Best Toilet Flush Valves in 2022

When it comes to finding the best toilet flush valves, there are several factors to consider in order to make sure you’re getting the most bang for your buck. The first step is to determine exactly what type of valve you need. There are three main types of valves: 1-piece, 2-piece and 3-piece. Each type has its own advantages and disadvantages, so it’s important to do your research and decide which one is right for you.

Once you’ve decided on the type of valve, you should then consider the quality of the valve. Look for valves that are made from durable materials and have a good reputation for reliability. It’s also important to make sure the valve is compatible with your toilet’s plumbing, so make sure to check compatibility before purchasing.

The next step is to look at the features of the valve. Some of the features you should consider include flow rate, noise level, and water efficiency. The higher the flow rate, the more water the valve can allow to pass through, which can save you money on your water bill. Noise level is also important if you want to avoid having to listen to a loud flush every time you use the toilet. Lastly, water efficiency is an important factor, as it determines how much water is used per flush.

Finally, consider the price. While it’s important to find a quality valve, you don’t want to overpay for it either. Do your research and compare prices between different brands and retailers to find the best deal.

By taking the time to consider all of these factors, you can be sure to find the best toilet flush valve for your needs. With the right valve, you’ll be able to enjoy the convenience and efficiency of a great flush every time.

1. 3 PACK Flush Valve Seal For Kohler Toilets, Replacement For K-GP1059291 Models By Essential Values

3 PACK Flush Valve Seal For Kohler Toilets, Replacement For K-GP1059291 Models By Essential Values


EASY INSTALLATION: 3.375" on the outside, 2.75" on the inside We are aware that some people find even small home projects to be a burden, so we have you covered. FAST EASY STEPS For A Quick Installation Are Listed Below In Our Product Description. Installing only takes a few minutes, and anyone can do it!

IMPROVEMENT YOUR FLUSH: When your toilet loses pressure and you have to deal with your guests' comments about the noise, nothing is more problematic or embarrassing. As a result, Essential Values' 6 Flush Valve Seal Replacements Help You Stay Ahead of the Competition. It's time to keep your friends, family, and in-laws as quiet as your clean bathroom!

Used most effectively with flush valve seals on Kohler toilets. Size May Be Compatible With Other Comparable Brands - Our Dimensions Are Based On The Kohler Standard Outside Diameter Of 3 3/8". This is an aftermarket replacement item that Essential Values distributes.

BEST VALUE - The Kohler* K-1083980 Canister Seal Can Be Perfectly Replaced With Our 3 Pack Flush Valve Canister Seal. Essential Values guarantees the best quality, or your money back, for a fraction of the cost of competing brands.

SMART APPLICATION - Our Engineered Design Seal Enables Simple Instructions Along With SMART Application While Being Cost Effective. In contrast to other brands, we added a lip to our seal to make it easier to add and remove both new and used seals. Save more time than ever while still upholding basic hygiene and not compromising the quality of your toilet!#


simple installation that takes one minute. This gasket might solve the issue if your Kohler canister toilet occasionally makes a water fill sound. Don't let the gasket's measures deter you; the inner measurement is smaller than it appears since it tucks away just where it should be.

2. Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets

Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets


To choose the proper part, confirm the colour of the shank. If it is black, use this component; if it is grey, use GP1138930.

To improve efficiency and save water, various fill rate inserts are offered.

Genuine Kohler part

Any height can be accommodated by the adjustment

Cap colour might change.

Silent Fill fills the tank discretely, offering a courteous experience.#


This was the ideal fill valve for me, a perfect match for the previous one. Good results. I didn't see the following details on the Amazon page, but I got them from the package: For most KOHLER toilets, "for replacement of BLACK-stemmed valves." Use replacement item GP1138930 if your old valve stem is gray. The lengthy, vertical portion is the stem. Additionally, as another reviewer pointed out, this lacks a fresh fill tube, that is, the rubber tubing that connects the fill valve to the flush valve. I reused the previous fill tube as directed, but it still appears scuffed and worn. In the hardware store, I'll look for a replacement. It is simple to swap out the fill tube without disassembling anything again. Last but not least, keep your old fill valve around for reference until you have the new one fitted, set up, and functioning.

