Fluidmaster toilet tank parts are found in more toilets than all other brands combined and is the #1 brand of toilet repair parts worldwide.

Fluidmaster is the most trusted brand of toilet repair parts by homeowners and plumbers. Fluidmaster invented the fill valve technology.

Fluidmaster invented the toilet fill valve technology in 1957 and is the most trusted and largest selling brand of toilet fill valves.

Jul 25, 2024 · Fluidmaster gives you solutions to your toilet problems. Our technical support team will help you fix your toilet problems.

Fluidmaster, the # 1 brand in toilet repair, makes it very easy for you to diagnose your toilet problems and fix it!

Browse the list of available technical documentation below.

Toilet flappers are the leading cause of leaking or running toilets. Fluidmaster offers a wide range of toilet flappers to fix your toilet problems.

Sometimes you can hear a toilet refilling without being flushed. Fluidmaster shows you how to fix this problem.

The 400H is Fluidmaster’s most versatile, performance-driven toilet fill valve—engineered for pros but simple enough for DIY installs. Whether you’re fixing a noisy tank, upgrading for water savings, or …

Fluidmaster’s 400A is the #1 best selling toilet fill valve in the world! It fixes noisy toilets and slow filling toilets.