Elkay sink accessories are designed to fit perfectly and coordinate with your Elkay sink. From color matched drains to custom-sized stainless steel sink grids and wood cutting boards, we have what you need. Our accessories make the time at your kitchen, prep, bar or laundry sink more convenient, efficient and effortless. Designed to fit 3-1/2" (89mm) drain opening with an overall flange size of 4-1/2" (114mm). 1-1/2" O.D. x 4" chrome plated brass tailpiece. Strainer Basket with Metal Stem and Rubber Seal. Type 304 stainless steel body. Polished finish.