EFFICIENT AND FAST WATER FILLING: Effectively enhances the overall performance of the toilet tank, addressing issues like slow filling, leakage, noise, and continuous running. Enjoy a quieter, faster, and more efficient user experience SILENT AND WATER-SAVING: Enjoy a peaceful bathroom environment with the fill valve’s efficient water-saving features, quickly filling the tank while optimizing the water supply system to reduce water bills BUILT-IN ANTI-BACKFLOW DESIGN:The anti-backflow design of the toilet fill valve effectively prevents contaminated water from entering your clean water supply, while also reducing blockages, leaks, and potential contamination. Ensures safer, cleaner pipes and protects your family’s health UNIVERSAL COMPATIBILITY: Compatible with most modern and older toilets, offering adjustable height (8.03-12.99 in) and water level range (4.13-10.83 in), easily adapting to different models and ensuring a hassle-free installation LONG-LASTING DURABILITY: Made from high-quality ABS/PP + fiberglass materials, it is designed to withstand harsh water conditions, resist aging, and provide long-term performance, minimizing maintenance and replacement costs