Korky QuietFILL Platinum Fill Valve is designed to fix common toilet problems such as no or slow refilling, running water, and noisy operation. This fill valve operates more quietly than other models and is i for toilets using 1.6 gallons per flush or less, making it a reliable choice since 1994. It features full adjustability to prevent water waste and includes a refill adjuster that delivers the amount of water to maintain your toilet’s performance. Installation is simple and tool-: just remove the old fill valve or ballcock, insert the new Korky valve, and adjust it using the innovative twist-lock feature. The valve fits a wide range of toilets, adjusting from 7-3/4 inches to 13-1/2 inches, and is compatible with brands like Kohler, TOTO, American Standard, and others. Made from durable plastic, it supports flow rates of 1.6 and 1.28 gallons per flush and comes packaged in a clamshell for convenience. Model Number: 528MP