.13 Condensing Boilers 3 23.33.11.15 Fire Tube Boilers 3 23.33.11.15.11 High Pressure Steam Fire Tube Boilers 4 23.33.11.15.13 High Temperature Hot Water Fire Tube Boilers 4 23.33.11.15.15 Low Pressure Steam Fire Tube Boilers 4 23.33.11.15.17 Low Temperature Hot Water Fire Tube Boilers 4 23.33.11.17 Flexible Tube Boilers 3 23.33.11.17.11 High Pressure Steam Flexible Tube Boilers 4 23.33.11.17.13 High Temperature Hot Water Flexible Tube Boilers 4 23.33.11.17.15 Low Pressure Steam Flexible Tube Boilers 4 23.33.11.17.17 Low Temperature Hot Water Flexible Tube Boilers 4 23.33.11.19 Sectionalized Cast Iron Boilers 3 23.33.11.19.11 Low Pressure Steam Sectionalized Cast Iron Boilers 4 23.33.11.19.13 Low Temperature Hot Water Sectionalized Cast Iron Boilers 4 23.33.11.21 Water Tube Boilers 3 23.33.11.21.11 High Pressure Steam Water Tube Boilers 4 23.33.11.21.13 High Temperature Hot Water Water Tube Boilers 4 23.33.11.21.15 Low Pressure Steam Water Tube Boilers 4 23.33.11.21.17 Low Temperature Hot Water Water Tube Boilers 4 23.33.11.22 Electric Boilers 3 23.33.11.23 Boiler Components 3 23.33.11.23.11 Boiler Joint Fillers and Sealants 4 23.33.11.23.13 Boiler Fuel Burners 4 23.33.11.23.15 Boiler Fuel Oil Filters 4 23.33.11.23.17 Boiler Nozzles 4 23.33.11.23.19 Boiler Induction Blowers 4 23.33.11.23.21 Boiler Fuel Gas Heat Recovery Devices 4 23.33.11.23.23 Boiler Draft Fans 4 23.33.13.00 Furnaces 2 23.33.13.11 Furnace Controls 3 23.33.13.11.11 Furnace Control Panels 4 23.33.13.11.13 Furnace Burner Controls 4 23.33.13.13 Coal Fired Furnaces 3 23.33.13.15 Electric Resistance Furnaces 3 23.33.13.17 Natural Gas Fired Furnaces 3 23.33.13.19 Gasoline Fired Furnaces 3 23.33.13.21 Fuel Oil Fired Furnaces 3 23.33.13.23 Oil Fired Furnaces 3 23.33.13.25 Propane Fired Furnaces 3 23.33.13.27 Furnace Components 3 23.33.13.27.11 Furnace Joint Fillers and Sealants 4 23.33.13.27.13 Furnace Fuel Burners 4 23.33.13.27.15 Furnace Fuel Oil Filters 4 23.33.13.27.17 Furnace Nozzles 4 23.33.13.27.19 Furnace Fuel Gas Heat Recovery Devices 4 23.33.15.00 HVAC Heating Units 2 23.33.15.11 Propane HVAC Heaters 3 23.33.15.11.11 Indoor Propane HVAC Heaters 4 23.33.15.11.13 Outdoor Propane HVAC Heaters 4 23.33.15.13 Heating Stoves 3 23.33.15.13.11 Cast Iron Heating Stoves 4 23.33.15.13.13 Stone Heating Stoves 4 23.33.15.13.15 Welded Steel Heating Stoves 4 23.33.15.13.17 Heating Stove Components 4 23.33.15.13.17.11 Heating Stove Fenders 5 23.33.15.13.17.13 Heating Stove Hoods 5 23.33.15.13.17.15 Heating Stove Pipes 5 23.33.15.15 Specialized Surface Heating Products 3 23.33.15.15.11 Heating Sheets 4 23.33.15.15.11.11 Heating Sheets for Walls 5 23.33.15.15.11.13 Heating Sheets for Ceilings 5 23.33.15.15.11.15 Embedded Electric Heating Sheets 5 23.33.15.15.11.17 Heating Sheets for Glazing 5 23.33.15.15.13 Heating Cables 4 23.33.15.15.15 Pipe Heat Tape 4 23.33.15.15.17 Cable Heat Trace 4 23.33.15.15.19 Heated Ceiling Panels 4 23.33.15.15.21 Pipe Heat Tracing 4 23.33.15.17 Fuel Fired HVAC Heaters 3 23.33.15.17.11 Fuel Fired HVAC Duct Heaters 4 23.33.15.17.13 Fuel Fired HVAC Radiant Heaters 4 23.33.15.17.15 Fuel Fired HVAC Unit Heaters 4 23.33.15.17.17 Fuel Fired HVAC Air Heaters 4 23.33.15.19 Forced Air Fuel Fired HVAC Heaters 3 23.33.15.19.11 Forced Air Fuel Fired HVAC Duct Heaters 4 23.33.15.19.13 Forced Air Fuel Fired HVAC Radiant Heaters 4 23.33.15.19.15 Forced Air Fuel Fired HVAC Unit Heaters 4 23.33.15.19.17 Forced Air Fuel Fired HVAC Air Heaters 4 23.33.15.21 Hydronic HVAC Heaters 3 23.33.15.21.11 Cast Iron Radiators 4 23.33.15.21.13 Finned Tube Radiators 4 23.33.15.21.15 Plate Radiators 4 23.33.15.21.17 Radiation Heating Panels 4 23.33.15.23 Forced Air Hydronic HVAC Heaters 3 23.33.15.23.11 Forced Air Cast Iron Radiators 4 23.33.15.23.13 Forced Air Finned Tube Radiators 4 23.33.15.23.15 Forced Air Plate Radiators 4 23.33.15.23.17 Forced Air Radiation Heating Panels 4 23.33.15.25 Electric HVAC Heaters 3 23.33.15.25.11 Halogen Electric HVAC Heaters 4 23.33.15.25.13 Infrared Plate HVAC Heaters 4 23.33.15.25.15 Ultraviolet HVAC Heaters 4 23.33.15.25.17 Electric HVAC Resistive Unit Heaters 4 23.33.15.27 Forced Air Electric HVAC Heaters 3 23.33.15.27.11 Forced Air Halogen Electric HVAC Heaters 4 23.33.15.27.13 Forced Air Infrared Plate HVAC Heaters 4 23.33.15.27.15 Forced Air Ultraviolet HVAC Heaters 4 23.33.15.27.17 Forced Air Electric HVAC Resistive Unit Heaters 4 23.33.15.29 HVAC Steam Hot Water Converters 3 23.33.17.00 Heat Pumps 2 23.33.17.11 Packaged Heat Pumps 3 23.33.17.11.11 Air Source Packaged Heat Pumps 4 23.33.17.11.13 Water Source Packaged Heat Pumps 4 23.33.17.13 Split System Heat Pumps 3 23.33.17.13.11 Air Source Split System Heat Pumps 4 23.33.17.13.13 Water Source Split System Heat Pumps 4 23.33.19.00 Cooling and Freeze Components 2 23.33.19.11 Cooling Freeze Plant Accessories 3 23.33.19.11.11 Refrigerant Liquid 4 23.33.21.00 Chillers 2 23.33.21.11 Absorption Chillers 3 23.33.21.11.11 Direct Fired Absorption Chillers 4 23.33.21.11.13 Steam Absorption Chillers 4 23.33.21.13 Chillers 3 23.33.21.13.11 Central Package Unit Chillers 4 23.33.21.13.13 Centrifugal Chillers 4 23.33.21.13.13.11 Packaged Centrifugal Chillers 5 23.33.21.13.13.13 Split System Centrifugal Chillers 5 23.33.21.13.15 Reciprocating Chillers 4 23.33.21.13.15.11 Packaged Reciprocating Chillers 5 23.33.21.13.15.13 Split System Reciprocating Chillers 5 23.33.21.13.17 Rotary Chillers 4 23.33.21.13.17.11 Packaged Rotary Chillers 5 23.33.21.13.17.13 Split System Rotary Chillers 5 23.33.21.13.19 Rotary Screw Chillers 4 23.33.21.13.19.11 Packaged Rotary Screw Chillers 5 23.33.21.13.19.13 Split System Rotary Screw Chillers 5 23.33.21.13.21 Screw Chillers 4 23.33.21.13.21.11 Packaged Screw Chillers 5 23.33.21.13.21.13 Split System Screw Chillers 5 23.33.21.13.23 Scroll Chillers 4 23.33.21.13.23.11 Packaged Scroll Chillers 5 23.33.21.13.23.13 Split System Scroll Chillers 5 23.33.23.00 Cooling Towers 2 23.33.23.11 Mechanical Draft Cooling Towers 3 23.33.23.13 Natural Draft Cooling Towers 3 23.33.23.15 Cooling Ponds 3 23.33.25.00 Air Handling Units 2 23.33.25.11 Built Up Air Handling Units 3 23.33.25.11.11 Built Up Indoor Air Handling Units 4 23.33.25.11.13 Built Up Rooftop Air Handling Units 4 23.33.25.13 Customized Air Handling Units 3 23.33.25.13.11 Customized Indoor Air Handling Units 4 23.33.25.13.13 Customized Rooftop Air Handling Units 4 23.33.25.15 Heating and Ventilating Units 3 23.33.25.17 Modular Air Handling Units 3 23.33.25.17.11 Modular Indoor Air Handling Units 4 23.33.25.17.13 Modular Rooftop Air Handling Units 4 23.33.25.19 Pre Fabricated Air Handling Units 3 23.33.27.00 Air Humidity Control Equipment 2 23.33.27.11 Air Washers 3 23.33.27.11.11 Convection Air Washers 4 23.33.27.11.13 Evaporative Air Washers 4 23.33.27.13 Dehumidifiers 3 23.33.27.13.11 Dehumidifiers 4 23.33.27.13.11.11 Swimming Pool Dehumidification Units 5 23.33.27.13.13 Permanently Installed Dehumidifiers 4 23.33.27.13.15 Portable Dehumidifiers 4 23.33.27.15 Air Humidifiers 3 23.33.27.17 Vaporizers 3 23.33.29.00 HVAC Dampers 2 23.33.29.11 3 Way Diverter Dampers 3 23.33.29.13 Backdraft Dampers 3 23.33.29.13.11 Opposed Blade Backdraft Dampers 4 23.33.29.13.11.11 Spring Loaded Opposed Blade Backdraft Dampers 5 23.33.29.13.11.13 Counter Weight Balanced Opposed Blade Backdraft Dampers 5 23.33.29.13.13 Parallel Backdraft Dampers 4 23.33.29.13.13.11 Spring Loaded Parallel Backdraft Dampers 5 23.33.29.13.13.13 Counter Weight Balanced Parallel Backdraft Dampers 5 23.33.29.15 Bi Plane Dampers 3 23.33.29.17 Butterfly Dampers 3 23.33.29.17.11 Automatically Control Butterfly Dampers 4 23.33.29.17.13 Manual Butterfly Dampers 4 23.33.29.19 Dampers 3 23.33.29.19.11 Automatically Control Dampers 4 23.33.29.19.13 Manual Dampers 4 23.33.29.21 Diffuser Firestop Flaps 3 23.33.29.23 Fire Dampers 3 23.33.29.23.11 Manual Fire Dampers 4 23.33.29.23.13 Automatic Fire Dampers 4 23.33.29.25 Smoke Dampers 3 23.33.29.25.11 Manual Smoke Dampers 4 23.33.29.25.13 Automatic Smoke Dampers 4 23.33.29.27 Non Return Dampers 3 23.33.29.29 Guillotine Dampers 3 23.33.29.31 Louvre Dampers 3 23.33.29.31.11 Louvre Dampers with Opposed Blade Motion 4 23.33.29.33 Movable Blade Wall Louvers 3 23.33.29.33.11 Double Panel Wall Louvers 4 23.33.29.35 Static Pressure Regulating Dampers 3 23.33.29.37 Volume Control Dampers 3 23.33.29.37.11 Opposed Blade Volume Control Dampers 4 23.33.29.37.11.11 Manual Opposed Blade Volume Control