UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It's easy to install & keeps your toilet running smoothly. EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs. Adjustable from 7.75'' to 13.5.'' INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, refill adjuster, coupling nut, tamper proof key & instructions. WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber. REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.