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Fill Valves
Toilet fill valves refill the toilet tank and bowl to the correct water levels after flushing. They replace old style ballcocks and other older designs. Fluidmaster invented the fill valve technology in 1958.
Common Toilet Problems
- Toilet tank won't fill up or is slow to fill.
- Toilet running constantly.
400AS - Universal Fill Valve
- The original 400A was first introduced in 1975.
- The #1 selling fill valve in the world.
- The #1 solution to fix noisy toilets.
- Easy to install, Universal fit.
- EZ-Twist height adjusts from 9″ to 14″ to fit most toilets.
- Trusted by toilet manufacturers and plumbers worldwide.
- 5 year warranty.
Fluidmaster® recommends using the 400AS fill valve in toilets that date prior to 1994 with flush volumes between 3.5 and 7 gallons per flush. Fluidmaster®’s 400AS Universal Toilet Fill Valve is the #1 best-selling fill valve in the world! A universal design, with an adjustable height from 9″ to 14″ to fit most toilets. The 400AS offers quick refill rates and replaces ballcocks and other toilet fill valves. A trusted and proven toilet fill valve, the 400AS 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. Does not replace Side Entry Valves. Fluidmaster’s late Founder invented the fill valve technology in 1958.
