Retrive calculating parameters

I like to find a certain parameter from my familys. I can Do this with “Select Model Element” but this is not the way I like to do it. I like to find the parameters like I show in option A. But I can’t seem to connect this to “Elements.GetParameterValueByNameTypeOrInstance”?

In the End I like to write this information to an Excel sheet for further calculations.

THX in advance,

Something like this?
If you are new to dynamo try to explore the package column on the left hand side of dynamo, or the dynamo primer, especially the section regarding Revit:

Dynamo is returning the internal units for that parameter. Try something like GetParameterAsProjectUnits from the MEPover package.

That worked, thanks to both of you!

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