Top 10 Best Toilet Flush Valves Reviews 2022-Updated


By Mike Chua | Last Updated: January, 2021

Toilet Flush Valves

Replacing toilet flush valves can be quite a chore but it is an inevitable part of life. If you are wondering which toilet valves are your best bets in order to optimize your water usage, then you have come to the right place. We have curated a list of the best toilet flush valves that you can get on the market.

Top List Toilet Flush Valves


Product Name



Fluidmaster 400AH PerforMAX


TOTO TSU99A.X Hi-Speed 

GENUINE PART 1083980 3" 

Standard 3174.105-0070A

The Top Toilet Flush Valves You Can Get Today

 Our reviews are simple but clear so that you can make the best choice.

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

This model has been designed to offer a stellar performance. If you want to replace your old toilet valve with something new that will give you the best results, then this is the one to go for. PerforMAX fill valve is known to be one of the most powerful valves that you can get your hands on. It is easy to install, and simple to use which means that you will not have a hard time learning how to use it. The installation process also eliminates noise which is an excellent feature.

You will be getting double the refill rates as compared to a standard fill valve designs. The universal design makes it a perfect fit for most toilet models, so you do not have to worry about the valve being incompatible with yours, As long as it has a height adjustable valve shank design, the system will work fine. However, the valve does perform its best with 1.28 HET and 1.6 GPF toilets. This also includes dual flush.

The valve also has a water-saving roller clamp which prevents wastage of water. Not only will that save you precious resources, but also money. You will be able to optimize toilet water usage simply by installing this valve.

The construction of the valve is sturdy and will easily last you for a long time. It comes with a 7-year warranty as it is.


  • This model is extremely easy to install and use.
  • The universal model makes it perfect for most toilet seat models.
  • You will be able to adjust the height between 10” – 15”.
  • It comes with an adjustable roller-clamp that will optimize your water usage.
  • PerforMAX technology gives double the refill rate than other valves.


  • It will cost you some extra money as compared to other models from the same brand.
2. KOHLER GENUINE PART GP1083167 Silent Fill Valve Kit

Finding the perfect toilet flush valve can be a difficult task. You need one that does not create a lot of noise but also gives excellent performance at the same time. Kohler is known for its quality products, and you can trust them to do a good job with their toilet accessories.

To begin with, you should always ensure that the product you are getting is a genuine Kohler article so that it performs the way it is supposed to. Engineers have worked hard to design this valve to ensure that the performance of the valve or the toilet would be in no way affected because of the change. Their efforts to hold on to original product performance have paid off because this valve works great once installed.

You will be able to adjust it according to your height which makes it easy to use. The multiple fill-rate inserts are meant to help you save both water and money. It also has a Silent Fill feature which means that you will be able to avoid a ruckus.

You can also expect the product to last a long while because the build and the construction are sturdy. If you have an old or leaking fill valve, then you should consider purchasing this valve without any delay.


  • The Silent Fill feature allows you to fill the tank without any excess noise.
  • The flush valve comes with multiple fill-rate inserts which will optimize the performance of the valve and the toilet.
  • You will be able to conserve water with the help of this valve.
  • The valve can be adjusted according to the user's height.
  • There are a variety of cap colors to choose from.


  • The instructions that come with the product are not very detailed and helpful.
3. TOTO TSU99A.X Adjustable Replacement Fill Valve

Toilet flush valves are a necessity, and all of us are on the quest to find the best variant in order to make our life easier. If you have a TOTO toilet model, then this is one of the best valves that you can get your hands on. The TOTO Adjustable Fill Valve can be used with all the current TOTO toilet models which means that you will not have to worry about compatibility issues.

This toilet valve is highly customizable when it comes to its height and the refill volume. You will be able to adjust them based on your toilet tank settings to in order to optimize the process. This valve will help you harness your resources to get the maximum results. The fill valve comes with a standard 7/8 inch inlet connection.

