Artiwell

What is the overall length. My application is a church baptistry; the brass 90degree elbow below the stopper is my concern

Is there a washer that would fit a 1-3/4” drain?

Can my cats easily pull this out? I see conflicting Q&A answers to this.

Can you use silicone glue reply just together since the O-rings and you get in the pack will not seal drain in place place