The Best Toilet Fill Valve – How To Get It – Latest Update

More often than not, you will find yourself dealing with a faulty toilet. Of course, this is given considering that you use your toilet every day. Some parts are bound to wear off or just break down with time.

Toilet problems can emerge from different parts in the reservoir or the septic tank. But the most common culprit for most problems is the toilet fill valve. This is the valve that lets in water to the tank after you flash.

Diagnosing a toilet malfunction can be daunting. Thus, detecting problems with the toilet fill valve can be confusing. We have listed below some cases that call for a toilet fill valve replacement. We have also compiled a buying guide to ensure that you purchase the best toilet fill valve that suits your toilet.

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OUR PICK
Model
Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve
TOTO TSU99A.X Universal Fill Valve
KOHLER GENUINE PART GP1083167 FILL VALVE KIT FOR ALL KOHLER CLASS FIVE TOILETS
Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets - Easy to Install - Made in USA
American Standard 7381.125#400.0070A Universal Fill Valve
Prime Status
Editor's Rating (Out of 5)
4.7
4.9
4.7
4.6
4.5
Picture
Model
Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve
Prime Status
Editor's Rating (Out of 5)
4.7
More information
OUR PICK
Picture
Model
TOTO TSU99A.X Universal Fill Valve
Prime Status
Editor's Rating (Out of 5)
4.9
More information
Picture
Model
KOHLER GENUINE PART GP1083167 FILL VALVE KIT FOR ALL KOHLER CLASS FIVE TOILETS
Prime Status
Editor's Rating (Out of 5)
4.7
More information
Picture
Model
Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets - Easy to Install - Made in USA
Prime Status
Editor's Rating (Out of 5)
4.6
More information
Picture
Model
American Standard 7381.125#400.0070A Universal Fill Valve
Prime Status
Editor's Rating (Out of 5)
4.5
More information

Last update on 2018-08-16 / Affiliate links / Images from Amazon Product Advertising API

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Cases that Call for Toilet Fill Valve Replacement

If you are not sure whether or not your current toilet fill valve is faulty, you can watch out for the following signs:

Noisy toilet

Normally, a toilet is supposed to function without an ounce of sound. As the metal parts of the toilet fill valve wear off, they become loose. They start interfering with the closing and opening of the valve which in turn inhibit the free flow of water. The resulting effect is some noise as the valve is hit by the force of the water. If you hear your toilet making some disturbing noise, it is definitely time to get a toilet fill valve replacement.

Leaking toilet

One of the most disturbing problems in the toilet is a leakage especially because it can shoot the water bill to the highest. If you notice that water is standing at the base of your toilet, you could probably be dealing with a faulty toilet fill valve. It is time you get a new one.

Partial or no refill

As said above, a toilet fill valve is a part which ensures that the tank is refilled after use. You might notice that when you flash, it does not go all the way. Among the reasons that can cause this is a low water level in the tank. The low water level is an indication that the tank is taking too long to refill or that it is not refilling at all. The toilet fill valve could be running nonstop but not a drop of water is getting to the reservoir.


How to Choose the Best Toilet Fill Valve

How to Choose the Best Toilet Fill Valve

When it is time to repair your toilet, it is paramount that you purchase the most reliable toilet fill valve. This will prevent you from going back to the shop after just a short time. But with the market full of different toilet fill valves, how do you know which one to choose? The following are a few factors that you should put in mind when buying a toilet fill valve.

The material

What makes most toilet fill valves fail is corrosion of the metal parts over time. So the fewer metal parts are in a toilet fill valve the longer it will last. So this is the first feature you should look for in a toilet fill valve. Ensure the one you pick is made from a different material such as rubber or plastic. If it must have a metal part, let it be to the minimum.

Adjustability

Sometime it would be hard to tell the correct size of the toilet fill valve that is suitable for your toilet. Luckily, there are adjustable models available in the market. Ensure you go for one that you can easily adjust to fit your toilet. Alternatively, you can choose a standard model because they are made for any toilet size. 

Type of the toilet

When buying a new toilet fill valve, you should consider the type of your toilet. This will be necessary because you wouldn't want to buy one that doesn't work with your toilet. For instance, if your toilet is a low flow toilet, you should buy a toilet fill valve that has a water inlet hole placed on the lower side.

Features Included

You would save a lot of money if you buy a toilet fill valve that comes with more added features. A model that has a water flow adjustment cap will save you from buying one separately. Also, if you choose a toilet fill valve with a shut-off valve, it will ensure that the water shut-off is rapid.


