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Fluidmaster 400H-002 Performax Universal Toilet Fill Valve

Curated from 50 real Reddit conversations

Refreshed on: March 20, 2025

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Fluidmaster 400H-002 Performax Universal Toilet Fill Valve

Brand: Fluidmaster
Price: $14
Snoop Score:
7.7
Sentiment
7.7
Popularity
7.5
Technical
7.4
Buy on Amazon for $14See All Toilet Spare Parts Reviews
As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Fluidmaster 400H-002 Performax Universal Toilet Fill Valve is designed to efficiently control the water flow in toilets, ensuring a reliable and quiet performance. This fill valve is widely praised for its ease of installation and compatibility with a variety of toilet models, with users noting that "Fluidmaster is the quietest fill valve option" and that it is "easy to install and fits most toilet models." Many consumers also highlight its durability, with some stating they've used Fluidmaster products for over a decade without issues, emphasizing its reputation as the "best quality option" available in the market. With overwhelmingly positive feedback regarding its performance and longevity, the Fluidmaster 400H-002 is highly recommended for anyone looking to upgrade their toilet fill valve. Its reliability and user-friendly features make it a top choice among homeowners and professionals alike, solidifying its place as a leader in toilet repair solutions. Given the consensus of satisfied customers, this product is a solid investment for toilet maintenance.

Not for you? Check out our other rated Toilet Spare Parts

Guess what. The fluidmaster still is the quietest one.

Positive Feedback

Korky is the absolute worst quality.

Negative Feedback
Product
7.7
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve
Buy on Amazon for $14
Residential Use
9 / 10
Commercial Applications
8 / 10
Repair and Maintenance
9 / 10
DIY Projects
6 / 10
See how this compares to all Toilet Spare Parts

What it does well!

Key strengths users can’t stop talking about.
Fluidmaster is the quietest fill valve option.
“Guess what. The fluidmaster still is the quietest one.”➕
“My go to choice is Fluidmaster with the brass shank :)”➕
Fluidmaster is reliable and long-lasting.
“I've had one at least 10 years and it's still working fine.”➕
“In decades of plumbing and installing tons of Fluidmasters, I never had problems like this.”➕
“I concur. Literally a thousand of them.”➕
“I’ve replaced a few that I installed 10+ years ago.”➕
Fluidmaster is easy to install and fits most toilet models.
“I stand behind the fact that the brass shank is worth the extra couple dollars.”➕
Fluidmaster is considered the best quality option.
“Best quality imo.”➕
“Yeah and I really like fluid master's simplicity and repairability.”➕
“I'm just surprised that I had better luck with the the stock - contractor grade parts.”➕
“yea fluidmaster is best”➕
Fluidmaster is easy to install.
“One guy at Home depot said it was their most popular ones.”➕
Fluidmaster products generally work well for homeowners
“I’m convinced the quality of everything sold in stores has just gone so far down hill.”➕
“The fluid master all in one kit for $20 has always worked fine for me.”➕
Fluidmaster is considered a reliable fill valve option.
“The Fluidmaster brand seems to be a big one from what I've seen.”➕
“It works like a charm.”➕
Fluidmaster fits most toilet models.
“I got that fluid master kit, no complaints so far.”➕
Fluidmaster Pro series components are recommended for durability.
“Look at Fluidmaster Pro series components and flappers that have a “chemical resistant” coating.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.
Korky fill valves are considered low quality and unreliable.
“Korky is the absolute worst quality.”➕
Issues may arise due to water quality.
“I’ve had bad luck with the ones from box stores, never had much for issues with the pro 45B.”➕
Some Fluidmaster products can break down quickly
“That’s one that has broken down quick. Basically anything that is rubber is falling apart, leading to leaking.”➕
Some Fluidmaster valves may fail prematurely.
“Even fluidmasters best valve is made of sh@t.”➕