3. Kohler Genuine Part 1083980 3" Toilet Canister Flush Valve Kit

Kohler Genuine Part 1083980 3" Toilet Canister Flush Valve Kit


Your text will be rewritten by QuillBot. Start by typing or pasting something into this box, then hit the enter


With this kit, fixing my Kohler toilet was quite simple for me. Since I am not the least bit mechanically inclined, I did nothing except wait in the vain hope that my toilet would somehow self-correct when I started to see indicators that it was not sounding right. I was, indeed, seriously in denial. Then it simply quit working. I used the faulty indications to search online. Voila! There were numerous self-help tips and demonstrations offered. I decided to purchase the canister valve assembly kit as a result. It was simple to take out and replace the old canister. I spent seven minutes on it. I've been widowed for seven decades. A plumber was not something that could be hired. Before opting to handle the issue myself, I sought advice from two handymen. I required a new toilet, one said (and he just happened to have one for sale). The other claimed he could resolve the issue but that it would take several hours and that he would need to be compensated properly. Hence, my choice of online self-help. I placed the order for the Kohler components, followed the instructions, gave myself a pat on the back, performed a little happy dance, and flushed my toilet one more time just for fun. The Kohler canister valve assembly kit receives a rating of 5 stars.

4. Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve

Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve


fluidmaster400a Toilet fill valve with anti-siphon - fm400a

This is quite robust.

This was produced in MEXICO.#


I tried moving to a Korky 528MP because my previous Fluidmaster 400 had a problem where it would run nonstop all night. That turned out to be a complete failure, so I return to the Fluidmaster 400. I confirmed that this valve is used by every toilet in my home, thus I'm going to attribute my first problem on a single defective valve.The 400 required no additional modification to function with my Mansfield flapper and suited my Kohler toilet precisely. It is also more quieter than the Korky, and the fill tube fits nicely into the center pipe. Despite taking away one rating for that single problem, I still believe this valve is superior to all others.

5. American Standard 3174.105-0070A Champion Universal Replacement Flush Valve

American Standard 3174.105-0070A Champion Universal Replacement Flush Valve


The original Champion toilet line can be retrofitted with this flush valve as well.

For the sake of the gaskets, it is not advised to use an in-tank toilet cleaning agent with this flush valve.#


On the flush valve assembly of our American Standard 6Lpf/1.6gpf Champion 4 toilet, the green ball cracked and detached. (seems to be a widespread issue/poor design for holding it together–perhaps even engineered for failure)It was impossible to obtain this equipment locally, not even at the store where we bought the toilets. Since I am aware of how well this original replacement kit flushes, I didn't want to even try taking a risk on a "universal" replacement kit.The installation of this kit was quick and it is the ideal substitute.TIP: To avoid having that be your next issue, make sure to check and/or replace your tank to bowl gasket and bolt seals while you're in there.See images for a comparison of old and new parts.The body to tank seal is significantly superior to the original, as you can see. general instructions are included. The only flaw in this kit is the plastic wrench used to tighten the nut, but it did the job.

6. Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve

Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve


Designed in China

While using less water, PerforMAX technology offers a 2X better refill rate.

Fluidmaster, the maker

7-year guarantee

Toilets, urinals, and parts

replaces fill valve designs that are old, ineffective, or noisy#


I normally buy a 400A, but I decided to give this more recent model a shot. It is just as effective as the 400A. For those who have never changed a fill valve before, it has good instructions. Over the 400A's, the instructions have been enhanced to cover using with 3" and Duo Flush valves in addition to the more conventional 2" valve. The roller clamp, hose clamps on the refill tube, and a stylish blue cap in place of the black cap are the only differences between this device and the 400A, as others have noted. I'm unable to determine if the internals have changed, however in case you were wondering, the 242 replacement seal is still used. The biggest advantage of this valve is that you can control how much water flows into the overflow pipe. After a flush, this water filled the toilet bowl. You will squander water if you allow too much water to flow. Just enough water must be used to fill the bowl. The toilet could not flush properly the next time if you don't allow enough water. To correctly fill my bowl, I discovered that I needed to lower the clamp by a notch. The amount of water I was squandering before was probably only a few ounces, but why waste if you don't have to?Although the 400A is somewhat less expensive, I think this is a really good substitute. Although the replaced unit may have been a little blocked, this one does appear to fill a little quicker and a little quieter than the replacement. Where I live, the water is really hard, and these fill valves have a hard life. They frequently clog and require cleaning before they can function properly once again.

7. TOTO TSU99A.X Adjustable Replacement Fill Valve Assembly for Toilet Tanks

TOTO TSU99A.X Adjustable Replacement Fill Valve Assembly for Toilet Tanks


includes a cone washer, nut, refill tube, and valve.

7/8-inch inlet connector that is typical

DIY installation is simple.

restores your tank's performance to its ideal state.

All TOTO toilet tanks have adjustable heights.#


8. Korky 528MP QuietFILL Platinum Fill Valve-Fits Most Toilets-Easy to Install-Made in USA, Universal 99%, Black

Korky 528MP QuietFILL Platinum Fill Valve-Fits Most Toilets-Easy to Install-Made in USA, Universal 99%, Black


HOW CORRKY: Whether your toilet is newer or older, our high-quality American-made materials are unive


About Author

Matt Grabowsky

My name is Matt Grabowsky and for over two decades I have been observing technological and social trends, talking about them and explaining them in an accessible way.