Install quickly and easily Turn off the water supply, remove the old flapper, attach the hinge flapper to the flush valve, and connect the chain to the flush lever with the hook. Turn the water back on and test the flush. Fits most toilet models and tanks Universal hinge design with flexible rubber material for a tight seal and reliable performance. Save water and money Fix a leaky toilet easily and cheaply without calling a plumber. toilet flaps help reduce water use per flush and prevent leaks. Practical and reliable Built for durable, long lasting performance and simple, effective operation. Use scenarios Replacing a worn flapper in a home bathroom to stop a constant running toilet and restore proper flush. During a toilet upgrade or remodel to improve efficiency without replacing the entire tank. In rental properties or multi toilet homes to standardize quick maintenance and minimize downtime.