The Oatey® 140 Series / 101 PNC Series No-Caulk Round ABS Shower Drain with Stainless Steel Strainer mechanically attaches over 2 in. ABS DWV pipe, no caulking required. Designed for use with preformed shower bases, this drain comes with a universal 4-1/4 in. round snap-in strainer in a stainless steel finish that complements your existing bathroom décor. Oatey products have earned the trust of plumbing professionals for over 100 years.