UNIVERSAL DESIGN - The toilet replacement parts inside tank fits 3-inch plastic flush valves, compatible with American Standard and most toilet brands with 3-inch toilet tank valve opening.

Chances are your flapper is not sealing adequately around the flush valve, allowing water ... or is warped at all, the best ...

The parts inside a standard toilet tank make it difficult ... as clean as the day it was installed, it’s best to remove the fill valve, the flapper valve, and the flushing handle arm.