Compare On All Talked About Dimensions

Product NameImagePriceScoreCompareSee DetailsBuy Now
Fluidmaster K-400H-039 Toilet Fill Valve and Flapper KitFluidmaster K-400H-039 Toilet Fill Valve and Flapper Kit$15
9.2
DetailsBuy
Fluidmaster 400ARHRKP10 PerforMAX All in One Repair KitFluidmaster 400ARHRKP10 PerforMAX All in One Repair Kit$16
8.9
DetailsBuy
Hidnvefen 3 Inch Toilet Flapper ReplacementHidnvefen 3 Inch Toilet Flapper Replacement$7
8.1
DetailsBuy
Houpeoro Universal Toilet Flusher Replacement KitHoupeoro Universal Toilet Flusher Replacement Kit$15
8.0
DetailsBuy
Hidnvefen Toilet Flapper Replacement KitHidnvefen Toilet Flapper Replacement Kit$9
7.9
DetailsBuy
Fluidmaster 400H-002 Performax Universal Toilet Fill ValveFluidmaster 400H-002 Performax Universal Toilet Fill Valve$14
7.7
DetailsBuy
Hidnvefen Toilet Handle Replacement KitHidnvefen Toilet Handle Replacement Kit$8
6.8
DetailsBuy
Fluidmaster PerforMAX Universal Toilet Fill and Flush Valve Repair KitFluidmaster PerforMAX Universal Toilet Fill and Flush Valve Repair Kit$14
6.7
DetailsBuy
VRSS Toilet Flappers Replacement for 3 Inch Outlet PipeVRSS Toilet Flappers Replacement for 3 Inch Outlet Pipe$5
6.5
DetailsBuy
R&T Toilet Fill Valve Replacement KitR&T Toilet Fill Valve Replacement Kit$18
6.0
DetailsBuy
Lychee Light Dual Flushing Toilet Push Button ReplacementLychee Light Dual Flushing Toilet Push Button Replacement$27
5.7
DetailsBuy
Jabsco 29043-0000 Manual Toilet Spare Parts Base Valve GasketJabsco 29043-0000 Manual Toilet Spare Parts Base Valve Gasket$24
5.2
DetailsBuy
Shutao 2 Set RV Toilet Seal Kit for Dometic ToiletsShutao 2 Set RV Toilet Seal Kit for Dometic Toilets$11
4.4
DetailsBuy
FATCANMA RV Toilet Rubber Seal Kit ReplacementFATCANMA RV Toilet Rubber Seal Kit Replacement$9
4.4
DetailsBuy
Leopauto 31705 RV Toilet Spare Parts Water Valve KitLeopauto 31705 RV Toilet Spare Parts Water Valve Kit$13
3.1
DetailsBuy

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Comparison of different fill valve brands.
“Is there a reliable / commercial option that just works?”➕
“Much quieter than whatever was in there before.”➕
Discussion about specific toilet models and their compatibility with parts.
“do you think a universal fluidmaster kit would be able to replace all the inside parts of this toilet tank?”➕
“The flapper. Isn’t a universal one.”➕
“There are two very similar, but incompatible Kohler flappers.”➕
“No that's a kohler toilet and a specific flapper.”➕
Mention of bulk purchasing for cost savings.
“I was telling an apprentice about buying 10 at a time to keep on hand, and how much that purchase nets us, its unreal.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Discussion on using drop-in reservoir cleaning tablets affecting valve performance.
“They should not be failing. The problem is that they also dissolve the plastic and rubber of the internals.”➕
Discussion about installation challenges with tank parts
“Big box store replacement parts are sh*t.”➕
“Its like we just invented the toilet.”➕
“Are you sure you have the rubber seal in the correct location?”➕
Discussion about water hammer issues related to toilet fill valves.
“The only thing that seems to work is if I *barely* open the toilet water valve, so water can only trickle into the toilet.”➕
“Have you done any research into expansion tanks?”➕
“those seemed to help control the pressure for the hot water, rather than cold?”➕

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