Our Top 5 Picks

Best toilet fill valve - our pick

If you put the above factors into consideration, your search for a new toilet fill valve will be made easy. But we understand that not all people will have a successful search. It may prove difficult for some to get a perfect fit for their toilets. It is for this reason that we took the liberty to list the best-rated toilet repair kits available in the market. We have listed the features for each of them so that you may know what you are bargaining for. We also look into the pros as well as the cons of these toilet fill valves so that you can be informed when making your decision. Going through the list below, I am convinced that you will spot the right toilet fill valve that will work perfectly for your toilet.

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

 

If you are the type that is impatient with a toilet that refills slowly, then this Fluidmaster 400ARHR high performance toilet fill valve is your solution. With the capability to refill twice faster than standard models, this is one of the fastest toilet fill valves available out there.


This toilet fill valve is built to fit most toilet models and has an adjustable height of between 10 to 15 inches. Besides giving you quite toilet and repairing the leakage, it will also save you water with the roller clamp feature. It comes with a 7 year warranty which stamps its durability. 

We like

  • thumbs-o-up
    It is a high performance model with a fast refilling ability compared to other standard toilet fill valves
  • thumbs-o-up
    It is made with an easy to install design and instantly fixes several toilet problems
  • thumbs-o-up
    Effectively achieves a noise-free toilet
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    Its height is adjustable and also works with almost all toilet models
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    This toilet fill valve works in an anti-siphon technology which makes it great in saving water. It fills the bowl to a standard level ensuring that the fill is neither inadequate nor excessive
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    It is solidly built from a durable material that promises to last long and also comes with a 7-year warranty 

We don't like

  • thumbs-o-down
    In spite of being a high performer; this toilet valve has been reported as being unable to completely seal the leaks
  • thumbs-o-down
    There are cases where the float gets stuck when flushing which interferes with the refilling of the tank
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    Despite being an easy to install toilet fill valve, the float sometimes comes in the way when taking the measurements
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    This makes assembling the unit a bit difficult
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    Height adjustment can sometimes fail to get to the required height

2. TOTO TSU99A.X Universal Fill Valve

 

This toilet fill valve from TOTO is one of the most reliable toilet fill valves in the market. It comes with a self-generating hydropower technology which greatly saves on electricity. In addition, it has an adjustable flow rate as well as a hydrotect feature which reduces water consumption and prevents pollution. It is a universal toilet fill valve and will fit most standard toilets.


Ideally, this toilet valve is designed for two-piece toilets but despite this, it can still work well for other types of toilet. This is because you can adjust the height to the size of your toilet. 

We like

  • thumbs-o-up
    This toilet valve features TOTO's tradition of making reliable styles of traditional, transitional and contemporary styles
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    Being a universal toilet fill valve, it works with most toilet types
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    This toilet valve saves you money by reducing electricity usage with its self-generating hydropower system
  • thumbs-o-up
    It is efficient in solving common toilet problems such as leaking and running toilets
  • thumbs-o-up
    This toilet fill valve is fitted with a Hydrotect feature which means that it saves water and keeps pollution at bay
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    The packaging comes with clear and detailed instructions to guide you through the installation
  • thumbs-o-up
    It is made from a durable plastic material

We don't like

  • thumbs-o-down
    Though it works for most toilets, the flow rate system only gives best results when fitted with toilet systems from TOTO
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    Installation is a bit difficult but with a manual you eventually get it done
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    This toilet fill valve sometimes achieves a fluctuating refilling speed so sometimes it will be fast and other times slow down
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    Though the height is adjustable, it can sometimes prove difficult especially if you are working with other toilet systems other than TOTO's

3. KOHLER GENUINE PART GP1083167 FILL VALVE KIT FOR ALL KOHLER CLASS FIVE TOILETS

 

Kohler is known to make high-performance plumbing products that are durable and this product is not an exception. It is made of high quality plastic and rubber which do not corrode with time. Thus, this toilet fill valve will serve you for a long time.


Among the toilet fill valve types, this model from Kohler stands as one of the best in the market. This is because it is so easy to install. It is also adjustable to fit almost all Kohler toilets and all class five toilets. If the shank on your toilet is black, this is the product for you.

