Fluidmaster PerforMAX High Performance Toilet Fill Valve

Upgrade your toilet’s performance with the Fluidmaster PerforMAX High Performance Toilet Fill Valve. Engineered for quieter operation and faster refill speeds, this universal fill valve replaces outdated, noisy, or slow-filling valves in virtually any toilet. Its robust plastic-and-rubber construction and anti-siphon, code-approved design ensure reliable, long-lasting performance while protecting your potable water supply.

With simple, step-by-step instructions and pre-installed components, installation is a breeze—even in hard-to-reach tank configurations. Dual adjustment dials give you precise control over tank and bowl water levels, so you can fine-tune each flush for maximum efficiency and water savings. The EZ-Twist height adjustment (9"–14") adapts to most tank sizes, making this the only fill valve you’ll ever need.

Key Features

• Quietest, most powerful fill valve to replace noisy or slow-filling models
• Easy, tool-free installation with clear step-by-step instructions
• Universal fit for 9"–14" tank heights across most toilet makes and models
• Dual tank-and-bowl dials for customizable flush performance and water savings
• Anti-siphon, code-approved design protects your fresh water supply

⚠️ WARNING: This product can expose you to Formaldehyde (gas) known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.