Dampers 5 23.33.29.37.11.13 Automatic Opposed Blade Volume Control Dampers 5 23.33.29.37.13 Parallel Volume Control Dampers 4 23.33.29.37.13.11 Manual Parallel Volume Control Dampers 5 23.33.29.37.13.13 Automatic Parallel Volume Control Dampers 5 23.33.29.39 Fire Shutters for Air Ductwork 3 23.33.31.00 Air Circulators 2 23.33.31.11 Air Curtains 3 23.33.31.11.11 Heated Air Curtains 4 23.33.31.11.13 Non Heated Air Curtains 4 23.33.31.13 Blowers 3 23.33.31.13.11 Permanently Installed Blowers 4 23.33.31.13.13 Portable Blowers 4 23.33.31.15 Exhaust Hoods 3 23.33.31.15.11 Canopy Exhaust Hoods 4 23.33.31.15.13 Chemical Fume Hoods 4 23.33.31.15.15 Perchloric Acid Fume Hoods 4 23.33.31.15.17 Radio Isotope Fume Hoods 4 23.33.31.15.19 Snorkel Exhaust Hoods 4 23.33.31.15.21 Grease Exhaust Hoods 4 23.33.31.17 Exhaust Hood Fire Suppression System 3 23.33.31.17.11 Chemical Exhaust Hood Fire Suppression Systems 4 23.33.31.17.13 Gas Exhaust Hood Fire Suppression Systems 4 23.33.31.19 Fans 3 23.33.31.19.11 Axial Fans 4 23.33.31.19.11.11 Axial Plug Fans 5 23.33.31.19.11.13 Axial Vane Fans 5 23.33.31.19.11.15 Ceiling Fans 5 23.33.31.19.11.17 Propeller Fans 5 23.33.31.19.11.19 Tube Axial Fans 5 23.33.31.19.11.21 Variable Pitch Axial Vane Fans 5 23.33.31.19.13 Centrifugal Fans 4 23.33.31.19.13.11 Centrifugal Plug Fans 5 23.33.31.19.13.13 Double Inlet Centrifugal Fans 5 23.33.31.19.13.15 Single Inlet Centrifugal Fans 5 23.33.31.21 Power Ventilators 3 23.33.31.21.11 Centrifugal Power Ventilators 4 23.33.31.21.11.11 Down Blast Centrifugal Power Ventilators 5 23.33.31.21.11.13 Up Blast Centrifugal Power Ventilators 5 23.33.31.21.13 Propeller Power Ventilators 4 23.33.31.21.13.11 Down Blast Propeller Power Ventilators 5 23.33.31.21.13.13 Up Blast Propeller Power Ventilators 5 23.33.33.00 HVAC Fan Coil Units 2 23.33.33.11 Fan Coil Units 3 23.33.33.11.11 Fan Coil Cooling Units 4 23.33.33.11.11.11 2 Pipe Fan Coil Cooling Units 5 23.33.33.11.11.13 4 Pipe Fan Coil Cooling Units 5 23.33.33.11.13 Fan Coil Heating Units 4 23.33.33.11.13.11 4 Pipe Fan Coil Heating Units 5 23.33.33.11.13.13 2 Pipe Fan Coil Heating Units 5 23.33.33.11.15 Fan Coil Heating and Cooling Units 4 23.33.33.11.15.11 2 Pipe Fan Coil Heating and Cooling Units 5 23.33.33.11.15.13 4 Pipe Fan Coil Heating and Cooling Units 5 23.33.35.00 HVAC Coils 2 23.33.35.11 HVAC Coils 3 23.33.35.11.11 HVAC Glycol Coils 4 23.33.35.11.13 HVAC Steam Coils 4 23.33.35.11.15 HVAC Water Coils 4 23.33.37.00 Refrigerant Condensing Units 2 23.33.37.11 Packaged Refrigerant Coils and Fan Units 3 23.33.37.13 Refrigerant Condensing Coils 3 23.33.37.15 Refrigerant Evaporators 3 23.33.39.00 Air Conditioning Equipment 2 23.33.39.11 Air Conditioners 3 23.33.39.11.11 Room Air Conditioners 4 23.33.39.13 High Pressure Air Conditioning Units 3 23.33.39.15 Make Up Air Units 3 23.33.39.15.11 Make Up Air Units With Heat 4 23.33.39.15.13 Make Up Air Units Without Heat 4 23.33.39.17 Packaged Air Conditioners 3 23.33.39.17.11 Dual Pack Packaged Air Conditioners 4 23.33.39.17.11.11 Air Cooled Dual Pack Packaged Air Conditioners 5 23.33.39.17.11.13 Water Cooled Dual Pack Packaged Air Conditioners 5 23.33.39.17.13 Single Pack Packaged Air Conditioners 4 23.33.39.17.13.11 Air Cooled Single Pack Packaged Air Conditioners 5 23.33.39.17.13.13 Water Cooled Single Pack Packaged Air Conditioners 5 23.33.39.17.13.15 Unitary Air Conditioning Equipment 5 23.33.39.19 Packaged Terminal Air Conditioning Units 3 23.33.39.19.11 Fixed Packaged Terminal Air Conditioners 4 23.33.39.19.11.11 Air Cooled Fixed Packaged Terminal Air Conditioners 5 23.33.39.19.11.13 Water Cooled Fixed Packaged Terminal Air Conditioners 5 23.33.39.19.13 Portable Packaged Terminal Air Conditioners 4 23.33.39.19.13.11 Air Cooled Portable Packaged Terminal Air Conditioners 5 23.33.39.19.13.13 Water Cooled Portable Packaged Terminal Air Conditioners 5 23.33.39.19.15 Window Packaged Terminal Air Conditioners 4 23.33.39.19.15.11 Air Cooled Window Packaged Terminal Air Conditioners 5 23.33.39.19.15.13 Water Cooled Window Packaged Terminal Air Conditioners 5 23.33.39.21 Split System Air Conditioning Units 3 23.33.41.00 HVAC Air Terminals 2 23.33.41.11 Fan Powered Terminal Air Units 3 23.33.41.11.11 Mixing Fan Powered Terminal Air Units 4 23.33.41.11.11.11 Single Duct Mixing Fan Powered Terminal Air Units 5 23.33.41.11.11.13 Dual Duct Mixing Fan Powered Terminal Air Units 5 23.33.41.11.13 Non Mixing Fan Powered Terminal Air Units 4 23.33.41.11.13.11 Single Duct Mixing Fan Powered Terminal Air Units 5 23.33.41.11.13.13 Dual Duct Mixing Fan Powered Terminal Air Units 5 23.33.41.13 Induction Terminal Air Units 3 23.33.41.13.11 Constant Volume Air Induction Terminal Air Units 4 23.33.41.13.11.11 Single Duct Constant Volume Air Induction Terminal Air Units 5 23.33.41.13.11.13 Dual Duct Constant Volume Air Induction Terminal Air Units 5 23.33.41.13.13 Variable Air Volume Induction Terminal Air Units 4 23.33.41.13.13.11 Single Duct Variable Air Volume Induction Terminal Air Units 5 23.33.41.13.13.13 Dual Duct Variable Air Volume Induction Terminal Air Units 5 23.33.41.15 HVAC Mixing Boxes 3 23.33.41.17 Terminal Air Units 3 23.33.41.17.11 Constant Volume Air Terminal Units 4 23.33.41.17.11.11 Dual Duct Constant Volume Air Terminal Units 5 23.33.41.17.11.13 Single Duct Constant Volume Air Terminal Units 5 23.33.41.17.13 Variable Air Volume Terminal Units 4 23.33.41.17.13.11 Dual Duct Variable Air Volume Terminal Units 5 23.33.41.17.13.13 Single Duct Variable Air Volume Terminal Units 5 23.33.41.19 Exhaust Terminals 3 23.33.43.00 HVAC Condenser Units 2 23.33.43.11 Air Cooled Condenser Units 3 23.33.43.11.11 Indoor Air Cooled Condenser Units 4 23.33.43.11.13 Outdoor Air Cooled Condenser Units 4 23.33.43.13 Evaporative Condenser Units 3 23.33.43.15 Refrigeration Condenser Units 3 23.33.43.15.11 Air Cooled Refrigeration Condenser Units 4 23.33.43.15.13 Water Cooled Refrigeration Condenser Units 4 23.33.43.17 Water Cooled Condenser Units 3 23.33.43.17.11 Indoor Water Cooled Condenser Units 4 23.33.45.00 HVAC Coolers 2 23.33.45.11 HVAC Dry Coolers 3 23.33.45.13 HVAC Evaporative Coolers 3 23.33.47.00 Air Dryers 2 23.33.47.11 Refrigerated Air Dryers 3 23.33.47.13 Regenerative Desiccant Air Dryers 3 23.33.49.00 HVAC Ductwork 2 23.33.49.11 Ventilation Diffusers 3 23.33.49.11.11 Ceiling Ventilation Diffusers 4 23.33.49.11.11.11 Ceiling Linear Ventilation Diffusers 5 23.33.49.11.13 Wall Ventilation Diffusers 4 23.33.49.11.15 Floor Ventilation Diffusers 4 23.33.49.13 Ventilation Ducts 3 23.33.49.13.11 Round Ventilation Ducts 4 23.33.49.13.11.11 Flexible Ventilation Ducts 5 23.33.49.13.13 Square Ventilation Ducts 4 23.33.49.15 Duct Access Panels 3 23.33.49.17 Duct Insulation 3 23.33.49.17.11 Duct Covering Insulation 4 23.33.49.17.13 Duct Liner Insulation 4 23.33.49.19 Ductwork Distribution Collectors 3 23.33.49.21 Ductwork Expansion Vessels 3 23.33.49.21.11 Air Outlets and Inlets 4 23.33.49.21.13 Ductwork Guide Vanes 4 23.33.49.21.15 Ductwork Air Mixers 4 23.33.49.21.17 Ductwork Sound Attenuators 4 23.33.49.23 Grilles 3 23.33.49.23.11 Exhaust Air Grilles 4 23.33.49.23.13 Return Air Grilles 4 23.33.49.23.15 Supply Air Grilles 4 23.33.49.23.17 Transfer Air Grilles 4 23.33.49.25 Ventilation Registers 3 23.33.49.25.11 Exhaust Air Ventilation Registers 4 23.33.49.25.13 Return Air Ventilation Registers 4 23.33.49.25.15 Supply Air Ventilation Registers 4 23.33.49.27 Ventilators 3 23.33.49.27.11 Gravity Ventilators 4 23.33.49.27.13 Intake and Relief Ventilators 4 23.33.49.27.15 Relief Ventilators 4 23.33.49.27.17 Intake Ventilators 4 23.33.49.29 Air Ductwork Accessories 3 23.33.49.29.11 Access Fittings for Air Ductwork 4 23.33.49.29.13 Couplings for Air Ductwork 4 23.33.49.29.15 Hangers for Air Ductwork 4 23.33.49.29.17 Supports for Air Ductwork 4 23.33.49.29.19 Mechanical Fasteners for Air Ductwork 4 23.33.51.00 HVAC Specialized Equipment 2 23.33.51.11 Refrigerant Monitors 3 23.33.51.13 Refrigerant Purge Units 3 23.33.51.15 Ultraviolet Disinfection Lighting 3 23.33.53.00 Solar Water Heating Equipment 2 23.33.53.11 Solar Water Heating Packaged Units 3 23.33.53.13 Solar Water Heating Collector Components 3 23.33.53.13.11 Solar Water Heating Absorber Plates 4 23.33.53.13.13 Solar Water Heating Absorber Tubing 4 23.33.53.13.15 Solar Water Heating Coatings and Surface Treatment 4 23.33.53.13.17 Solar Water Heating Collector Insulation 4 23.33.53.13.19 Solar Water Heating Glazing 4 