The Fluidmaster 400A toilet fill valve has an adjustable 9–14-inch height and an anti-siphon design. It replaces ballcocks and other toilet fill valves, refills quickly, and suits most standard tanks; it does not replace side-entry valves and is not suitable for Glacier Bay or Niagara flapperless toilets or one-piece toilets.
Fluidmaster 400A fill valve features
Adjustable height: 9–14 in
The twist adjustment helps match the valve height to a range of toilet tanks.
Anti-siphon design
The design helps prevent tank water from contaminating the fresh water supply.
Broad tank compatibility
It is designed for most standard toilets and single-port systems, with the stated model exclusions.
Fluidmaster 400A fill valve specifications
System type: Single-port
Height range: 9–14 in
Specifications compliance: IAPMO
Brand: Fluidmaster
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Customer Reviews
6
★★★★★★★★★★5.0
d****f
Verified
Works as it should
Good fit and the tank fills up properly.
★★★★★★★★★★5.0
i***r
Verified
Installed without much hassle and works great.
★★★★★★★★★★4.0
z****b
Verified
My toilet refills normally again. Straightforward fix.
★★★★★★★★★★5.0
o***a
Verified
Fixed the refill issue and did exactly what I wanted.
★★★★★★★★★★4.0
h***r
Verified
Pretty simple to set up. I’m satisfied with it.
★★★★★★★★★★4.0
l***a
Verified
A decent replacement. Everything seems to be working fine.
