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

Remarkable 72-day consistency at $9.97, running matching the quarterly average. This appears to be the established going rate.

Third-Party Seller Summary

Third-Party Seller Price History Summary
Price Type Price Date
Highest Price
$16.24
Lowest Price
$14.00
Most Recent Price
$14.00
Average Price
$14.48
First Tracked
Last Update

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
$10.04
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 Nov 8, 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 $10.04.

Current Trend: Walmart.com prices have ranged from $9.97 (Nov 8) to $9.97 (Nov 8) over the past 90 days. Current price is close to the 90-day average of $9.97.

Customer Insights: Rated 4.7/5 from 1911 reviews.

Customer Reviews

1911 reviews

Customer Reviews

4.7
Based on 1911 reviews
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Showing 10 of 1911 reviews
LiamsMommy2009 February 10, 2026

I was price comparing with Aldi, where I normally do my weekly shopping and you were matching their prices on everything. The fact that I was able to get my groceries delivered for basically the same price was very helpful, as my family had the flu and I wasn't up to shopping in store.

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fast shipping

David August 24, 2026

works as advertised. fast shipping

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Greg September 5, 2026

item worked as expected, received faster than expected. very impressed with total experience!

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WalmartCustomer November 3, 2026

Excellent Fluidmaster product, high quality and very fairly priced. It performed its function perfectly and immediately solved my toilet emergency on the 27th, so it deserves 5 stars in every aspect.

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Dependable

Kensmadalyn October 17, 2026

I replaced my 20-year-old Fluidmaster with this new one, both the basic model. (The web site suggestes replacing at 7 years--ha.) Took me 5 minutes to install, no leaks, works great.

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Easy Peasy

JB July 30, 2026

I hate plumbing I really do. Always a simple job "can" go from going good to going really bad quickly. But not the case here. Our Office Chair had started leaking inside the housing a few month ago. It was making a winding sound as if water was being squeezed under pressure. Come to find out the inside Float Leveler had broken and wasn't really filling the tank properly even though it was still somewhat working. But not like it should. I really was dreading this little job. (Note to self) No matter how big your working room is, you can NEVER NEVER do these jobs in this area without somewhat hugging this Porcelain, NEVER. But this little kit came with everything that was needed except the Pliers. Now the water shut valve under the tank "can be" a Problem area. When you go to shut off the water to the Toliet. This valve most of the time is stuck, because it has not been shut off in YEARS. And all that sediment in the water will keep the valve from closing tight. This can cause diconnecting water line to have a major water leak. Or, when disconnecting the water line fitting from the tank This fitting is mostly old and will crack when untighting or tighting. For these reasons, is why alot of plumbers charge what they do. It's always a rabbit hole when working with plumbing. But! Not this time. The best way to do this is remove the flushing handle from the tank, this is mostly likely with "BACKWARD" threading. Get that out of the way first. I used a Shop Vac and slurpped all the water from the tank. I used a sponge and dried the area around the Flushing valve. It took about 15 mintures for everything to be completed. Now our little Office Chair flushes faster, better and quieter. Mama is happy. And so am I.

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sean August 18, 2026

Easy install. Works great. toilet would fill extremely slow, after maintenance replacement a year ago. so I did it myself. Simple jobs like this, are easy. They have instructions. Most home repairs are easy. Good product not overpriced. Walmart plus ➕️ free delivery.

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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.

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Busted Package

Richard May 8, 2025

When I received my delivery, it was wrapped in plastic. When I opened the plastic, the box inside was smashed on both ends and the part in the middle was separated into 2 pieces. I was leery of it working properly since the box was busted up. I'm still waiting on my refund. I returned it the next working day.

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Charles November 3, 2026

this item broke within the first ten days were I was trying to raise the water level up it snapped the circular eye that holds that valve in place not good

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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

72 records

Walmart.com prices have ranged from $9.97 (Nov 8) to $9.97 (Nov 8) over the past 90 days. Current price is close to the 90-day average of $9.97.

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
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$9.97 — —

Third-Party Seller Pricing

13 records

Third-Party Sellers prices have ranged from $14.00 (Sep 18) to $16.24 (Aug 31) over the past 90 days. Current price is close to the 90-day average of $14.52.

Third-party seller price history for Fluidmaster 400A Universal Toilet Tank Repair Valve, Adjustable Height, Corrosion-Resistant Material, White showing recent price changes
Date Price Change % Change
$14.00 $+0.00 +0.0%
$14.00 $-2.24 -13.8%
$16.24 $+2.24 +16.0%
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$14.00 $-2.24 -13.8%
$16.24 $+2.24 +16.0%
$14.00 $-2.24 -13.8%
$16.24 $+2.24 +16.0%
$14.00 — —

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