Designed to fix no/slow refilling, running, and noisy toilets, the Korky QuietFILL Toilet Fill Valve is quieter than other fill valves. It has a universal design to fit all brands and features a wide range of adjustability to fit most 2-piece and 1-piece toilets. The QuietFill Fill Valve is very easy to install and adjust; no tools are required. Simply remove your old fill valve or ballcock, insert your new Korky fill valve, and adjust. The innovative twist-lock adjustment makes installation easy. Designed to fit more toilets, the QuietFill toilet fill valve adjusts to fit both large and compact toilet tanks. Easy to install, the 528 includes: (1) Fill Valve, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) Tamper Proof Key and (1) Instructions