Fluidmaster PRO Series Fill Valves offer 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 in. to 14 in. 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.