23.33.53.13.21 Solar Water Heating Housing and Framing 4 23.33.53.13.23 Solar Water Heating Reflectors 4 23.33.53.15 Solar Water Heating Collector Units 3 23.33.53.15.11 Solar Water Heating Flat Plate Collectors 4 23.33.53.15.13 Solar Water Heating Concentrating Collectors 4 23.33.53.15.15 Solar Water Heating Vacuum Tube Collectors 4 23.33.55.00 Energy HVAC Recovery Equipment 2 23.33.55.11 Heat Pipes 3 23.33.55.13 Heat Wheels 3 23.35.00.00 Electrical and Lighting Specific Products and Equipment 1 23.35.11.00 Electrical Generators 2 23.35.11.11 Single Unit Electrical Generators 3 23.35.11.11.11 Engine Electrical Generators 4 23.35.11.11.13 Motor Electrical Generators 4 23.35.11.12 Single Unit Electrical Generator Engines 3 23.35.11.12.11 Electrical Generation Diesel Engines 4 23.35.11.12.13 Electrical Generation Gas Engines 4 23.35.11.12.15 Electrical Generation Natural Gas Engines 4 23.35.11.12.15.11 Electrical Generation Natural Gas Turbines 5 23.35.11.12.17 Electrical Generation Steam Turbines 4 23.35.11.13 Motor Generator Sets 3 23.35.11.13.11 Alternating Current Frequency Converters 4 23.35.11.13.13 Alternating Current Generator Sets 4 23.35.11.13.15 Direct Current Generator Sets 4 23.35.11.13.17 Multiple Frequency Electrical Generator Sets 4 23.35.11.13.19 Multiple Voltage Electrical Generator Sets 4 23.35.11.15 Engine Generator Sets 3 23.35.11.15.11 Diesel Generator Sets 4 23.35.11.15.13 Gas Generator Sets 4 23.35.11.15.15 Natural Gas Generator Sets 4 23.35.11.15.17 Steam Turbine Generator Sets 4 23.35.11.15.19 Thermal Generator Sets 4 23.35.11.15.21 Hydro Turbine Generator Sets 4 23.35.11.15.23 Wind Generator Sets 4 23.35.11.17 Photovoltaic Generators 3 23.35.11.17.11 Photoelectric Cell 4 23.35.11.17.12 Photoelectric Panel 4 23.35.11.17.13 Photovoltaic Array 4 23.35.11.17.15 Photovoltaic Collectors 4 23.35.13.00 Transformers 2 23.35.13.11 Current Transformers 3 23.35.13.13 Instrument Transformers 3 23.35.13.13.11 Current Instrument Transformers 4 23.35.13.13.13 Pulse Instrument Transformers 4 23.35.13.13.15 Voltage Instrument Transformers 4 23.35.13.15 Electrical Network Transformers 3 23.35.13.15.11 Electrical Network Isolation Transformers 4 23.35.13.15.11.11 Electrical Network Dry Isolation Transformers 5 23.35.13.15.11.13 Electrical Network Oil Filled Isolation Transformers 5 23.35.13.15.13 Electrical Network Step Down Transformers 4 23.35.13.15.13.11 Electrical Network Dry Step Down Transformers 5 23.35.13.15.13.13 Electrical Network Oil Filled Step Down Transformers 5 23.35.13.15.15 Electrical Network Step Up Transformers 4 23.35.13.15.15.11 Electrical Network Dry Step Up Transformers 5 23.35.13.15.15.13 Electrical Network Oil Filled Step Up Transformers 5 23.35.13.17 Power Transformers 3 23.35.13.17.11 Power Harmonic Mitigation Transformers 4 23.35.13.17.11.11 Power Dry Harmonic Mitigation Transformers 5 23.35.13.17.11.13 Power Oil Filled Harmonic Mitigation Transformers 5 23.35.13.17.13 Power Isolation Transformers 4 23.35.13.17.13.11 Power Dry Isolation Transformers 5 23.35.13.17.13.13 Power Oil Filled Isolation Transformers 5 23.35.13.17.15 Power Step Down Transformers 4 23.35.13.17.15.11 Power Dry Step Down Transformers 5 23.35.13.17.15.13 Power Oil Filled Step Down Transformers 5 23.35.13.17.17 Power Step Up Transformers 4 23.35.13.17.17.11 Power Dry Step Up Transformers 5 23.35.13.17.17.13 Power Oil Filled Step Up Transformers 5 23.35.13.19 Transformer Accessories 3 23.35.13.19.11 Transformer Commutators 4 23.35.13.19.13 Transformer Ballasts 4 23.35.15.00 Electric Motors 2 23.35.15.11 Alternating Current (AC) Motors 3 23.35.15.11.11 Single Phase AC Motors 4 23.35.15.11.11.11 Multi Speed Single Phase AC Motors 5 23.35.15.11.11.13 Single Speed Single Phase AC Motors 5 23.35.15.11.11.15 Synchronous Single Phase AC Motors 5 23.35.15.11.13 Three Phase AC Motors 4 23.35.15.11.13.11 Multi Speed Three Phase AC Motors 5 23.35.15.11.13.13 Single Speed Three Phase AC Motors 5 23.35.15.11.13.15 Synchronous Three Phase AC Motors 5 23.35.15.13 Direct Current (DC) Motors 3 23.35.15.13.11 Brushless DC Motors 4 23.35.15.13.13 Compound Wound DC Motors 4 23.35.15.13.15 Coreless DC Motors 4 23.35.15.13.17 Limited Angle Torque DC Motors 4 23.35.15.13.19 Linear DC Motors 4 23.35.15.13.21 Permanent Magnetic DC Motors 4 23.35.15.13.23 Series Wound DC Motors 4 23.35.15.13.25 Shunt Wound DC Motors 4 23.35.15.13.27 Step DC Motors 4 23.35.15.15 DC Servo Motors 3 23.35.15.17 Dynamotors 3 23.35.15.19 Hydraulic Driven Motors 3 23.35.15.21 Pneumatic Driven Motors 3 23.35.15.23 Steam Driven Motors 3 23.35.17.00 Variable Speed Drives 2 23.35.17.11 Direct Current Electronic Speed Controller Drives 3 23.35.17.13 Slip Controlled Drives 3 23.35.17.15 Variable Frequency Drives 3 23.35.17.15.11 Pulse Width Variable Frequency Drives 4 23.35.17.15.13 Current Source Input Variable Frequency Drives 4 23.35.17.15.15 Variable Voltage Input Variable Frequency Drives 4 23.35.19.00 Batteries 2 23.35.19.11 Battery Racks 3 23.35.19.13 Non Rechargeable Batteries 3 23.35.19.13.11 Alkaline Batteries 4 23.35.19.13.13 Dry Cell Batteries 4 23.35.19.13.15 Lithium Batteries 4 23.35.19.13.17 Silver Oxide Batteries 4 23.35.19.13.19 Zinc Air Batteries 4 23.35.19.13.21 Zinc Coal Batteries 4 23.35.19.15 Rechargeable Batteries 3 23.35.19.15.11 Alkaline Batteries 4 23.35.19.15.13 Lead Acid Batteries 4 23.35.19.15.13.11 Sealed Lead Acid Batteries 5 23.35.19.15.13.13 Wet Cell Lead Acid Batteries 5 23.35.19.15.15 Lithium Batteries 4 23.35.19.15.17 Manganese Batteries 4 23.35.19.15.19 Mercuric Oxide Batteries 4 23.35.19.15.21 Nickel Cadmium Batteries 4 23.35.19.15.23 Nickel Hydrogen Batteries 4 23.35.19.15.25 Nickel Iron Batteries 4 23.35.19.15.27 Nickel Metal Hydride Batteries 4 23.35.19.15.29 Nickel Sodium Chloride Batteries 4 23.35.19.15.31 Silver Oxide Batteries 4 23.35.21.00 Battery Chargers 2 23.35.23.00 Power Conditioning Equipment 2 23.35.23.11 Harmonic Control Devices 3 23.35.23.11.11 Electric Interference Suppressor Filters 4 23.35.23.11.13 Harmonic Filters 4 23.35.23.13 Power Converters 3 23.35.23.13.11 Rotary Converters 4 23.35.23.15 Static Power Converters 3 23.35.23.15.11 Static Rectifiers 4 23.35.23.15.13 Ondulators 4 23.35.23.15.15 Combined Converter Sets 4 23.35.23.15.17 Direct Current (DC) Drive Controllers 4 23.35.23.15.19 Slip Controllers 4 23.35.23.15.21 Static Frequency Converters 4 23.35.23.15.23 Static Uninterruptible Power Supplies 4 23.35.23.15.25 Variable Frequency Controllers 4 23.35.23.15.27 Frequency Changers 4 23.35.23.15.29 Rotary Uninterruptible Power Units 4 23.35.23.17 Power Inverters 3 23.35.23.17.11 Commutator Inverters 4 23.35.23.17.13 Solid State Inverters 4 23.35.23.19 Powerfactor Correction Devices 3 23.35.23.19.11 Capacitive and Inductive Power Correction Devices 4 23.35.23.19.13 Capacitive Power Correction Devices 4 23.35.23.19.15 Inductive Power Correction Devices 4 23.35.23.19.17 Capacitors 4 23.35.23.19.19 Power Factor Controls (Cosines Phi) 4 23.35.23.21 Uninterrupted Power Supply (UPS) Units 3 23.35.23.21.11 Uninterruptible Power Supply Component Systems 4 23.35.23.21.13 Uninterruptible Power Supply Packaged Units 4 23.35.25.00 Electrical Instrumentation and Controls 2 23.35.25.11 Electrical Meters 3 23.35.25.11.11 Power Meters 4 23.35.25.11.13 Voltage Meters 4 23.35.25.11.15 Resistance Meters 4 23.35.25.11.17 Frequency Meters 4 23.35.25.11.19 Multi Meters 4 23.35.25.11.21 Current Meters 4 23.35.25.11.23 Amp Hour Meters 4 23.35.25.11.25 Power Factor Meters 4 23.35.25.11.27 Kilowatt Hour Meters 4 23.35.25.11.27.11 Electromechanical Remote Kilowatt Hour Meters 5 23.35.25.11.27.13 Electromechancial Kilowatt Hour Meters 5 23.35.25.11.27.15 Solid State Remote Kilowatt Hour Meters 5 23.35.25.11.27.17 Solid State Kilowatt Hour Meters 5 23.35.25.11.29 Multiple Tariff Meters 4 23.35.25.13 Electrical Energy Recording Devices 3 23.35.25.13.11 Watt Hour Recorders 4 23.35.25.15 Electrical Network Protection Modules 3 23.35.25.17 Electrical Power Protection Modules 3 23.35.25.19 Motor Starters 3 23.35.25.21 Programmable Logic Controllers 3 23.35.25.23 Electrical Control Panels 3 23.35.25.25 Electrical Line Supervisor Sets 3 23.35.27.00 Electrical Terminals 2 23.35.27.11 Electrical Receptacles 3 23.35.27.11.11 Electrical Receptacle Terminal Units 4 23.35.27.11.13 Ground Fault Receptacles 4 23.35.27.11.15 Electrical Extension Cords 4 23.35.27.11.17 Electrical Receptacle Accessories 4 23.35.27.11.17.11 