Easy to install, the fill valve is designed to fix no/slow refilling, running, and noisy toilets. Quieter than other fill valves, the QuietFILL Platinum Valve is ideal for toilets since 1994 (1.6 GPF or less). It is fully adjustable to prevent water waste in all toilets. The refill adjuster delivers the right amount of water to the bowl to maintain original performance. This toilet fill valve is easy to install and adjust; no tools are required. Designed to fit more toilets, the Korky toilet fill valve adjusts to fit both large and compact toilet tanks.