Filter Elements with Description of element types

[uaftab.cem19]

Hey, I want to filter out elements which have “Description” parameter “Column Rebar” in their “Element type”… but when i do this, i get the first elements due to the bool filter, not the exact elements. Why?

[Robert_Younger]

You are trying to use a mask that is a different length than the list you are trying to filter (6 vs 11). They need to be equal lengths.

If you want the exact elements with “Column Rebar” in the Element Type Description, wire the first filter like this: