Fix your leaky tank and restore flush performance with this 3 in. flush valve repair kit Replaces most any 3 in. flush valve - Toto, American Standard and more Fast and Easy to Install, helpful toilet tool included Flapper adjusts to customize water use and fine-tune how much water you flush Adjustable flush valve height to fit more tanks, 3 in. gasket included, Durable silicone seal, Corrosion resistant, 5 year