Danco 89170 Flush Valve Shank Washer, 2.35 in ID x 3.15 in OD Dia, Rubber, Black

Replacing a flush valve shank washer is a time/labor-saving method for stopping or preventing water inside the toilet tank from leaking down the drain. By replacing the washer you can avoid having to replace the entire flush valve saving lots of time and money. This flush shank valve is made of durable rubber that conforms and seals to the toilet tank with ease. It has a round flexible design that is perfect for helping you prevent a troublesome toilet leak.