Danco 10574 Dual Flush Repair Kit for Kohler, White/Black Repairs KOHLER dual flush toilets including persuade 2 piece, san raphael 1 piece, saile 2 piece and escale 2 piece Includes a rubber shank washer, silicone flush valve seal and lock nut Kit provides a solution for a leaking flush valve with out replacing the entire flush valve Works with all KOHLER dual flush toilets with a canister style flush valve