LASCO 04-3334 Cushion Ring for Wall Hung Urinal, 4 3/8-OD x 2 7/8-ID x 3/4-Inch Thick, Sponge Rubber Urinal sponge rubber cushion ring 4 3/8 OD x 2 7/8 ID x 3/4- Thick, Urinal Wax free toilet installation Forms a gas, odor and water tight seal between toilet bowl and waste line Easy installation