Fix Noisy, Running toilets with this 3” flush valve PerforMAX Kit Fits American Standard/Eljer, Glacier Bay, Kohler, Toto and other toilet brands 3” water saving adjustable flapper included Solid flapper frame resists bending for a secure seal Adjustable valve height, and flapper arms fit most toilet models Best use in toilets with 1.28 HET & 1.6 gallons per flush Efficiently control water use and levels Silicone seal lasts up to 10X longer than standard flappers Anti-siphon design, code approved