Key benefits - Fits 3-inch standard flush valves for easy installation and a reliable, tight seal. - Leak prevention with breakthrough membrane technology stops dripping valves, ensuring consistent flush performance and reducing water waste by up to 30% compared with standard valves. - PVC construction provides durability and wear resistance while maintaining long-term flexibility for a dependable seal in the toilet flush tank. - Easy 3-step installation with no tools or prior experience required; fast maintenance and minimal toilet downtime. Ideal for DIY replacement by homeowners. Specifications and compatibility - Size: 3-inch standard - Material: PVC - Function: reliable flush, leak prevention Use scenarios - Replace a worn or leaking flapper in a home toilet to restore reliability and conserve water. - Upgrade toilets in rental properties to reduce maintenance calls and overall water use. - DIY upgrade during bathroom renovations or new installations where simple 3-step replacement is advantageous.