The universal toilet fill valve that fits almost any standard tank toilet. If your toilet runs, fills slowly, or hisses, this is the part...
Fluidmaster 400A Anti-Siphon Toilet Fill Valve
$10.25
The universal toilet fill valve that fits almost any standard tank toilet. If your toilet runs, fills slowly, or hisses, this is the part that fixes it.
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The guides below walk through the fix this part is for -- diagnosis, tools, install steps.
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Description
If your toilet runs, refills slowly, or hisses long after a flush, the fill valve is the usual cause — and the Fluidmaster 400A is the most widely installed replacement fill valve in North America. It replaces the older float-ball (ballcock) assembly inside the tank.
It is height-adjustable from 9 to 14 inches and fits all standard tank toilets, including American Standard, Kohler, TOTO, Mansfield, and Eljer. The anti-siphon design meets code in all U.S. jurisdictions, and the box includes a new shank washer and refill tube.
Tools: an adjustable wrench and a sponge or towel for the water left in the tank. Most first-time installs take 10-15 minutes.
Diagnosing it first? Our guide on why a toilet keeps running walks through the fill valve, flapper, and float so you fix the right part.
Additional information
| Brand | Fluidmaster |
|---|---|
| Type | Universal |

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