The HydroRight Dual Flush Valve quickly and easily converts a standard toilet into a dual flush toilet. The quick-flush setting uses significantly lower water volume for liquids and paper, while the full-flush setting uses the normal amount of water for solids. Converts standard 2-piece toilet into water-saving dual flush toiletDesigned to fit standard flush valves up to 2-1/2 inchPermafit silicone seal is chemical resistant and will not warpDrop-in installation with no tools or tank removal neededEliminates the most common problems in toilets: the flapper, chain and handle