Description 3.15 Inch Flush Valve Assembly for 2 Piece Toilets Flush valve replacement For two-piece toilets with a 3-inch flush hole Includes Gasket and optional steel or nylon bolts Hardbody flapper with optional additional silicone seals to extend the life of your flapper OUR BEST DEAL for longevity! Taller overflow tube for a fuller tank and a more powerful flush! Flush Valve Easy Measuring Tips – Video One piece or Two piece which is right for you? Video