Electrical Telltale Lamps 5 23.35.27.11.17.13 Electrical Receptacle Protectors 5 23.35.27.11.17.15 Electrical Receptacle Adapters 5 23.35.27.13 Electrical Plug Connectors 3 23.35.29.00 Circuit Breakers 2 23.35.29.11 Air Circuit Breakers 3 23.35.29.11.11 Network Distribution Air Circuit Breakers 4 23.35.29.11.13 Power Distribution Air Circuit Breakers 4 23.35.29.13 Gas Circuit Breakers 3 23.35.29.13.11 Network Distribution Gas Circuit Breakers 4 23.35.29.13.13 Power Distribution Gas Circuit Breakers 4 23.35.29.15 Ground Fault Circuit Breakers 3 23.35.29.17 Molded Case Circuit Breakers 3 23.35.29.17.11 Shunt Molded Case Circuit Breakers 4 23.35.29.19 Oil Circuit Breakers 3 23.35.29.19.11 Network Distribution Oil Circuit Breakers 4 23.35.29.19.13 Power Distribution Oil Circuit Breakers 4 23.35.29.21 Vacuum Circuit Breakers 3 23.35.29.21.11 Network Distribution Vacuum Circuit Breakers 4 23.35.29.21.13 Power Distribution Vacuum Circuit Breakers 4 23.35.29.23 Ground Fault Circuit Interrupters 3 23.35.29.25 Network Protectors 3 23.35.29.27 Electrical Disconnects 3 23.35.29.27.11 Air Disconnects 4 23.35.29.27.13 Vacuum Disconnects 4 23.35.29.27.15 Gas Disconnects 4 23.35.29.29 Fuses 3 23.35.29.29.11 Fuse Panels 4 23.35.29.29.13 Fuse Holders 4 23.35.31.00 Electrical Power Distribution Devices 2 23.35.31.11 Power Supply Devices 3 23.35.31.13 Distribution Panel Boards 3 23.35.31.15 Electrical Distribution Control Panels 3 23.35.31.17 Electrical Panel Boards 3 23.35.31.19 Electrical Panel Meter Sockets 3 23.35.31.21 Load Centers 3 23.35.31.23 Motor Control Centers 3 23.35.31.25 Power Control and Monitoring Assemblies 3 23.35.31.27 Power Distribution Units 3 23.35.31.27.11 Multiple Section Power Distribution Units 4 23.35.31.27.13 Stand Alone Power Distribution Units 4 23.35.31.29 Switchboards 3 23.35.31.29.11 Distribution Switchboards 4 23.35.31.29.13 Paralleling Switchboards 4 23.35.31.31 Switchgear 3 23.35.31.31.11 Distribution Switchgear 4 23.35.31.31.11.11 Electronic Controlled Distribution Switchgear 5 23.35.31.31.11.13 Mechanically Controlled Distribution Switchgear 5 23.35.31.31.11.15 Remote Controlled Distribution Switchgear 5 23.35.31.31.11.17 Time Controlled Distribution Switchgear 5 23.35.31.31.13 Paralleling Switchgear 4 23.35.31.31.13.11 Electronic Controlled Paralleling Switchgear 5 23.35.31.31.13.13 Mechanically Controlled Paralleling Switchgear 5 23.35.31.31.13.15 Remote Controlled Paralleling Switchgear 5 23.35.31.31.13.17 Time Controlled Paralleling Switchgear 5 23.35.31.33 Electrical Busbars 3 23.35.31.33.11 Aluminum Electrical Busbars 4 23.35.31.33.13 Copper Electrical Busbars 4 23.35.31.35 Electrical Feeders 3 23.35.33.00 Electrical Ducting Wireways Components 2 23.35.33.11 Electrical Service Penetrations 3 23.35.33.13 Electrical Conductor Components 3 23.35.33.13.11 Electrical Conductor Rails 4 23.35.33.13.13 Electrical Conductor Couplings 4 23.35.33.13.15 Electrical Conductor Insulation 4 23.35.33.13.17 Electrical Support Wires 4 23.35.33.13.19 Conductor Mechanical Fasteners 4 23.35.33.15 Electrical Junction Boxes 3 23.35.33.15.11 Electrical Ceiling Junction Boxes 4 23.35.33.15.13 Electrical Wall Junction Boxes 4 23.35.33.17 Electrical Conduits 3 23.35.33.17.11 Electrical Cable Reels 4 23.35.33.17.13 Mechanical Fasteners for Conduits 4 23.35.33.17.15 Mechanical Fasteners for Trunking 4 23.35.33.19 Electrical Cable Trays 3 23.35.33.21 Electrical Bus Ducts 3 23.35.33.21.11 Aluminum Electrical Bus Ducts 4 23.35.33.21.13 Copper Electrical Bus Ducts 4 23.35.33.23 Electrical Racks 3 23.35.33.23.11 Horizontal Electrical Racks 4 23.35.33.23.13 Vertical Electrical Racks 4 23.35.33.25 Electrical Wireways 3 23.35.33.25.11 Underfloor Electrical Wireways 4 23.35.33.25.13 Vertical Electrical Wire Raceways 4 23.35.33.25.15 Horizontal Electrical Wire Raceways 4 23.35.33.25.17 Ceiling Grid Electrical Systems 4 23.35.33.25.17.11 Ceiling Grid Electrical Wire Tracks 5 23.35.33.25.17.13 Ceiling Grid Electrical Wire Track Connectors 5 23.35.35.00 Electrical Contactors 2 23.35.37.00 Electrical Switches 2 23.35.37.11 Automatic Transfer Switches 3 23.35.37.11.11 Normal Power Seeking Automatic Transfer Switches 4 23.35.37.11.13 Power Seeking Automatic Transfer Switches 4 23.35.37.13 Manual Transfer Switches 3 23.35.37.15 Barrel Switches 3 23.35.37.15.11 Barrel Key Switches 4 23.35.37.17 Dimmer Control Switches 3 23.35.37.17.11 Lighting Dimmer Rheostats 4 23.35.37.17.12 Ganged Lighting Dimmers 4 23.35.37.17.13 Dimmers 4 23.35.37.19 Disconnect Switches 3 23.35.37.19.11 Fused Disconnect Switches 4 23.35.37.19.13 Non Fused Disconnect Switches 4 23.35.37.21 Drum Switches 3 23.35.37.23 Flow Switches 3 23.35.37.25 Key Lock Switches 3 23.35.37.27 Limit Switches 3 23.35.37.27.11 Level Switches 4 23.35.37.27.13 Reed Switches 4 23.35.37.29 Modular Wiring System Switches 3 23.35.37.31 Photocell Switches 3 23.35.37.33 Pressure Switches 3 23.35.37.33.11 Differential Pressure Switches 4 23.35.37.35 Rocker Switches 3 23.35.37.35.11 Mercury Switches 4 23.35.37.37 Time Switches 3 23.35.37.39 Foot Switches 3 23.35.37.41 Joysticks 3 23.35.37.43 Programmable Logic Control Switches 3 23.35.37.45 Proximity Switches 3 23.35.37.47 Pull Chain Switches 3 23.35.37.49 Push Button Switches 3 23.35.37.51 Radio Frequency Switches 3 23.35.37.53 Rotary Switches 3 23.35.37.55 Slide Switches 3 23.35.37.57 Snap Switches 3 23.35.37.59 Speed Switches 3 23.35.37.61 Tamper Switches 3 23.35.37.63 Temperature Switches 3 23.35.37.65 Vacuum Switches 3 23.35.39.00 Electric Power Protection Devices 2 23.35.39.11 Electrical Grounding Device 3 23.35.39.13 Earth Connection Electrodes 3 23.35.39.13.11 Electrical Ground Plates 4 23.35.39.13.13 Electrical Ground Rods 4 23.35.39.15 Lightning Protection 3 23.35.39.15.11 Lightning Arresters 4 23.35.39.15.13 Lightning Rods 4 23.35.39.17 Surge Protection Devices 3 23.35.41.00 Electrical Isolation Equipment 2 23.35.41.11 Electronic Chokes 3 23.35.41.13 Signal Converters 3 23.35.43.00 Electrical Relays 2 23.35.43.11 Auxiliary Protective Relays 3 23.35.43.13 Control Relays 3 23.35.43.15 Current Differential Relays 3 23.35.43.15.11 Current Differential Solid State Relays 4 23.35.43.17 General Purpose Relays 3 23.35.43.19 Ground Fault Relays 3 23.35.43.19.11 Ground Fault Solid State Relays 4 23.35.43.21 Load Shedding Relays 3 23.35.43.23 Lockout Relays 3 23.35.43.23.11 Automatic Reset Lockout Relays 4 23.35.43.23.13 Manual Reset Lockout Relays 4 23.35.43.25 Mercury Relays 3 23.35.43.27 Over Current Relays 3 23.35.43.27.11 Overcurrent Directional, Induction Disc Relays 4 23.35.43.27.13 Over Current Induction Disc Relays 4 23.35.43.27.15 Over Current Thermal Relays 4 23.35.43.27.17 Over Current Solid State Relays 4 23.35.43.29 Overload Relays 3 23.35.43.29.11 Overload Solid State Relays 4 23.35.43.31 Phase Failure Relays 3 23.35.43.31.11 Phase Failure Solid State Relays 4 23.35.43.33 Power Relays 3 23.35.43.35 Time Relays 3 23.35.43.35.11 Reverse Current Time Relays 4 23.35.43.35.11.11 Reverse Current Solid State Time Relays 5 23.35.43.35.13 Reverse Power Time Relays 4 23.35.43.35.13.11 Reverse Power Solid State Time Relays 5 23.35.43.35.15 Power Factor Time Relays 4 23.35.43.35.15.11 Power Factor Solid State Time Relays 5 23.35.43.37 Voltage Relays 3 23.35.43.37.11 Under Voltage Relays 4 23.35.43.37.11.11 Under Voltage Solid State Relays 5 23.35.43.37.13 Over Voltage Relays 4 23.35.43.37.13.11 Over Voltage Solid State Relays 5 23.35.43.37.15 Over Under Voltage Relays 4 23.35.43.37.15.11 Over Under Voltage Solid State Relays 5 23.35.45.00 Non Electrical Lighting 2 23.35.45.11 Lanterns 3 23.35.45.11.11 Alcohol Lanterns 4 23.35.45.11.13 Butane Lanterns 4 23.35.45.11.15 Kerosene Lanterns 4 23.35.45.11.17 Natural Gas Lanterns 4 23.35.45.11.19 Propane Lanterns 4 23.35.45.13 Torches 3 23.35.45.13.11 Alcohol Torches 4 23.35.45.13.13 Butane Torches 4 23.35.45.13.15 Kerosene Torches 4 23.35.45.13.17 Natural Gas Torches 4 23.35.45.13.19 Propane Torches 4 23.35.45.15 Lamps 3 23.35.45.15.11 Alcohol Lamps 4 23.35.45.15.13 Butane Lamps 4 23.35.45.15.15 Kerosene Lamps 4 23.35.45.15.17 Natural Gas Lamps 4 23.35.45.15.19 Propane Lamps 4 23.35.45.17 Solar Tubes 3 23.35.45.19 Strobe Light Fixtures 3 23.35.47.00 Electrical Lighting 2 23.35.47.11 Lighting Fixtures 3 23.35.47.11.11 Non Weather Rated Lighting Fixtures 4 23.35.47.11.11.11 Non Weather Rated Fluorescent Lighting Fixtures 5 23.35.47.11.11.13 Non Weather Rated Halogen Lighting