Fix a deteriorated flush valve seat and eliminate leaks with the Fluidmaster 555C 2 in. PerforMAX Flush Valve Repair Kit. The quickest and easiest way to fix leaks from your flush valve with its no tank removal peel and stick process. You just peel the protective paper off the sealant ring and stick right on top of your existing 2 in. flush valve seat it is that simple. Follow included instructions for a proper install. The included PerforMAX 2 in. Water-Saving Flapper has an adjustable dial for a customized flush and water-savings. Other features include a solid frame flapper design to ensure a secure seal and eliminate twisting and built-in Microban technology to fight bacteria on the flapper itself. For use in 1.28 1.6 and 3.5 Gallons Per Flush toilets and all brands. Quickly repair leaks and upgrade your old flapper with the PerforMAX Flush Valve Repair Kit.