Dearborn 16 Sink Basket Strainer, Brass Body w/ Stainless Steel Basket. Heavy Locknut. Rubber Stopper. Length-3-3/4" Ideal for a commercial, 4? sink drain Extra thick washer Extra wide locknut Heavy-duty stainless steel strainer body and basket designed to fit sinks with a 3-1/2 to 4opening Body: Buffed and polished chrome-plated brass Basket: Stainless steel post