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 two-piece and one-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, this toilet fill valve adjusts from 8 inch to 14 in, fitting large and small tanks.