Quick and easy installation: Turn off the water supply, remove the old flapper, attach the flapper to the flush valve, and connect the chain to the flush lever with the included hook. Turn the water back on and test the flush. Fits most toilets: Our hinge flapper is designed to fit most toilet models and tanks. Flexible rubber creates a tight seal to prevent leaks and future running. Durable and waterefficient: Made with soft rubber and a stainless steel chain for corrosion resistance and longlasting performance. Provides a reliable seal that helps reduce water waste. Practical and reliable: Simple to install, easy to maintain, and built for everyday use in residential and commercial settings. Use scenarios: At home: a worn flapper to stop a running toilet and restore proper flushing. Rental properties: Upgrade toilets to reduce water waste and minimize maintenance calls. Offices or schools: Maintain efficient toilet performance in usage environments with a dependable seal and durable components.