The product comes with a valve and a refill tube. As long as you get a genuine product, you will not have to worry about the installation process. Since it works with the same company's models, it can be installed even by beginners without an issue. The instructions are very detailed and can be understood easily.


  • The valve offers an adjustable height irrespective of the toilet tank model it is working with.
  • This valve will help your tank to deliver an optimal performance which means that you will be using your resources in the best manner possible.
  • The kit comes with a valve, cone washer, and nut, a refill tube and clamp.
  • You will find the standard 7/8 inch inlet connection to be useful.
  • The flush valve is very easy to install and will take up little to no time.


  • The model may not last very long depending on the conditions of your usage.
4. KOHLER GENUINE PART 1083980 3" Toilet Canister Flush Valve Kit

Kohler is one of the most trustworthy brands out there when it comes to toilet products. You can believe in them to create quality, long-lasting products. However, you will have to ensure that you are getting your hands on the original KOHLER product before you begin to set expectations. The best way to check that is to find the KOHLER GENUINE PARTS logo which is a symbol of its originality.

When designing this flush valve, the engineers at KOHLER were aiming to preserve the performance of the original product so that customers would be satisfied. So you can expect it to work seamlessly with your toilet model. The valve is also built to last as the company laid special emphasis on product longevity.

However, you cannot use this model with all toilet tanks which can be a drawback for some. This particular flush valve is mostly aimed at KOHLER Cimarron toilets. You can be assured, though, that the valve delivers excellent performance once installed. The product comes with everything that you will need for an easy installation process. Depending on the reason why you need the replacement, you might need to remove the tank in order to install this flush valve.


  • This canister flush valve kit will work for most KOHLER Cimarron toilets. It tends to deliver its best performance when it is used with the KOHLER Cimarron tank model K-4634.
  • The flush valve comes with a 3" canister with a 3" outlet.
  • The tank model number can be found on the back wall of the toilet tank which makes it easier for the flush valve to be installed correctly.
  • The valve delivers excellent performance with a steady refill rate.


  • You might find yourself stuck with knockoffs of this product if you are not careful.
5. American Standard 3174.105-0070A Champion Universal Replacement Flush Valve

If you are tired of low-quality flush valves that just do not last, then you should give this product a go. This flush valve is durable and will last you much longer than the other products on the market. The construction of the valve is durable which means that you can rely on it to not give up any time soon.

All American Standard products meet the highest standards because they are designed to help you deal with your busy lifestyle. You will not have to spend your time trying to find perfect replacement valves because they offer them to you directly. You can depend on this product to improve the performance of your toilet tank once it is installed. This replacement flush valve comes with a 7-inch tube. The product is an American Standard OEM replacement part which means that it is absolutely legitimate.

The Champion 4 Toilet Flush Valve can be used with any of the Champion 4 Flushing systems that are offered by the company. The universal compatibility of the product makes it a must-have. You can use it any of the Champion line of two-piece toilets without any hassle.


It is a universal replacement part that can be used any two-piece toilet from the Champion line.

The length of the chain is 3.4 inches which makes it flexible to use.

It comes with a 7 inches tube.


It can be difficult to install this replacement valve on your own if you have no previous experience.

6. Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets

There is nothing called a perfect product. You will have to find settle for an option that meets all your needs without causing any more problems. This fill valve was created especially for the Glacier Bay and Niagara Conservation Flapperless Toilets, and it is totally worth the price you are paying.

Fluidmaster is known to produce excellent flush valves, and this one is no exception. You can depend on it to last you for a significant amount of time before you need to replace the valve again. It comes with a preset fill rate which will help you get the correct amount of water whenever you flush the toilet.

The flush valve has a number of features that will impress users. The high-quality construction is resistant to corrosion which means that the system will be able to withstand the pressure of the water without wearing down. The code-approved anti-siphon operation also makes this flush valve rather unique. You will also find that the toilet valve is rather easy to install, and you will have no problems setting up the system.

This toilet flush valve will refill your toilet tank quickly, and keep the fresh water supply from getting contaminated in any way.


  • The toilet valve is rather easy to install.
  • It is made with corrosion-resistant material which makes it long-lasting.
  • The product comes with an anti-siphon operation that is code approved.
  • It is a replacement part for the Glacier Bay & Niagara Flapperless Toilets and works with them seamlessly.
  • You will be able to increase the refill speed whenever you want.
  • You can optimize your toilet performance by adjusting the toilet settings.
  • It comes with a 1-year warranty which shows the company's trust in this product.


  • It is easy to mess up the installation if you lose the tiny white flow restrictor in the old valve.
7. Korky 528T Replacement TOTO Fill Valve-Fits

If there is one brand that you can depend on to give you high-quality products, that is Korky. They know that toilets have been changing over the last decade as newer innovations have been hitting the market. They build their repair parts with special attention to detail so that they are universal. You can use them with most toilets, and that is a major plus.

The toilet flush valve is easy to install and will not take up much of your time. They know that your time is precious, and will be better spent on something other than toilet installation. So they have tried to ensure that the installation process is quick.

The toilet flush valve is built with sturdy and durable materials which will help it to last for a long time. It is made with Chlorazone red rubber which will allow the valve to withstand all chemicals without any damage. This will save you both time and money in the long run. The unique material is resistant to bacteria, chlorine, city water treatment, chloramines, hard water, rust, etc.

The flush valve has been created in the United States, and you can rely on it to have impeccable constructions. It is compatible with most toilets so that you do not have to spend your time worrying about the installation process.

You can use this toilet fill valve to replace ballcocks and old valves.  It delivers its best performance when used with TOTO G-Max and Power Gravity Toilets. Once you install the valve, your toilet will run smoothly without any glitches.

This fill valve cuts down on the sound. It comes with a fill valve, a metal refill tube clip, refill a tube, a mounting nut, a cone washer, and a coupling nut.


  • The TOTO replacement fill valve makes very little noise.
  • It comes with a twist-lock adjustment which makes installation super easy.
  • You can adjust the height according to your needs.
  • The build of the toilet valve is strong, sturdy and resistant.


  • You might have to face water-shut off issues.
8. Fluidmaster 400AKRP10 Universal, All In One, Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets

Fluidmaster is one of the most trusted brands out there when it comes to making spare parts for toilets. You can rely on them to manufacture products which are of high-quality and extremely effective. This toilet tank repair kit will make your life much easier. You can use it completely redo your toilet tank so that it starts working smoothly again.

The kit comes with a:

  • 400A fill valve
  • Sure-Fit chrome tank lever
  • Flush valve with Adjust-A-Flush flapper
  • Three bolts
  • Gasket

The fit of the valve is universal, and you will be able to use it with any two or three bolt toilet that has been manufactured in the past few years. The kit is very easy to use as you will learn once you begin the job. You can also depend on this flush valve to be long-lasting and durable. The height of the 400A toilet fill valve can be easily adjusted between 9” – 14”.


  • The kit is very easy to use and comes with simple instructions that are easy to follow.
  • The flush valve is durable and will last you a long time.
  • This repair kit will allow you 1.6 gallon per flush toilets, and that is a huge bonus.
  • You can use this kit with 2 and 3-bolt tanks or 2” flush valve toilets.
  • The product comes with a 5 year warranty.
  • The height is adjustable.


  • The kit will not work with every toilet model out there even though it is supposed to be universal.
9. WDI B3260 Universal Fill Valve- You can adjust the height easily

If you are looking for a replacement valve that will deliver great performance, then you can definitely give this one a shot. You will not regret it.

Designed to impress, this fill valve will replace your old broken one and make your toilet tank as good as new. It is easy to install which means that you will not have to spend a lot of time setting it up. You can follow the instructions without a glitch. This fill valve does not make a lot of noise as compared to other products in the market. It is quiet but packs a punch when it comes to performance.