Fixtures 5 23.35.47.11.11.15 Non Weather Rated High Intensity Discharge Lighting Fixtures 5 23.35.47.11.11.17 Non Weather Rated Incandescent Lighting Fixtures 5 23.35.47.11.11.19 Non Weather Rated Light Emitting Diode Lighting Fixtures 5 23.35.47.11.13 Submersible Lighting Fixtures 4 23.35.47.11.13.11 Submersible Fluorescent Lighting Fixtures 5 23.35.47.11.13.13 Submersible Halogen Lighting Fixtures 5 23.35.47.11.13.15 Submersible High Intensity Discharge Lighting Fixtures 5 23.35.47.11.13.17 Submersible Incandescent Lighting Fixtures 5 23.35.47.11.13.19 Submersible Light Emitting Diode Lighting Fixtures 5 23.35.47.11.15 Weather Rated Lighting Fixtures 4 23.35.47.11.15.11 Weather Rated Fluorescent Lighting Fixtures 5 23.35.47.11.15.13 Weather Rated Halogen Lighting Fixtures 5 23.35.47.11.15.15 Weather Rated High Intensity Discharge Lighting Fixtures 5 23.35.47.11.15.17 Weather Rated Incandescent Lighting Fixtures 5 23.35.47.11.15.19 Weather Rated Light Emitting Diode Lighting Fixtures 5 23.35.47.11.17 Chandelier 4 23.35.47.11.18 Explosion Proof Lighting Fixtures 4 23.35.47.11.18.11 Explosion Proof Fluorescent Lighting Fixtures 5 23.35.47.11.18.13 Explosion Proof Halogen Lighting Fixtures 5 23.35.47.11.18.15 Explosion Proof High Intensity Discharge Lighting Fixtures 5 23.35.47.11.18.17 Explosion Proof Incandescent Lighting Fixtures 5 23.35.47.11.18.19 Explosion Proof Light Emitting Diode Lighting Fixtures 5 23.35.47.11.19 Hazardous Lighting Fixtures 4 23.35.47.11.19.11 Hazardous Fluorescent Lighting Fixtures 5 23.35.47.11.19.13 Hazardous Halogen Lighting Fixtures 5 23.35.47.11.19.15 Hazardous High Intensity Discharge Lighting Fixtures 5 23.35.47.11.19.17 Hazardous Incandescent Lighting Fixtures 5 23.35.47.11.19.19 Hazardous Light Emitting Diode Lighting Fixtures 5 23.35.47.11.20 Security Lighting Fixtures 4 23.35.47.11.21 Specialized Lighting Fixtures 4 23.35.47.11.21.11 Lighting Bollards 5 23.35.47.11.21.13 Lighting Poles 5 23.35.47.11.21.15 Lighting Posts 5 23.35.47.11.21.17 Buried Uplights 5 23.35.47.11.21.19 Floodlight Fixtures 5 23.35.47.11.21.21 Spotlight Fixtures 5 23.35.47.11.21.21.11 Focus Spotlight Fixture 6 23.35.47.11.21.21.13 Follow Spotlight Fixture 6 23.35.47.11.21.21.15 Spotlight Bank Fixture 6 23.35.47.11.21.21.17 Pin Spotlight Fixture 6 23.35.47.11.21.23 Street and Roadway Lighting Fixtures 5 23.35.47.11.21.25 Aircraft Paving Lighting Fixtures 5 23.35.47.13 Emergency Lighting 3 23.35.47.13.11 Hard Wired Emergency Lighting 4 23.35.47.13.13 Emergency Lighting With Battery Backup 4 23.35.47.13.15 Passive Emergency Lighting Strips 4 23.35.47.13.17 Emergency Lighting Strobe 4 23.35.47.15 Exit Illuminated Signs 3 23.35.47.15.11 Battery Backup Exit Illuminated Signs 4 23.35.47.15.13 Hard Wired Backup Exit Illuminated Signs 4 23.35.47.15.15 Self Illuminated Exit Illuminated Signs 4 23.35.47.17 Fiber Optic Lighting 3 23.35.47.19 Communication Lighting Specialties 3 23.35.47.19.11 Illuminated Signs Boards 4 23.35.47.21 Accessories for Lighting 3 23.35.47.21.11 Lampholders 4 23.35.47.21.13 Lighting Diffusers 4 23.35.47.21.15 Lighting Ballasts 4 23.35.47.21.17 Lighting Tracks 4 23.35.47.21.19 Lampshades 4 23.35.47.23 Lamps 3 23.35.47.23.11 Halogen Lamps 4 23.35.47.23.13 Incandescent Lamps 4 23.35.47.23.15 Discharge Lamps 4 23.35.47.23.15.11 Fluorescent Lamps 5 23.35.47.23.15.13 Compact Fluorescent Lamps 5 23.35.47.23.15.15 Sodium Vapor Lamps 5 23.35.47.23.15.17 High Pressure Discharge Lamps 5 23.35.47.23.17 Light Emitting Diode Lamps 4 23.37.00.00 Information and Communication Specific Products and Equipment 1 23.37.11.00 Information Technology and Telecommunications Ducting Wireways Components 2 23.37.11.11 Communication Service Penetrations 3 23.37.11.13 Communication Cable Trays 3 23.37.11.15 Communication Racks 3 23.37.11.15.11 Information Technology Racks 4 23.37.11.15.13 Telephone Racks 4 23.37.11.15.15 Fiber Optic Equipment 4 23.37.11.15.15.11 Fiber Optic Cabinets 5 23.37.11.15.15.13 Fiber Adapter Panels 5 23.37.11.17 Communication Wireways 3 23.37.11.17.11 Information Technology Wireways 4 23.37.11.17.11.11 Underfloor Information Technology Wireways 5 23.37.11.17.11.13 Vertical Information Technology Wire Raceways 5 23.37.11.17.11.15 Horizontal Information Technology Wire Raceways 5 23.37.11.17.13 Telecommunications Wireways 4 23.37.11.17.13.11 Underfloor Telecommunications Wireways 5 23.37.11.17.13.13 Vertical Telecommunications Wire Raceways 5 23.37.11.17.13.15 Horizontal Telecommunications Wire Raceways 5 23.37.11.17.15 Complete Visual Signaling 4 23.37.11.17.15.11 Mechanical Signal Equipment 5 23.37.13.00 Information Technology Equipment 2 23.37.13.11 Personal Computer Equipment 3 23.37.13.11.11 Desktop Personal Computers 4 23.37.13.11.13 Laptop Personal Computers 4 23.37.13.11.15 Tablet Personal Computers 4 23.37.13.11.17 Tower Stack Personal Computers 4 23.37.13.11.19 Workstation Personal Computers 4 23.37.13.11.21 Personal Digital Assistants 4 23.37.13.11.23 Internal Computing Components 4 23.37.13.11.23.11 Computer Processing Units 5 23.37.13.11.23.13 Computer Controller Cards 5 23.37.13.11.23.15 Computer Memory Cards 5 23.37.13.11.23.17 Personal Computer Modem Cards 5 23.37.13.11.23.19 Personal Computer Network Interface Cards 5 23.37.13.11.23.21 Personal Computer Video Cards 5 23.37.13.13 Personal Computer and Network Security Devices 3 23.37.13.13.11 Computer Firewalls 4 23.37.13.13.13 Computer Intrusion Detection Devices 4 23.37.13.13.15 Computer Intrusion Protection Devices 4 23.37.13.15 Local Area Network Devices 3 23.37.13.15.11 Local Area Network Bridges 4 23.37.13.15.13 Local Area Network Communication Hardware 4 23.37.13.15.15 Local Area Network Disk Drives 4 23.37.13.15.17 Local Area Network Hubs 4 23.37.13.15.19 Local Area Network Load Balancers 4 23.37.13.15.21 Local Area Network Routers 4 23.37.13.15.23 Local Area Network Servers 4 23.37.13.15.25 Local Area Network Switches 4 23.37.13.15.27 Local Area Network Tape Drives 4 23.37.13.15.29 Local Area Network Wireless Devices 4 23.37.13.17 Wide Area Network Devices 3 23.37.13.17.11 Wide Area Network Bridges 4 23.37.13.17.13 Wide Area Network Communication Hardware 4 23.37.13.17.15 Wide Area Network Disk Drives 4 23.37.13.17.17 Wide Area Network Hubs 4 23.37.13.17.19 Wide Area Network Load Balancers 4 23.37.13.17.21 Wide Area Network Routers 4 23.37.13.17.23 Wide Area Network Servers 4 23.37.13.17.25 Wide Area Network Switches 4 23.37.13.17.27 Wide Area Network Tape Drives 4 23.37.13.17.29 Wide Area Network Wireless Devices 4 23.37.13.19 Computer Storage Devices 3 23.37.13.19.11 Computer Optic Drives 4 23.37.13.19.11.11 Compact Disk Drives 5 23.37.13.19.11.13 Digital Video Disc Drives 5 23.37.13.19.11.15 Combination Compact Disk and Digital Video Disc Drives 5 23.37.13.19.13 Hard Disk Drives 4 23.37.13.19.15 Flash Memory Drives 4 23.37.13.19.17 Computer Tape Drives 4 23.37.13.21 Computer Monitors 3 23.37.13.21.11 Computer Liquid Crystal Display Monitors 4 23.37.13.21.13 Computer Catho Ray Tube Monitors 4 23.37.13.23 Computer Printers 3 23.37.13.23.11 Computer Laser Printers 4 23.37.13.23.13 Computer Inkjet Printers 4 23.37.13.23.15 Computer Plotter Printers 4 23.37.13.25 Computer Scanners 3 23.37.13.27 Computer Video Conferencing Equipment 3 23.37.15.00 Audio Visual Equipment 2 23.37.15.11 Cameras 3 23.37.15.11.11 Analog Cameras 4 23.37.15.11.13 Digital Cameras 4 23.37.15.13 Camera Recorders 3 23.37.15.13.11 Digital Camcorders 4 23.37.15.13.13 Film Camcorders 4 23.37.15.15 Digital Music Players 3 23.37.15.17 Projection Equipment 3 23.37.15.17.11 Projection Screens 4 23.37.15.17.13 Projection Screen Stands 4 23.37.15.19 Video Projectors 3 23.37.15.19.11 Video Slide Projectors 4 23.37.15.19.13 Video Overhead Projectors 4 23.37.15.19.15 Video Film Projectors 4 23.37.15.19.17 Video Slide Projectors 4 23.37.15.19.19 Video Digital Projectors 4 23.37.15.21 Audio Visual Recorders 3 23.37.15.21.11 Audio Recorders 4 23.37.15.21.13 Video Recorders 4 23.37.15.21.15 Audio Video Recorders 4 23.37.15.23 Stereo Equipment 3 23.37.15.23.11 Stereo Amplifiers 4 23.37.15.23.13 Stereo Patch Panels 4 23.37.15.23.15 Stereo Speakers 4 23.37.15.25 Televisions 3 23.37.15.25.11 Cathoray Tube Televisions 4 23.37.15.25.13 Liquid Crystal Display Televisions 4 23.37.15.25.15 Plasma Display Televisions 4 23.37.15.25.17 Projection Screen Televisions 4 23.37.15.25.19 Television Mounts 4 23.37.15.27 Video Recording Equipment 3 23.37.15.29 