Duostrainer sink drain and strainer (less tailpiece). This Duostrainer sink strainer features a removable basket strainer with a tightly sealing open/close stopper. It is constructed of durable, solid brass for long-lasting performance. Fits sinks with standard 3-1/2- or 4-inch outlet. Removable basket strainer with open/close stopper that seals tightly. Solid-brass construction for durability and reliability.