This flush valve has been designed with careful attention to detail. The parts of the valve are confined to a compact slim tube. You can easily adjust the height according to your needs.


  • You will be able to replace your old toilets and optimize your water usage.
  • This toilet flush is very quiet and will not disturb you.
  • The instructions are easy to follow which makes the installation process simple.
  • It has a universal design which works well with most toilets.
  • You can adjust the height easily.


  • You might find it difficult to manage if you have never installed a flush valve before.
10. KOHLER GENUINE PART 1188998 2" Toilet Canister Flush Valve Kit

Original KOHLER products are a delight to work with. The company has been manufacturing toilet parts for quite a while now, and they mastered the art. One problem with KOHLER products is that they can be easily duped which is why you should always check for the KOHLER GENUINE PARTS logo.

When you are replacing your flush valve, you should not have to compromise with the performance. The engineers who created this product wanted to ensure that the combination of the valve and the toilet worked as seamlessly as the original product.

The product will also last you for a long time which means that you will be saving your money. If you have an old or leaky tank that is just not working for you, then it is high time that you get this replacement kit to do its job. It will optimize the performance of the tank and the flush.


  • The 3" canister with a 2" outlet works with the power.
  • This kit will help improve and optimize flush performance.
  • It can be used with KOHLER Cimarron tank model numbers K-4418 and K-4369.


  • This flush valve is not universally compatible.

Feel free to choose any of the flush valves listed above for an excellent experience. Worrying about broken toilet issues should not keep you from making the most of your day.

The Toilet Flush Valve Buying Complete Guide

If your toilet is broken or there is a leak, it can be sourced back to a number of reasons. The most common cause is that your valve is broken. You will need to replace the valve to restore proper functioning of the toilet.

You can take it for professional repairing services, or you can use a spare toilet flush valve to do the job yourself. You can buy an appropriate toilet flush valve online or from the market so that you can install it. This method is convenient and will save you quite a bit of money. The market has many brands to choose from, and you are likely to be confused at first. To choose the best toilet flush valve for your house, you need to be aware of the different sizes and budgets that you can opt for. To make the selection process easier for you, we have narrowed down our top choices for toilet flush valves.

The Primary Types of Flush Valves

When you are buying a toilet flush valve, you should be aware of its different types so that you know which one you need.

Tank fill valve:

This is the most common kind of valve that can be found in almost all tank-style toilets. They come in two designs, namely the side-float design and also the concentric-float design. The former has been around for over a century while the latter is still relatively new. However, more and more people are beginning to prefer the concentric model over the side-float now.

The side float valve uses a ball-valve or a ballcock which was traditionally made with copper. Manufacturers have no shifted to plastic. The concentric-float fill valve has a tower that is surrounded by a plastic float assembly. Their method of operation is mostly the same. However, a concentric float valve makes it easier to detect leaks.

Flapper-flush valve:

Flapper-flush valves have become extremely popular now. The outlet is located at the bottom of the tank is covered with the help of buoyant flapper, and it is held in place by the water pressure. When flushing, the user pushes a lever which helps to lift the flush valve from its seat. You will even find dual flush versions of this model in the market today.

Flushometer valve:

A relatively new discovery, the "flushometer" style valve has proved to be a popular choice. You can find them in commercial restrooms where space is limited as these systems do not need a tank. You can identify a flushometer valve by its chrome pipe-work and the absence of a tank. There are different ways how you can go about it.

Features to look out for:

When you are buying a toilet flush valve, you should search for the following features.


The toilet flush valve that you will be using should be made of strong and durable materials so that it can withstand the water pressure. Ideally, they should be resistant to corrosion to prevent rusting and weakening of the flush valve within just a few weeks. You do not want to be replacing your toilet flush valve frequently right? So you should focus on finding durable options when you know you have no other choice. Flush valves are usually made of different kinds of stretchy plastics which will stay put under pressure or specially crafted materials that are exclusive to companies.

