The Fluidmaster 6110 Universal 3" Tank-To-Bowl Gasket is designed to fit 3" flush valve toilets, such as American Standard Cadet 3, Glacier Bay models and others. Provide protection and securely seal your toilet tank to toilet bowl with this universal tank to bowl gasket. The sponge rubber material is strong yet malleable to fit, and provide a superior seal. This product offers a high quality solution to rocking toilet tanks. For proven protection at a common leak point, choose the Fluidmaster 6110 3" Toilet Bowl Gasket.