Details: The Fits TOTO Fill Valve is designed to replace G-Max and Power Gravity Toilets. Designed to fix no/slow refilling, running, and noisy toilets, the fill valve is quieter than other fill valves. The Fits TOTO 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 fill valve adjusts from 7-3/4" to 13-1/2". Easy to install, the 528T includes: (1) 528GT 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.