SANEI Rubber Stopper for Bathtub, W-Type, for Drain Diameter 42-45mm, Double Water Stop, Without Chain, Replacement, H27F-45 【Secure Water Stop with W-Type】Double water stop effect with the rubber stopper side and the top lid. It adheres to the top and inside of the drain to stop water. Soft rubber is used on the side of the rubber stopper, and it fits into the drain.