Description One Piece Toilet Flush Valve Gasket (4.1 inch x 3.0 inch) (104mm x 76mm) 104mm x 76mm 4.1 inch Outer Diameter x 3.0 inch Inner Diameter .45 inch or 11mm Tall Fits Flush Valves for One Piece Toilets Wet Gasket Fits Flush Valves. FLUSH VALVE NOT INCLUDED