KOHLER K-8803-7 Duostrainer Basket Strainer, Black Black Basket strainer with open/close stopper For sink installations with 3-1/2-inch or 4-inch outlets Offered separately to mix and match colors and finishes with K-8804 Duostrainer body KOHLER&#174 finishes resist corrosion and tarnishing, exceeding industry durability standards two times