- Precise Fit for 3 inch Flush Valves: Precisely matched size ratios solve compatibility issues on 3" flush valves, ensuring consistent water pressure with each flush. - Water Saving Sealing System: Special sealing system reduces rinse water purge, restores full flushing power, and enables cost-saving operation through precise water dosing with every flush. - Durable PVC Construction: High quality PVC delivers long service life without sacrificing flap elasticity or closing precision of the flapper mechanism. - Easy Installation with Patented Connection: Step-by-step installation requires no technical expertise. The patented connection system ensures a secure fit of the replacement flapper with every toilet flush, making it ideal for regular maintenance work. - Compatibility and Performance: Designed specifically for toilets with 3" flush valves; provides reliable sealing and predictable flushing performance. - Use Scenarios: - Residential bathroom: Replace a worn flapper to restore efficient, consistent flushes and reduce water waste. - Multi-unit settings: Regular maintenance in apartments or hotels to maintain flush reliability and optimize water use. - Small commercial restrooms: Suitable for projects with 3" flush valves, providing a dependable replacement that fits without tools or expertise.