Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White price history and forecast - Fluidmaster 400AP4
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

Brand:
Fluidmaster
Model Number:
400AP4
UPC:
039961000026
EAN:
0039961000026
ASIN:
B00IOXNJEE
Walmart SKU:
15788352
Key Takeaway

Current $9.97 pricing may soften soon—a 2.9% dip is anticipated after 57 days at this level.

Price expected to drop to $9.68 soon

Third-Party Seller Summary

No price history available for Third-Party Sellers

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$29.91
Lowest Price
$8.33
Most Recent Price
$9.97
Average Price
$10.07
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White since 11/24/2022. The most recent price update was on Jun 4, 2026.

Price Range: Over the past 90 days, the price has ranged from $8.33 (lowest on 12/14/2024) to $29.91 (highest on 3/31/2026). The average price during this period is $10.07.

Current Trend: Walmart.com prices have ranged from $9.97 (Jun 4) to $29.91 (Mar 31) over the past 90 days. Current price is close to the 90-day average of $10.22.

Customer Insights: Rated 4.7/5 from 1537 reviews.

Customer Reviews

1537 reviews

Customer Reviews

4.7
Based on 1537 reviews
5
1279
4
148
3
50
2
11
1
49
Filter Reviews:
Sort By:
Showing 10 of 1537 reviews

Fluidmaster 400A Toilet Tank Repair Valve

Chris September 3, 2025

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.

Was this review helpful?
Anonymous May 22, 2025

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 !

Was this review helpful?

No Need for a Plumber

meldee22 July 10, 2025

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!!

Was this review helpful?

Great universal valve

Charles April 19, 2026

I've used this universal repair valve for a while now whenever I have issues flushing. Never had issues installing it. Always fit the different toilet tanks. Takes around 15 minutes to install (probably most of the time is used to removed the old one which could be 'stuck'). Would recommend it.

Was this review helpful?

Perfect fit!

jimmy April 19, 2026

I got this for my toilet that was constantly running. This was an extremely straightforward Repair. Add a picture of my old filled valves, which was different. However, these are apparently more straightforward and less likely to break in the future. Very easy to adjust the level. Came with instructions and everything was present that I needed. Longest part was just emptying the water.

Was this review helpful?

Great

Rotha December 8, 2025

At first I was nervous it was going to fit. But I gave it a try because my toilet is a standard size and yeah it worked! Now I can just flush my toilet without it constantly running all day and all night. Also now my water bill won’t be high anymore lol

Was this review helpful?

Easy Fix.

George January 15, 2026

Very easy to replace the unit. Adjusting to fix perfectly and set tank water level is very easy to accomplish. Makes you look like a master plumber. Great instructions.

Was this review helpful?
JOHNNIE April 23, 2026

After using two low flow regulators which both leaked continuously, I bought this and installed it. leak stopped, at least for now. This is a very SLOW fill valve, you can't flush twice without waiting ten minutes for a refill. Installation is easy enough, simple tools and and about forty five minutes and done.

Was this review helpful?

Reasonable universal repair valve

Cravitz May 7, 2026

For some reason we were not able to raise it so the water line would be higher but I was ok with a lower water line and it was a lot cheaper than a plumber.

Was this review helpful?

cheaper model works fine!

anonymous February 1, 2026

This item was substituted for my original order and was cheaper! Walmart refunded the difference. It installed just fine and is operating as intended.

Was this review helpful?

Price History

Historical price data graph for Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

79 records

Walmart.com prices have ranged from $9.97 (Jun 4) to $29.91 (Mar 31) over the past 90 days. Current price is close to the 90-day average of $10.22.

Walmart.com price history for Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White showing recent price changes over the past 90 days
Date Price Change % Change
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $-19.94 -66.7%
$29.91 $+19.94 +200.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97 $+0.00 +0.0%
$9.97
No third-party seller price history available for this product in the past 90 days.

Related Products