Audio Equipment 3 23.37.15.29.11 Sound Reinforcement Equipment 4 23.37.15.29.11.11 Microphones 5 23.37.15.29.11.13 Loudspeakers 5 23.37.15.29.11.15 Sound Amplifiers 5 23.37.15.29.11.17 Audio Equalizers 5 23.37.15.29.13 Headphones 4 23.37.15.29.15 Audio Reproducing Units 4 23.37.17.00 Audio Information Equipment 2 23.37.17.11 Sound Devices 3 23.37.17.13 Signal Devices 3 23.37.17.13.11 Bells 4 23.37.17.13.13 Carillons 4 23.37.17.13.15 Sirens 4 23.37.17.13.17 Aerials 4 23.37.17.13.19 Speakers 4 23.37.17.15 Public Address Equipment 3 23.37.19.00 Visual Information Systems 2 23.37.19.11 Cathode Ray Tube (CRT) Video Monitors 3 23.37.19.13 Liquid Crystal Display (LCD) Video Monitors 3 23.37.19.15 Plasma Video Monitors 3 23.37.19.17 Video Walls 3 23.37.21.00 Audio Visual Systems 2 23.37.21.11 Broadcasting Receiving Equipment 3 23.37.21.13 Film Projectors 3 23.37.21.15 Data Multi Media Projectors 3 23.37.21.17 Video Reproduction 3 23.37.23.00 Telecommunications Equipment 2 23.37.23.11 Wireless Phone Equipment 3 23.37.23.11.11 Wireless Phones 4 23.37.23.11.13 Wireless Phone Chargers 4 23.37.23.13 Telephones 3 23.37.23.13.11 Single Line Telephones 4 23.37.23.13.13 Multiple Line Telephones 4 23.37.23.15 Telephone Equipment 3 23.37.23.15.11 Private Branch Exchanges 4 23.37.23.15.13 Telephone Patch Panels 4 23.37.23.17 Intercom Equipment 3 23.37.23.17.11 Intercoms 4 23.37.23.17.13 Door Entry Telephones 4 23.37.23.19 Radio Broadcast Equipment 3 23.37.23.19.11 Radio Booths 4 23.37.23.19.11.11 Radio Broadcast Booths 5 23.37.23.19.11.13 Radio Recording Booths 5 23.37.23.19.13 Radio Broadcast Transmitters 4 23.37.23.19.15 Radio Broadcast Receivers 4 23.37.23.19.17 Radio Communication Base Stations 4 23.37.23.19.19 Radio Communication Call Microphones 4 23.37.23.19.21 Radio Broadcast Transmission Towers 4 23.37.23.21 Radio Communication Equipment 3 23.37.23.21.11 Infra Red Radio Communication Equipment 4 23.37.23.21.11.11 Infra Red Radio Communication Receivers 5 23.37.23.21.11.13 Infra Red Radio Communication Transmitters 5 23.37.23.21.11.15 Infra Red Radio Communication Transmitter Receivers 5 23.37.23.21.13 Satellite Radio Communication Equipment 4 23.37.23.21.13.11 Satellite Radio Communication Transmitters 5 23.37.23.21.13.13 Satellite Radio Communication Transmitter Receivers 5 23.37.23.21.13.15 Satellite Radio Communications Receivers 5 23.37.23.21.15 Wireless Radio Communication Equipment 4 23.37.23.21.15.11 Wireless Radio Communication Receivers 5 23.37.23.21.15.13 Wireless Radio Communication Transmitters 5 23.37.23.21.15.15 Wireless Radio Communication Transmitter Receivers 5 23.37.23.21.17 Radio Communication Antenna Towers 4 23.37.23.21.19 Radio Communication Transmission Towers 4 23.37.23.23 Satellite Communication Equipment 3 23.37.23.23.11 Satellite Communication Dishes 4 23.37.25.00 Broadcasting Communications Equipment 2 23.37.25.11 Broadcasting Communication Circuits 3 23.37.25.13 Broadcasting Intercommunication Equipment 3 23.37.25.15 Broadcasting Communication and Data Processing Equipment 3 23.37.25.17 Broadcasting Cable Transmission and Reception Equipment 3 23.37.25.17.11 Broadcasting Cable Transmission and Reception Amplifiers 4 23.37.25.17.13 Broadcasting Cable Transmission and Reception Modulators 4 23.37.25.17.15 Broadcasting Cable Transmission and Reception Control Equipment 4 23.37.25.19 Broadcast Transmission and Reception Equipment 3 23.37.25.19.11 Broadcast Transmitters 4 23.37.25.19.13 Broadcast Antennas 4 23.37.25.19.15 Broadcast Amplifiers 4 23.37.25.19.17 Broadcast Control Equipment 4 23.37.25.21 Broadcasting Microwave Transmission and Reception Equipment 3 23.37.25.21.11 Broadcasting Microwave Transmitters 4 23.37.25.21.13 Broadcasting Microwave Antennas 4 23.37.25.21.15 Broadcasting Satellite Dishes 4 23.37.25.21.17 Broadcasting Microwave Amplifiers 4 23.37.25.21.19 Broadcasting Microwave Receivers 4 23.37.25.23 Broadcasting Equipment 3 23.37.25.23.11 Television Broadcasting Equipment 4 23.37.25.23.13 Multimedia Broadcasting Equipment 4 23.37.25.23.15 Broadcasting Light Signals 4 23.37.27.00 Emergency Communications 2 23.37.27.11 Duress Notification Devices 3 23.37.27.13 Mass Notification Systems 3 23.37.27.13.11 Emergency Notification Devices 4 23.37.27.13.13 Imminent Danger Notification Devices 4 23.37.27.15 Intercoms 3 23.37.27.15.11 Audio Intercoms 4 23.37.27.15.13 Audio Visual Intercoms 4 23.37.27.17 Emergency Call Equipment 3 23.37.27.17.11 Call Systems for the Disabled 4 23.37.27.17.13 Nurse Call Equipment 4 23.39.00.00 Utility and Transportation Products 1 23.39.11.00 Roadway Monitoring and Control 2 23.39.11.11 Traffic Safety Barriers and Protections 3 23.39.11.11.11 Safety Barriers 4 23.39.11.11.11.11 Crash Barriers ( including Impact Attenuating Devices) 5 23.39.11.11.11.13 Median Barriers 5 23.39.11.11.11.15 Guardrails 5 23.39.11.11.13 Noise Barriers 4 23.39.11.11.15 Traffic Barriers 4 23.39.11.11.15.11 Traffic Delineators 5 23.39.11.11.17 Traffic Control 4 23.39.11.11.17.11 Traffic Speed Bumps 5 23.39.11.11.19 Roadway Curbs 4 23.39.11.11.21 Roadway Gutters 4 23.39.11.11.23 Roadway Cattle Guards 4 23.39.11.13 Roadway Signage 3 23.39.11.15 Roadway Markers 3 23.39.11.15.11 Roadway Surface Markings 4 23.39.11.15.13 Roadway Reflectors 4 23.39.11.15.15 Traffic Cones 4 23.39.11.15.17 Traffic Signals 4 23.39.11.15.19 Traffic Monitoring Equipment 4 23.39.11.15.21 Roadway Mirrors 4 23.39.11.15.23 Traffic Cameras 4 23.39.11.15.25 Traffic Detectors and Sensors 4 23.39.11.17 Vehicle Control Barriers 3 23.39.11.17.11 Anti Ram Planters 4 23.39.11.17.13 Jersey Barriers 4 23.39.11.17.15 Active Tire Shredders 4 23.39.11.17.17 Passive Tire Shredders 4 23.39.11.19 Bollards 3 23.39.11.19.11 Active Anti Ram Bollards 4 23.39.11.19.13 Passive Anti Ram Bollards 4 23.39.11.19.15 Architectural Bollards 4 23.39.13.00 Tunnels and Bridges 2 23.39.13.11 Tunnels 3 23.39.13.11.11 Tunnel Shafts 4 23.39.13.11.13 Tunnel Segments 4 23.39.13.11.15 Tunnel Linings 4 23.39.13.11.17 Tunnel Grouting 4 23.39.13.11.17.11 Earth Stabilization Chemical Grouting 5 23.39.13.11.17.13 Rock Seam Pressure Grouting 5 23.39.13.11.17.15 Tunnel Liner Grouting 5 23.39.13.11.19 Microtunneling 4 23.39.13.13 Bridges 3 23.39.13.13.11 Prefabricated Bridges 4 23.39.13.13.13 Bridge Beams 4 23.39.13.13.15 Bridge Trusses 4 23.39.13.13.17 Bridge Cable 4 23.39.13.13.19 Bridge Bearings 4 23.39.13.13.19.11 Fixed Bridge Bearings 5 23.39.13.13.19.13 Expansion Bridge Bearings 5 23.39.13.13.19.15 Multi Rotational Bridge Bearings 5 23.39.13.13.21 Bridge Movable Mechanism 4 23.39.13.13.23 Bridge Decking 4 23.39.13.13.25 Bridge Drainage 4 23.39.13.13.27 Bridge Safety Barriers 4 23.39.13.13.27.11 Shock Absorbers 5 23.39.13.13.27.13 Bridge Parapets 5 23.39.13.13.27.15 Bridge Railings 5 23.39.13.13.29 Bridge Expansion Joints 4 23.39.13.13.29.11 Bridge Expansion Joint Assemblies 5 23.39.15.00 Railways 2 23.39.15.11 Railway Track Equipment 3 23.39.15.11.11 Railway Ties 4 23.39.15.11.11.11 Railway Concrete Ties 5 23.39.15.11.11.13 Railway Wood Ties 5 23.39.15.11.13 Railway Rails 4 23.39.15.11.15 Railway Turnouts 4 23.39.15.11.17 Railway Bumpers 4 23.39.15.13 Railway Platform Components 3 23.39.15.15 Railway Electrification Equipment 3 23.39.15.15.11 Railway Surge Arresters 4 23.39.15.15.13 Railway Traction Lines 4 23.39.15.15.13.11 Railway Traction Line Pylons 5 23.39.15.17 Railway Monitoring and Control 3 23.39.15.17.11 Railway Signaling Devices 4 23.39.15.17.13 Railway Control Instrumentation 4 23.39.15.19 Railway Locomotives 3 23.39.15.19.11 Railway Diesel Locomotives 4 23.39.15.19.13 Railway Electric Locomotives 4 23.39.15.21 Railway Cars 3 23.39.15.21.11 Railway Passenger Cars 4 23.39.15.21.13 Railway Sleeper Cars 4 23.39.15.21.15 Railway Baggage Cars 4 23.39.15.21.17 Railway Diner Cars 4 23.39.15.21.19 Railway Freight Cars 4 23.39.15.21.19.11 Railway Box Cars 5 23.39.15.21.19.13 Railway Coal Cars 5 23.39.15.21.19.15 Railway Vehicle Carrier Cars 5 23.39.15.21.21 Railway Tanker Cars 4 23.39.15.21.23 Railway Car Equipment 4 23.39.15.21.23.11 Railway Car Bumpers 5 23.39.15.21.23.13 Railway Car Electrical Connectors 5 23.39.17.00 Funiculars 2 23.39.17.11 Cable Trams 3 23.39.17.13 Cable Cars 3 23.39.17.15 Funicular Cable Rails 3 23.39.17.17 Funicular Cables 3 23.39.17.19 Aerial Tramways 3 23.39.17.21 Chair Lifts 3 23.39.17.23 Ski Lifts 3 23.39.17.23.11 Ski Pole Lifts 4 23.39.17.23.13 Ski Chair Lifts 4 23.39.19.00 Aviation Equipment 2 23.39.19.11 