Solves flush problems: Innovative design with 3-inch standard size enables easy installation and a tight seal, significantly reducing maintenance needs. Fast repair: Fixes cistern leaks within minutes through a precise fit, optimizes water flow with every flush, and continuously reduces water consumption without the use of tools. Durable material: High-quality PVC construction provides years of use without loss of elasticity or sealing precision of the valve flap mechanism. Fast installation: Thoughtful design enables effortless replacement of the toilet valve in record time. The tool-free mounting technique is suitable for both beginners and experienced DIYers. Use scenarios - In a residential bathroom to replace a worn valve, stop leaks, and reduce water waste. - In rental properties, hotels, or office restrooms to perform quick, tool-free valve replacements, minimizing downtime and maintenance costs. - In bathroom remodels or new installations that require a 3-inch standard valve, enabling fast retrofits without specialized tools.