While you’re at it, get to know why your toilet whistles when flushed. A canister flush valve is similar to a tower valve, only with a three- or four-inch drain opening rather than a two-inch one.

A toilet flush valve controls the flow of water from the tank into the toilet bowl. It is made of a valve body, a flapper, ...

While capably fitting all Kohler canister flush valve toilets for simple replacement ... the E-Max flushing system combining with a wide 3-Inch flush valve. We love this two-piece flushing toilet! It ...