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. Also included is the longest lasting Korky Plus 2 In. Toilet Tank Flapper. Easy to install, the 818 includes: (1) 528 Fill Valve, (1) 2001 Flapper, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) Tamper Proof Key and (1) Instructions.