This toilet drain valve is specially designed for concealed, wall-mounted toilet systems, providing a clean and modern look while keeping all functional parts hidden behind the wall for a neat bathroom appearance. Precisely engineered for WDI tanks, this inlet and drain valve assembly ensures a and stable operation, making it ideal for replacing old or damaged internal tank parts without complicated modifications. Designed with user-friendly connections and standard interfaces, the valve components are easy to install, remove, and maintain, helping homeowners and plumbers complete repairs quickly and safely. Optimized internal structure reduces noise during tank filling and flushing. Enjoy a quieter bathroom environment with fewer vibrations and less water hammering compared to traditional valve designs., Weight: 0.49383546688 pounds, Manufacturer: NONDK