Toilet Fill Valves

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Toilet Fill Valves

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The 400A - Universal Toilet Fill Valve with Brass Shank is available online, from our following retail partners.

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400A - Universal Toilet Fill Valve with Brass Shank

400A Fill Valve with Brass Shank

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Looking for a reliable and high-performance toilet fill valve to upgrade your bathroom? Look no further than the Fluidmaster 400A Universal Toilet Fill Valve with Brass Shank! The 400A is the world’s # 1 selling toilet fill valve.

In an independent study, Storables.com rates this fill valve as the best overall fill valve for 2023. Click here to read the article: Best Toilet Fill Valve

Crafted with the highest quality materials and designed for maximum efficiency, this versatile fill valve is perfect for toilets built prior to 1994. Featuring a durable brass shank that resists corrosion and provides superior strength and durability, this fill valve is built to last. It also boasts an adjustable height feature that allows you to customize the valve’s height to fit your specific toilet tank, ensuring a perfect fit and optimal performance.

So why wait? Upgrade your toilet today with the Fluidmaster 400A Universal Toilet Fill Valve with Brass Shank and enjoy superior performance, efficiency, and peace of mind.

Best for toilets manufactured prior to 1994 that have 3.5 – 7 gallons per flush
Best solution to fix noisy and slow filling toilets
Fast and easy to install
EZ-twist height adjustment from 9” to 14” to fit more tanks
Quiet, powerful operation
Easy to turn tank water level adjustment dial to save water
Pre-installed shank washer for quicker installation
7 year warranty

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

If your fill valve runs continuously or you hear a constant hissing sound, you may have debris trapped in the valve. This video will show you how to properly remove debris from the 400A fill valve:

400A - Universal Toilet Fill Valve with Brass Shank

Download Installation Instructions

Frequently Asked Questions

What toilets will the 400A fill valve work with?
- The 400A will work in older toilets dating as far back as the 1950’s. The 400A is one of the fastest filling valves in the market and will replace most antiquated technologies like Korky, Burlington Ballcocks, Delta Pro, Danco, and many others. Top toilet brands including: American Standard, Kohler, Gerber, Briggs, Mansfield, Vortens, Eljer, Western Pottery, Jacuzzi, and many more make 2 pc toilets (and some one piece toilets) that will fit the 400A.
How do I raise the water level inside the tank after I have installed the 400A?
- Once the fill valve is installed you can adjust the water level by twisting the “Tank water level adjustment screw”. Turn Clockwise for more or a higher water level and Counterclockwise for less or a lower water level.
Why does the 400A keep turning turning on and off?
- The fill valve is working properly and is not failing this action or sound is called the “Water Waste Signal”, you may know this more commonly as “Ghost Flushing”. This is the fill valves alert system and it is alerting you that the water inside the tank is leaking out on its own. To learn more about “Ghost Flushing” click here: How to Fix a Toilet Flushing on its own or Ghost Flushing
Are there any repair parts available for the 400A?
- Yes there is, we have two repair or replacement parts available for the 400A and they are:
  
  Replacement Top Cap Assembly (model 385)
  
  Replacement Seal (model 242)
  
  Toilet Fill Valve Hardware (model 250)
Will the 400A work with any flapper?
- The 400A works independently from the flapper and will work with flapper valves.
How can I tell if the 400A will work in my toilet?
- To ensure your toilet will work with the 400A simply measure the flush valve (overflow) pipe in the center of the tank. Measuring from the bottom of the tank to the top of the pipe. If the measurement is 6 inches or taller the 400A will fit the tank.
Can I use a filter with the 400A?
- Yes you can but Fluidmaster recommends against it. The 400A will let debris such as solder, rust, dirt and other minerals pass right through the valve. In situations where debris gets trapped inside the valve the top cap can be removed to purge or flush the contaminants out of the valve. To learn how to remove the top and clean the valve click here: Flushing Debris from the 400A toilet fill valve
How can I get a replacement under the warranty?
- You can request a warranty through our website page. Please view the procedure on how to file a warranty replacement here: Warranty Replacement

Problems It Fixes

WARNING:

Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

BUY ONLINE

The 400A - Universal Toilet Fill Valve with Brass Shank is available online, from our following retail partners.

IN THE UNITED STATES:

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