Refill Rate:

Installing a slow toilet flush valve will not give you an edge over the last one that you are replacing. Efficiency should be one of your top priorities when you are looking for a new toilet flush valve. A fast refill rate will ensure that your water tank gets flushed with water faster. If you do not want to spend your time waiting for your tank to fill just because the flush valve cannot adapt to a higher speed, then you should go for one that offers a good refill speed. You will find the speed mentioned under specifications.

Noise elimination:

A good toilet flush valve will do its job silently. You do not need a toilet flush valve that creates a ruckus trying to fill the water. There are lots of flush valves available in the market today which completely eliminate noise. You will no longer be disturbed by the constant sound made by your toilet. These flush valves are excellent if you want a peaceful bathroom atmosphere. Older models still create a lot of noise, so look for newer models which come with advanced technologies.

Easy Installation:

In our busy lives, nobody has time to read up on valve installation and learn the process from scratch. All of us want to wing it once the package arrives. Hence it is important that you choose a toilet flush valve that can be easily installed. This is especially applicable for beginners who have never tried their hand at installing toilet flush valves before. There are a starter kits available in the market which come with all the tools you would need to complete the process. The better equipped a kit is, the faster your installation will go. You should find out if the toilet flush valve you chose comes with a comprehensive set of instructions.


Sometimes we look for replacement parts for models that have been long outdated or which are not serviced anymore. In these circumstances, you will need a toilet flush valve that is compatible with different kinds of toilets so that you do not have to spend your money on a lot of valves trying to compare them. Toilet flush valves are offering universal fit work with most toilet models on the market. There are some companies which release toilet flush valves only for their own toilets. You can also purchase from them if you wish to, but check the details beforehand.

Adjustable height:

A good toilet flush valve should have an adjustable height so that the user can make the necessary changes. To make the fit perfect, the valve must be adjusted according to the size of the toilet tank. So it is best if the valve is flexible when it comes to installation. Having an adjustable height will allow it to be placed correctly and that will ensure efficiency. Most toilet flush valves have an adjustable height today, but you should check its features just to be safe.

Water Conservation:

You have a duty to the environment not to be wasteful. Water is a precious natural resource, and you should do your part in trying to conserve it. There are some toilet flush valves which come with the guarantee of saving water and being more earth-friendly than its competitors. You should ideally choose a flush valve that saves water so that you can do your part. These valves have been specially optimized to minimize the usage of water and still do a fantastic job. They will also allow you to adjust the water settings so that you can control it.


When you are purchasing a replacement toilet flush valve, it means that you are already repairing a broken toilet. To ensure that you do not have to do the same thing over and over again, you should look for flush valves that come with a warranty from the company. You can trust valves that fall under a warranty period because the company will take full responsibility if something goes wrong. If your new flush valve is not working or it arrives damaged, then you will be able to lodge a complaint and get a new one without any hassle. On the other hand, warranty-free products are bound to make you lose money.

Repair Kit:

Some toilet flush valves can be bought stand-alone, while others come in repair kits. You can invest in a repair kit if you are a first-time buyer because it will give you the tools you need to do this job again if the need arises. If you are purchasing the toilet flush valve online, you should check the contents of the kit under the description of the product before you actually buy it.


1. Should I get a professional to install the toilet flush valve?

A professional will always do a great job of installing the spare toilet flush valve and preventing any mistakes. However, most flush valves come with a set of instructions about the installation and can be DIY-ed if you so wish.

2. Which toilet flush valve is likely to last?

Some models like the Korky 528T Replacement TOTO Fill Valve-Fits are made with special materials like Chlorazone red rubber which can withstand water pressure and chemicals, and they will last you a long time. Otherwise, you can go for any toilet flush valve that is made of corrosion-free materials. Avoid toilet valves that have a lot of metal parts.

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About the Author Mike Chua

Vircet is your one-stop modern products website that offers you detailed reviews based on efficiency, capacity, design, and performance. We help you make better decisions.

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