These 5/16 in tank bolt washers from Danco install between the china of the toilet tank and the bolts that connect the tank to the bowl. The washers are made of flexible rubber that will endure the rigors of everyday use. They allow for quick and easy installation.
Flexible and round shape
Flexible and round shape
Replaces a worn toilet tank washer
Installs between the china of the toilet tank and the bolts that connect the tank to the bowl