Fluidmaster PRO Series Fill Valves offers the best in performance and durability. Trusted by professionals worldwide the PRO45 Toilet Fill Valve features a shank design that offers ultra-quiet operation and minimal water hammer. Fully adjustable height from 9" to 14" to fit most tanks and all brands. Installation is fast and simple to get your toilet running perfectly. the PRO45 fill valve is a code approved, anti-siphon design that come with a 5 year warranty.