HydroFit toilet repair kit includes: Hydroclean Toilet Fill Valve, HydroForce Adjustable Flapper, Flush Valve, Tank Lever, Smart Nut, Shank Washer, 3 Mounting Bolts, Chemically Resistant Gaskets. Fill valve reduces water usage by 36 percent, detects leaks and cleans tank. Flapper adjusts to fit toilets 1.6 gal. or larger.