Fluidmaster's 400A toilet fill valve is the #1 best selling fill valve in the world! The toilet fill valve fills the toilet tank with water from the water supply line after it has been emptied by a flush. It replaces the ballcock and is more efficient and easy to install. This is an anti-siphon design-fill valve with adjustable height from 9" to 14". Replace your old style ballcock valve with this better performing Fluidmaster toilet fill valve.

 ‣ #1 best selling toilet fill valve in the world
 ‣ Replaces ballcocks
 ‣ Easy to install
 ‣ Height adjusts 9"-14"
 ‣ Refills quickly
 ‣ Universal fit for 1 and 2 piece toilets
 ‣ Corrosion-resistant material
 ‣ Anti-siphon operation, code approved
 ‣ Won't contaminate fresh water supply
 ‣ 5 Year Limited Warranty