The EVO 4" Bottom Drain is made of heavy-duty Schedule 80 PVC. It features both a 4" horizontal pipe fitting. The center standpipe can be adjusted, threading to the underside of the aeration plate and gluing to the bottom of the drain base. Includes stainless steel screws, and liner ring.

This is the non-aerated version. for the Evolution Aqua 4" Aerated Bottom Drain version version.