Fluidmaster 400A Universal Toilet Fill Valve, Anti-Siphon Replacement

The Fluidmaster 400A Universal Toilet Fill Valve is the world's best-selling solution for replacing outdated ballcocks and fixing noisy or slow-filling toilets. This highly versatile valve features an adjustable height from 9 to 14 inches, ensuring a universal fit for most standard one- and two-piece toilet tanks. Engineered with corrosion-resistant materials, it includes an anti-siphon design that prevents fresh water contamination and meets all major plumbing codes. Installation is streamlined with a pre-installed shank washer and an easy-to-turn water level adjustment dial for precise tank filling.

"Quiet corrosion-resistant replacement for outdated ballcock. Withstands harse water & constant use. Fits most standard tanks including 1.6gpf models. Backflow preventer guards against toilet water contamination. Adjusts from 9"""" to 14"""". Meets all anti-siphon codes."

Fluidmaster® recommends using the 400A fill valve in toilets that date prior to 1994 with flush volumes between 3.5 and 7 gal per flush. Fluidmaster®'s 400A universal toilet fill valve is the No 1 fill valve in the world. A universal design with an adjustable height from 9 to 14 to fit most toilets. The 400A offers quick refill rates and replaces ballcocks and other toilet fill valves. A trusted and proven toilet fill valve the 400A is built to last from corrosion-resistant materials for a long lifespan. This code approved anti-siphon design won't contaminate the fresh water supply. Some toilet models not supported - Glacier Bay® or Niagara® flapperless toilets one-piece toilets.