Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White
Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White
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Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White

1,802 ratings
Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, WhiteFluidmaster 400A Universal Toilet Tank Repair Valve2 pack Fluidmaster 400A Universal Toilet Tank Repair Valve3 pack Fluidmaster 400A Universal Toilet Tank Repair Valve4 pack Fluidmaster 400A Universal Toilet Tank Repair Valve
Actual ColorBlack, Grey
Multipack Quantity1

Key item features

  • Replacement refill valve
  • Fluidmaster toilet tank fill valve offers easy installation
  • 5-year warranty
  • Prevents backflow
  • Toilet tank fill valve replacement gives you fast, positive shut-off
  • Fluidmaster toilet tank repair fill valve prevents toilet running and noise
  • Made from high-quality materials for long life and top performance
  • Resistant to corrosion 
  • Has an anti-siphon guard to keep your water fresh and clean
  • Designed to fit almost any 1-piece or 2-piece toilet
  • Height is adjustable
  • Helps to prevent any wasted water

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.7 out of 5 stars
stars
1,802 ratings594 reviews
How item rating is calculated
  1. 5 stars83% (1,495)
  2. 4 stars10% (179)
  3. 3 stars3% (54)
  4. 2 stars1% (14)
  5. 1 star3% (60)

Reviews summary

Pros

  • : The setup finishes in minutes with simple instructions.
  • : Offers great quality at a lower cost.
  • : Manual provides illustrated tool-free setup steps.
  • : Works with most toilets for easy installation.
  • : The mechanism enables size and water-level changes.

Neutral

  • : Unit seals reliably but connected valve or regulator can leak.
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Showing 1-3 of 594 reviews

Sep 4, 2025
Reviewer name: Chris
Top Reviewer
Item details
Color: Black, Grey
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Fluidmaster 400A Toilet Tank Repair Valve

Installation was easier than I thought it would be. All hardware was included in the package and no tools are required. The instructions were good enough, although I couldn't raise the valve 3 inches above the drain or my lid wouldn't close (maybe 1.5 inches), and it still flushes just fine. The retaining nuts are the butterfly type, so they might be hard to remove if they get brittle. Total installation took around 5 minutes, and I hate plumbing.

Helpful?47745ZE3LO2V15788352
May 23, 2025
Reviewer name: Walmart customer
Item details
Color: Black, Grey
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

THIS ITEM HAS BEEN AROUND FOR YEARS, EASILY REPLACING THE OLD STYLE OF THE BALLCOCK ASSEMBLY. STUPID SIMPLE AND THE ONLY WAY TO GO FOR A 10 MINUTE FIX TO YOUR TOILET ISSUE. PLEASE DO NOT CHANGE A THING !!! IT WORKS GREAT SINCE ITS INCEPTION IN THE EARLY 80'S !

Helpful?47745ZE3LO2V15788352
Jul 11, 2025
Reviewer name: meldee22
Item details
Color: Black, Grey
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

No Need for a Plumber

If your toilet is constantly running and adjusting the fill valve doesn't fix it, don't call a plumber! Just replace this part on your own. Sooooo simple!!

Helpful?47745ZE3LO2V15788352
Current price is $9.97
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