Kohler Replacement Parts for Canister (Dual-Flush) One- and Two-Piece Toilets
If you have a dual-flush toilet, you will see a two-button actuator on the top or a two-part trip lever on the side, rather than a standard trip lever. Inside the tank you will not see a flapper but a cylinder-shaped flush valve. These toilets do not use a flapper, but a seal. If your toilet is leaking water into the bowl, the seal needs to be replaced, not the canister.