Aviation Monitoring and Control 3 23.39.19.11.11 Approach Indication Equipment 4 23.39.19.11.13 Aviation Monitoring Equipment 4 23.39.19.11.13.11 Aviation Windsocks 5 23.39.19.13 Aviation Barriers 3 23.39.19.13.11 Jet Blast Barriers 4 23.39.19.13.13 Aviation Sound Barriers 4 23.39.21.00 Marine Construction Waterways and Seaways 2 23.39.21.11 Navigation Facilities 3 23.39.21.11.11 Components 4 23.39.21.11.11.11 Mooring Posts 5 23.39.21.11.11.13 Boat Fenders 5 23.39.21.11.13 Canal Locks 4 23.39.21.11.13.11 Canal Lock Gates 5 23.39.21.11.13.11.11 Canal Hydraulic Gates 6 23.39.21.11.13.11.13 Canal High Pressure Gates 6 23.39.21.11.13.11.15 Canal Hinged Leaf Gates 6 23.39.21.11.13.11.17 Canal Radial Gates 6 23.39.21.11.13.11.19 Canal Slide Gates 6 23.39.21.11.13.11.21 Canal Sluice Gates 6 23.39.21.11.13.11.23 Canal Spillway Crest Gates 6 23.39.21.11.13.11.25 Canal Vertical Lift Gates 6 23.39.21.11.13.13 Canal Hydraulic Valves 5 23.39.21.11.13.13.11 Canal Butterfly Valves 6 23.39.21.11.13.13.13 Canal Regulating Valves 6 23.39.21.11.15 Piers and Docks 4 23.39.21.11.15.11 Floating Docks 5 23.39.21.11.15.13 Dock Loading Ramps 5 23.39.21.11.17 Pontoons 4 23.39.21.11.19 Jetties 4 23.39.21.13 Waterflow Controls 3 23.39.21.13.11 Reservoirs 4 23.39.21.13.13 Dams, Dikes 4 23.39.21.13.15 Weirs 4 23.39.21.13.17 Barrages 4 23.39.21.13.19 Bifurcation Panels 4 23.39.21.13.21 Manifolds 4 23.39.21.13.23 Penstocks and Sluice Gate 4 23.39.21.13.25 Trash Rakes 4 23.39.21.15 Breakwater Products 3 23.39.21.15.11 Bulkheads 4 23.39.21.15.13 Seawalls 4 23.39.21.15.15 Moles and Breakwater 4 23.39.21.15.17 Groins 4 23.39.21.17 Marine Monitoring and Control 3 23.39.21.17.11 Navigation Signs 4 23.39.21.17.13 Navigation Lights 4 23.39.21.17.15 Navigation Monitoring Equipment 4 23.39.23.00 Electrical Utility Equipment 2 23.39.23.11 Electrical Transmission Equipment 3 23.39.23.11.11 Electrical Utility Poles 4 23.39.23.11.13 Electrical Utility Towers 4 23.39.25.00 Natural Gas Utility Equipment 2 23.39.25.11 Natural Gas Utility Pipeline Equipment 3 23.39.27.00 Water Utility Equipment 2 23.39.27.11 Water Utility Pipeline Equipment 3 23.39.29.00 Waste Water Collection and Removal 2 23.39.29.11 Waste Water Drains 3 23.39.29.11.11 Waste Water French Drains 4 23.39.29.11.13 Waste Water Storm Drain 4 23.39.29.11.13.11 Manhole (Goes in Prefab Concrete) 5 23.39.29.11.13.13 Manhole Cover 5 23.39.29.11.13.15 Manhole Ladder 5 23.39.29.11.13.17 Manhole Rung 5 23.39.29.11.15 Waste Water Drainage Pipes, Couplings, Collectors 4 23.39.29.11.17 Wastewater Pipework Access Fittings 4 23.39.29.13 Waste Water Subdrainage 3 23.39.29.13.11 Geocomposite Drains 4 23.39.29.13.13 Geotextile Subsurface Drainage Filtration 4 23.39.29.13.15 Pipe Underdrain and Pavement Base Drain 4 23.39.29.13.17 Subgrade Drains 4 23.39.29.13.19 Surface Water Drainage Systems 4 23.39.29.13.19.11 Surface Water Catch Basins, Grates, and Frames 5 23.39.29.13.19.13 Combination Storm Drain and Underdrain Inlets 5 23.39.29.13.19.15 Storm Drainage Manholes, Frames, and Covers 5 23.39.29.13.19.17 Surface Water Retention Chambers 5 23.39.29.13.2.19 Surface Water Retention Basins 5 23.39.29.13.21 Storm Water Ponds and Reservoirs 4 23.39.29.13.21.21 Storm Water Pond Covers 5 23.39.29.13.21.9.23 Storm Water Pond Liners 5 23.39.29.15 Waste Water Channels, Gullies, Gratings, Covers 3 23.39.31.00 Packaged Waste Water Treatment 2 23.39.31.11 Packaged Stations 3 23.39.31.11.11 Packaged Pumping Stations 4 23.39.31.11.13 Packaged Lift Stations 4 23.39.31.13 Packaged Sewage Treatment Plants 3 23.39.33.00 Water and Waste Water Preliminary Treatment Equipment 2 23.39.33.11 Screening Equipment 3 23.39.33.11.11 Climber-type Bar Screens 4 23.39.33.11.13 Chain-and-Rage Bar Screens 4 23.39.33.11.15 Flexible Rake Bar Screens 4 23.39.33.11.17 Catenary Bar Screens 4 23.39.33.11.19 Continuous Belt Screens 4 23.39.33.11.21 Cylindrical Bar Screens 4 23.39.33.11.23 Step Screens 4 23.39.33.11.25 Rotary Drum Screens 4 23.39.33.11.27 Spiral Screens 4 23.39.33.11.29 Band Screens 4 23.39.33.11.31 Disc Screens 4 23.39.33.11.33 Traveling Screens 4 23.39.33.11.35 Perforated Plate Screens 4 23.39.33.11.37 Wedge Wire Screens 4 23.39.33.11.39 Element Screens 4 23.39.33.11.41 Trash Raking Equipment 4 23.39.33.11.43 Screenings Washing and Compacting Equipment 4 23.39.33.11.45 Vacuum Screenings Conveying Equipment 4 23.39.33.11.47 Screenings Storage Containers 4 23.39.33.11.49 Septage Receiving Equipment 4 23.39.33.13 Grit Removal and Handling Equipment 3 23.39.33.13.11 Chain-and-Bucket Grit Removal Equipment 4 23.39.33.13.13 Chain-and-Flight Grit Removal Equipment 4 23.39.33.13.15 Vortex Grit Removal Equipment 4 23.39.33.13.17 Cyclone Degritters 4 23.39.33.13.19 Aerated Grit Removal Equipment 4 23.39.33.13.21 Inline Baffled Grit Removal Equipment 4 23.39.33.13.23 Traveling Bridge Grit Removal Equipment 4 23.39.33.13.25 Grit Classifying and Washing Equipment 4 23.39.33.13.27 Grit Storage Containers 4 23.39.33.15 Grinding and Shredding Equipment 3 23.39.33.15.11 Macerators 4 23.39.33.15.13 Comminutors 4 23.39.33.15.15 Inline Grinders 4 23.39.33.15.17 Open-Channel Grinders 4 23.39.33.15.19 Modular Grinding-Screening-Compacting Equipment 4 23.39.33.17 Oil and Grease Separation and Removal Equipment 3 23.39.33.17.11 Coalescing Oil-Water Separators 4 23.39.33.17.13 API Oil-Water Separators 4 23.39.33.17.15 Grease Traps 4 23.39.33.17.17 Dissolved Air Flotation Grease and Oil Separation Equipment 4 23.39.33.17.19 Helical Scum Skimming and Removal Equipment 4 23.39.33.17.21 Tipping Trough Scum Skimming and Removal Equipment 4 23.39.33.17.23 Chain and Flight Scum Collection and Removal Equipment 4 23.39.33.17.25 Floating Scum Skimming and Removal Equipment 4 23.39.35.00 Water and Wastewater Chemical Feed Equipment 2 23.39.35.11 Gas Chemical Feed Equipment 3 23.39.35.11.11 Chlorine Gas Feed Equipment 4 23.39.35.11.13 Sulfur Dioxide Gas Feed Equipment 4 23.39.35.11.15 Ammonia Gas Feed Equipment 4 23.39.35.11.17 Gas Storage, Weighing, and Leak Detection Equipment 4 23.39.35.11.19 Chlorine Dioxide Reactors 4 23.39.35.11.21 Carbon Dioxide Gas Feed Equipment 4 23.39.35.11.23 Ozone Generating and Feed Equipment 4 23.39.35.11.25 Liquid Oxygen Storage and Feed Equipment 4 23.39.35.11.27 Cleaning Requirements for Oxygen Service 4 23.39.35.11.29 Gas Chemical Feed Accessories and Safety Equipment 4 23.39.35.13 Liquid Chemical Feed Equipment 3 23.39.35.13.11 Sodium Hypochlorite Generating Equipment 4 23.39.35.13.13 Liquid Chemical Weighing Equipment 4 23.39.35.13.15 Polymer Blending and Feed Equipment 4 23.39.35.13.17 Diaphragm-type Metering Pumps 4 23.39.35.13.19 Peristaltic Metering Pumps 4 23.39.35.13.21 Progressing Cavity Metering Pumps 4 23.39.35.13.23 Lobe Metering Pumps 4 23.39.35.13.25 Drum Pumps 4 23.39.35.13.27 Liquid Chemical Transfer Pumps 4 23.39.35.13.29 Liquid Chemical Diffusers 4 23.39.35.13.31 Liquid Chemical Feed Accessories and Safety Equipment 4 23.39.35.15 Dry Chemical Feed Equipment 3 23.39.35.15.11 Storage Silos 4 23.39.35.15.13 Dry Chemical Weighing Equipment 4 23.39.35.15.15 Volumetric Feed Equipment 4 23.39.35.15.17 Gravimetric Feed Equipment 4 23.39.35.15.19 Lime Slaking Equipment 4 23.39.35.15.21 Chemical Tablet Feeding Equipment 4 23.39.35.15.23 Dry Chemical Feed Accessories and Safety Equipment 4 23.39.37.00 Water and Wastewater Clarification and Mixing Equipment 2 23.39.37.11 Mixing Equipment 3 23.39.37.11.11 Rapid Mixers 4 23.39.37.11.13 Inline Blender-type Rapid Mixers 4 23.39.37.11.15 Induction-type Rapid Mixing Equipment 4 23.39.37.11.17 Inline Static Mixers 4 23.39.37.11.19 Mixing Equipment 4 23.39.37.11.21 Submersible Mixers 4 23.39.37.11.23 Floating Mechanical Mixers 4 23.39.37.11.25 Paddle Mixers 4 23.39.37.11.27 Pin Mixers 4 23.39.37.11.29 Vertical Reel Flocculation Equipment 4 23.39.37.11.31 Horizontal Reel Flocculation Equipment 4 23.39.37.11.33 Vertical Turbine Flocculation Equipment 4 23.39.37.11.35 Walking-beam Flocculation Equipment 4 23.39.37.11.37 Horizontal Oscillating Flocculation Equipment 4 23.39.37.11.39 Top-entering Tank Mixers 4 23.39.37.11.41 Side-entry Tank Mixers 4 23.39.37.11.43 Portable Tank Mixers 4 23.39.37.13 Clarifier Equipment 3 23.39.37.13.11 Chain-and-Flight Clarifier Equipment 4 23.39.37.13.13 Traveling Bridge Clarifier Equipment 4 23.39.37.13.15 Differential Head Clarifier Equipment 4 23.39.37.13.17 Oscillating Scraper-type Clarifier Equipment 4 23.39.37.13.19 Circular