Tank-to-Bowl Gasket is the genuine replacement part for the American Standard Cadet 3 toilets. It helps prevent leaks between a toilet tank and bowl while offering stability. The gasket features durable foam rubber construction that will provide a lasting life, and a flexible design for good fit and easy installation. Does not include hardware. For use with American Standard Cadet 3, Cato, Glacier Bay and others with 3 In. flush valve toilets.