Fill Valves

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400AH – PerforMAX® Fill Valve

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Most powerful fill valve on the market. The 400AH is also known as the 400ARHR. Fluidmaster recommends the PerforMAX® fill valve for toilets manufactured from 1994 to the current time.

  • Easy to install
  • Quietest and Most Powerful Solution
  • Features Ultra Quiet Fill
  • 2X greater refill rate than standard fill valves
  • Height adjusts 10″ to 15″
  • Helps prevent excessive or inadequate bowl fill level
  • Some toilet models not supported: Flapperless, One Piece Toilets  and Side Entry Valves.

Watch this video on how to install Fluidmaster PerforMAX®:

To check your toilet’s flush volume, please click here.

400AH – PerforMAX® Fill Valve

Download Installation Instructions

FLUIDMASTER RECOMMENDS

  • UPGRADE
  • ALSO REPLACE
  • ENHANCE

BUY ONLINE

The 400AH – PerforMAX® Fill Valve is available online, from our following retail partners.
IN THE UNITED STATES:
IN CANADA: