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Fill Valves

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The 400H - PerforMAX® Fill Valve is available online, from our following retail partners.

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400H - PerforMAX® Fill Valve

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Fix noisy, or slow filling fill valves with the quietest, most powerful toilet fill valve
Easy to install
Universal fit for most toilets
2X greater bowl refill for a more powerful flush than standard designs
Tank and Bowl water level adjustment dials to customize the perfect flush
Pre-Installed shank washer to cut down repair time
EZ-Twist height adjusts from 9 in. to 14 in. to fit more tanks
7 year warranty

Best for use in 1.28 and 1.6 GPF toilets (can use with older 3.5 GPF models). The Fluidmaster® 400H PerforMAX® Toilet Fill Valve is the newest and most high performance toilet fill valve in our fill valve collection. The 400H sets the standard for not only performance, but also installation. Featuring new and improved step-by-step pamphlet style instructions, and a pre-installed shank washer for the fastest and simplest install possible. The most powerful fill valve in the market, with 2X greater refill rates than standard models, and ultra-quiet operation. Customize your water use per flush depending on your needs, or toilet model with the easy-to-turn adjustment dials. This universal design is built to adjust, and work with most toilets and brands. The PerforMAX® Fill Valve is a code approved, anti-siphon design that won’t contaminate the fresh water supply. Save-water and achieve top performance with Fluidmaster®’s 400H PerforMAX® Toilet Fill Valve. Fluidmaster’s late Founder invented the fill valve technology in 1958.

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In this video, Jeff Patterson of Home Repair Tutor shows how easy it is to fix a running toilet with the Fluidmaster 400H ® Toilet Fill Valve: