This PerforMAX Water-Saving Flapper helps solve common running toilet problems | Easy-to-install | Fits 2” flush valve toilets | Universal PerforMAX design fits most toilet models | Replace corroded and leaky flappers | 5-year warranty | Save on water usage with this dial adjustable flapper! | Adjusts for maximum flush efficiency | Fixes most common cause of a running toilet | Rigid frame aligns flapper properly on every flush | Micro ban prevents growth of harmful microbes