Clarifier Equipment 4 23.39.37.13.21 Solids Contact Clarifier Equipment 4 23.39.37.13.23 Flocculating Clarifier, Pulsating Sludge Blanket Type 4 23.39.37.13.25 Dissolved Air Flotation Equipment for Water Treatment 4 23.39.37.13.27 Ballasted High-rate Clarifier Equipment 4 23.39.37.13.29 High rate Clarification/Thickening Equipment 4 23.39.37.13.31 Tube Settlers 4 23.39.37.13.33 Lined Plate Settlers 4 23.39.37.15 Sediment Removal Equipment 3 23.39.37.15.11 Tipping Sediment Flushing Tanks 4 23.39.37.15.13 Flushing Gates 4 23.39.37.15.15 Water Cannon 4 23.39.39.00 Water and Wastewater Secondary Treatment Equipment 2 23.39.39.11 Air and Gas Diffusion Equipment 3 23.39.39.11.11 Fixed Mechanical Aerators 4 23.39.39.11.13 Floating Mechanical Aerators 4 23.39.39.11.15 Submersible Aspirating Aerator Equipment 4 23.39.39.11.17 Jet Aeration Equipment 4 23.39.39.11.19 Coarse Bubble Diffusers 4 23.39.39.11.21 Swing-type Channel Aeration Equipment 4 23.39.39.11.23 Shear Box Diffusers 4 23.39.39.11.25 Flexible Membrane Tube Diffusers 4 23.39.39.11.27 Flexible Membrane Disc Diffusers 4 23.39.39.11.29 Ceramic Disc Fine Bubble Diffusers 4 23.39.39.11.31 Floating Membrane Diffusers 4 23.39.39.11.33 Membrane Diffusers 4 23.39.39.11.35 Cascading Aerators 4 23.39.39.11.37 Pure-oxygen Generating Equipment 4 23.39.39.13 Biological Treatment Systems 3 23.39.39.13.11 Rotating Biological Contactors 4 23.39.39.13.13 Trickling Filter Rotary Distributor Equipment 4 23.39.39.13.15 Trickling Filter Media 4 23.39.39.13.17 Bio-towers 4 23.39.39.13.19 Moving-bed Biological Reactors 4 23.39.39.13.21 Integrated Fixed-film Activated Sludge Equipment 4 23.39.39.13.23 Intermittent Sand Filters for Wastewater Treatment 4 23.39.39.13.25 Deep-bed Denitrification Filters 4 23.39.39.13.27 Biologically Activated Filters 4 23.39.39.13.29 Membrane Biological Reactors 4 23.39.39.13.31 Sequencing Batch Reactors 4 23.39.39.13.33 Oxidation Ditch Equipment 4 23.39.39.13.35 Vertical Loop Reactors 4 23.39.41.00 Water and Wastewater Advanced Treatment Equipment 2 23.39.41.11 Filtration Equipment 3 23.39.41.11.11 Filter Media 4 23.39.41.11.13 Filter Surface Wash Agitators 4 23.39.41.11.15 Filter Air Scour Equipment 4 23.39.41.11.17 Wash Water Troughs 4 23.39.41.11.19 Pressure Filters 4 23.39.41.11.21 Gravity Filters 4 23.39.41.11.23 High-rate Sand Filters 4 23.39.41.11.25 Traveling Bridge Filters 4 23.39.41.11.27 Microfiltration and Ultrafiltration Membrane Equipment 4 23.39.41.11.29 Disc Cloth Filters 4 23.39.41.11.31 Rotary Drum Cloth Filters 4 23.39.41.11.33 Automatic Backwash Cloth Filter Equipment 4 23.39.41.11.35 Cartridge Filters 4 23.39.41.11.37 Bag Filters 4 23.39.41.11.39 Automatic Straining Equipment 4 23.39.41.13 Demineralization Equipment 3 23.39.41.13.11 Ion-exchange Vessel Media 4 23.39.41.13.13 Electrodialysis Reversal Equipment 4 23.39.41.13.15 Reverse Osmosis and Nanofiltration Membrane Equipment 4 23.39.41.13.17 Multiple-effect Distillation Equipment 4 23.39.41.13.19 Desalination Mechanical Vapor Compression Equipment 4 23.39.41.13.21 Desalination Thermal Vapor Compression Equipment 4 23.39.41.13.23 Desalination Multi-stage Flash Equipment 4 23.39.41.13.25 Desalination Falling Film Evaporators 4 23.39.41.13.27 Desalination Rising Film Evaporators 4 23.39.41.13.29 Desalination Forced-circulation Crystallizing Equipment 4 23.39.41.13.31 Desalination Spray Dry Evaporation Equipment 4 23.39.41.13.33 Demineralization Energy Recovery Equipment 4 23.39.41.15 Ultraviolet Equipment 3 23.39.41.15.11 Closed-vessel Low-pressure/Low-intensity Ultraviolet Treatment Equipment 4 23.39.41.15.13 Closed-vessel Low-pressure/High-intensity Ultraviolet Treatment Equipment 4 23.39.41.15.15 Closed-vessel Medium-pressure Ultraviolet Treatment Equipment 4 23.39.41.15.17 Open-channel Low-pressure/Low-intensity Ultraviolet Treatment Equipment 4 23.39.41.15.19 Open-channel Low-pressure/High-intensity Ultraviolet Treatment Equipment 4 23.39.41.15.21 Open-channel Medium-pressure Ultraviolet Treatment Equipment 4 23.39.43.00 Water and Wastewater Residuals Handling and Treatment 2 23.39.43.11 Residuals Thickening Equipment 3 23.39.43.11.11 Circular Gravity Thickeners 4 23.39.43.11.13 Gravity Belt Thickeners 4 23.39.43.11.15 Dissolved Air Flotation Thickening Equipment 4 23.39.43.11.17 Rotary Drum Thickening Equipment 4 23.39.43.11.19 Centrifuge Thickening Equipment 4 23.39.43.11.21 Disc Thickeners 4 23.39.43.11.23 Thickening Screw Press 4 23.39.43.11.25 Scum Concentrator Equipment 4 23.39.43.13 Residuals Stabilization 3 23.39.43.13.11 Digester Covers and Appurtenances 4 23.39.43.13.11.11 Fixed Covers 5 23.39.43.13.11.13 Floating Covers 5 23.39.43.13.11.15 Gasholder Covers 5 23.39.43.13.13 Radial Beam Fixed Digester Covers 4 23.39.43.13.15 Dual Deck Truss-type Fixed Digester Covers 4 23.39.43.13.17 Radial Beam Floating Digester Covers 4 23.39.43.13.19 Dual Deck Truss-type Floating Digester Covers 4 23.39.43.13.21 Radial Beam Floating Gas-holding Digester Covers 4 23.39.43.13.23 Dual Deck Truss-type Floating Gas-holding Digester Covers 4 23.39.43.13.25 Digester Appurtenances 4 23.39.43.13.27 Aerobic Digester Aeration Equipment 4 23.39.43.13.29 Autothermal Thermophilic Aerobic Digestion Equipment 4 23.39.43.13.31 Egg-shaped Digesters 4 23.39.43.13.33 Confined Gas Mixing System 4 23.39.43.13.35 Digester Heating Equipment 4 23.39.43.13.37 Residuals Pasteurization Equipment 4 23.39.43.15 Residuals Dewatering Equipment 3 23.39.43.15.11 Vacuum Filters 4 23.39.43.15.13 Belt Filter Presses 4 23.39.43.15.15 Plate-and-Frame Filter Presses 4 23.39.43.15.17 Rotary Presses 4 23.39.43.15.19 Screw Presses 4 23.39.43.15.21 Dewatering Centrifuges 4 23.39.43.15.23 Belt Dryers 4 23.39.43.15.25 Direct-heat Residuals Drying Equipment 4 23.39.43.15.27 Indirect-heat Residuals Drying Equipment 4 23.39.43.17 Thermal Treatment of Residuals 3 23.39.43.17.11 Multiple-hearth Sludge Incinerators 4 23.39.43.17.13 Fluidized-bed Sludge Incinerators 4 23.39.43.17.15 Ash Handling Equipment 4 23.39.43.17.17 Recuperative Air Preheating Equipment 4 23.39.43.17.19 Regenerative Thermal Oxidizers 4 23.39.43.17.21 Waste Heat Recovery Boilers 4 23.39.43.17.23 Waste Heat Recovery Heat Exchangers 4 23.39.43.17.25 Thermal Oxidation Equipment 4 23.39.45.00 Septic System Equipment 2 23.39.45.11 Liquid Waste Treatment 3 23.39.45.11.11 Liquid Waste Decanter 4 23.39.45.11.13 Bacterial Filter Tanks 4 23.39.45.11.15 Liquid Waste Decanters 4 23.39.45.11.17 Liquid Waste Separators 4 23.39.45.11.19 Liquid Waste Pond and Reservoir Products 4 23.39.45.11.19.11 Liquid Waste Pond Covers 5 23.39.45.11.19.13 Liquid Waste Pond Liners 5 23.39.45.11.21 Additives for Treatment of Liquid Waste 4 23.39.45.11.21.11 Additives for Waste Water and Sewage Treatment 5 23.39.45.11.21.13 Additives for Residue Treatment 5 23.39.45.13 Liquid Waste Monitoring and Control 3 23.39.45.13.11 Detectors of Water Pollution 4 23.39.45.15 Solid Waste Disposal Plant Products 3 23.39.45.15.11 Chutes and Collectors 4 23.39.45.15.13 Pneumatic Waste Equipment 4 23.39.45.15.15 Incineration Plant 4 23.39.45.15.15.11 Packaged Incinerators 5 23.39.45.15.17 Crusher Plant 4 23.39.45.15.17.11 Waste Compactors and Destructors 5 23.39.45.15.19 Baling Plant 4 23.39.45.15.21 Pulping Machines 4 23.39.45.17 Solid Waste Handling Products 3 23.39.45.19 Solid Waste Impelling Equipment 3 23.39.45.21 Solid Waste Treatment Equipment 3 23.39.45.21.11 Solid Waste Compactors, Destructors, and Balers 4 23.39.45.21.13 Solid Waste Crushers 4 23.39.45.21.15 Solid Waste Pulping Machines 4 23.39.45.21.17 Solid Waste Shredding Machines 4 23.39.45.21.19 Incinerators 4 23.39.45.21.19.11 Solid Waste Incinerators 5 23.39.45.21.19.13 Packaged Incinerators 5 23.39.45.23 Solid Waste Monitoring and Control Equipment 3 23.39.45.23.11 Solid Waste Metal Detectors 4 23.39.45.23.13 Solid Waste Detectors for Other Solids 4 23.39.45.25 Solid Waste Collection and Removal Products 3 23.39.45.25.11 Complete Solid Waste Removal Systems 4 23.39.45.25.13 Solid Waste Bins 4 23.39.45.25.15 Gravity Chute Solid Waste Systems 4 23.39.45.25.17 Refuse Disposal Chutes 4 23.39.45.25.17.11 Refuse Hoppers 5 23.39.45.25.17.13 Refuse Chute Doors 5 23.39.45.25.17.15 Refuse Chute Decontamination Units 5 23.39.45.27 Solid Waste Handling Systems 3 23.39.45.27.11 Refuse Compactors 4 23.39.45.27.13 Refuse Containers 4 23.39.45.27.15 Dust Collectors 4 23.39.45.27.17 Utility Poles 4 23.39.47.00 Offshore Structures 2