Square Shower Drain for Low Profile Show Pan Drain with SS304 Grating Oval Style Bronze FinishABS Construction Drain Base for Shower Drains Connecting between shower drains and drain pipes Inside tailpiece for 2" drains and outside tailpiece 3" drains Grooved collar works as weep holes while the grooved flange adapter provides a strong seal Easy Installation Simply push the 2 shower drain down to the threaded adaptor. Products are in compliance with Uniform Plumbing Code (UPC) and ASME A112. 18. 2 2015 CSA B125. 2 15 4" Stainless Steel