Korky WaterWISE Fill Valve and Premium Flapper Kit is designed to fix common toilet issues such as no or slow refilling, running, and noisy toilets. The Korky QuietFILL Toilet Fill Valve included in this kit operates more quietly than other fill valves, making it a great choice for a peaceful bathroom environment. Its universal design fits all brands and a wide range of adjustability, accommodating most 2-piece and 1-piece toilets with ease. Installation is simple and tool-—just remove your old fill valve or ballcock, insert the new Korky fill valve, and adjust using the innovative twist-lock mechanism. The valve adjusts from 7-3/4 inches to 13-1/2 inches to fit more toilets. This kit also features the longest lasting Korky Plus 2-inch Toilet Tank Flapper, which is easy to install and ensures reliable performance. The package includes one fill valve kit in a clamshell package, measuring 10-3/8" x 4-7/8" x 2-3/8", made by Lavelle Industries. Model Number: 818Z