Keep your sink draining smoothly with the Duostrainer sink basket. Featuring an easy-to-use open/close stopper, this basket fits snugly into a Duostrainer body. It can be matched with a wide variety of body finishes for a customized look. Available in an array of KOHLER finishes to match any decor. Removable basket with an open/close stopper that seals tightly into Duostrainer body.. Fits sinks with standard 3-1/2- or 4-inch outlet. Premium metal construction.