We like

  • thumbs-o-up
    This fill valve comes with clear directions so you can never pick a wrong product for your toilet
  • thumbs-o-up
    The absence of metal parts makes it durable so you will not keep going back to the shop. Also being made by two plumbing products masters, Kohler and Fluidmaster, it is definitely a great product
  • thumbs-o-up
    This toilet fill valve is among the quickest to install toilet fill valves out there
  • thumbs-o-up
    This toilet fill valve is among the quietest toilet fill valves in the market
  • thumbs-o-up
    The flow system on this toilet valve is adjustable so it will work perfectly with most toilet systems

We don't like

  • thumbs-o-down
    This toilet fill valve is not returnable so you have to be careful to get the fitting right when you buy it
  • thumbs-o-down
    Installation proves a bit difficult in other toilet types other than Kohler and Fluidmaster toilets
  • thumbs-o-down
    This toilet fill valve has been reported to fit imperfectly on other toilet systems which impede on the functionality
  • thumbs-o-down
    The flow system only works well in Kohler and Fluidmaster toilets. Though it may fit other toilets, it does not work perfectly for some

4. Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets - Easy to Install - Made in USA

 

If you are looking for a toilet fill valve to replace the old one in your toilet, then this product is your best bet. This toilet fill valve can replace a variety of fill valves including ones from earlier technologies such as ballocks.

 
You can install this Korky toilet fill valve without any tools to achieve a noise and leak free toilet. Other problems solved by this product include a running toilet as well as a weak or a no filling fill valve. The package comes with a refill tube, metal refill tube clip, mounting and coupling nuts, tamper proof key, and a washer.

We like

  • thumbs-o-up
    Made with an advanced and improved technology, this toilet valve is one of the quietest fill valves available in the industry
  • thumbs-o-up
    With the clear and detailed instructions in the package, installing this toilet fill valve becomes easy. In fact, you require any installation tools to get it done
  • thumbs-o-up
    This toilet fill valve perfectly solves common toilet problems including leakage and refilling problems
  • thumbs-o-up
    This Korky fill valve is universal and its height is adjustable which makes it ideal for most types of toilets
  • thumbs-o-up
    You can easily service this toilet fill valve without necessarily removing it from the water which also prolongs its life

We don't like

  • thumbs-o-down
    When it comes to speed, this toilet fill valve lags behind compared to other models in the market; there are several complaints about getting stuck for some time before resuming refilling
  • thumbs-o-down
    Having some metal parts means that it is subject to corrosion which weakens its functionality over time
  • thumbs-o-down
    Only works well with TOTO G-MAX and power gravity toilets

5. American Standard 7381.125#400.0070A Universal Fill Valve

 

One of the most important aspects that a toilet fill valve should have is the ability to save on water. Well, this Fluidmaster 400A high performance toilet fill valve achieves just that with a water control assembly technology. The water connection point is made of brass which makes it connect perfectly without cross threading. This seals of any leakage completely.


This product is one of the best rated toilet repair kits that comes with a refill tube and clip, coupling nuts and washer as well as a lock nut and shank washer. It is a kit that will have your toilet fully functioning in no time.

We like

  • thumbs-o-up
    This toilet fill valve is easy to install plus all required installation hardware is provided. Not forgetting that instructions are clear and easy to follow. You have it running in just a couple of minutes
  • thumbs-o-up
    After screwing it in, it instantly locks away the leaks and achieves a completely quiet toilet
  • thumbs-o-up
    It has an adjustable height which makes it ideal for many toilet types including those that require low connections
  • thumbs-o-up
    The brass water control assembly feature that comes with this toilet fill valve greatly saves on water
  • thumbs-o-up
    This toilet fill valve is one of the most reliable toilet fill valves in the market

We don't like

  • thumbs-o-down
    Adjusting the water level is sometimes a bit tricky
  • thumbs-o-down
    This toilet fill valve is a bit pricey compared to other brands in the market
  • thumbs-o-down
    Only works with toilets made by American Standard
  • thumbs-o-down
    The diameter on the hose is smaller so it takes longer to refill the tank compared to other toilet fill valves

Final Verdict

The toilet is a necessity you can't afford to live without. Thus it should be working all around the clock. But malfunctioning is something you can't predict, and at one point or another, you will find your toilet breaking down. Even if this is the case, it is necessary that you get it up and running again in the shortest time possible.

In addition, the toilet business is meant to be a private affair. But it can be difficult to achieve this if you are dealing with a noisy toilet. Your toilet should be as quiet as possible even when used at night when everything is all silent. The toilet should also refill fast considering that you have a busy lifestyle and can afford to waste even a second.

Considering the above, the toilet fill valve that you purchase should be able to instantly restore your toilets functionality. It should also be able to eliminate all the noise in your toilet while refilling the tank as fast as possible.

With that in mind, we pick TOTO TSU99A.X Universal Fill Valve as the best toilet fill valve. This is because it achieves a quiet toilet and the refilling speed is fast. Though the installation can be a bit difficult, the package comes with a manual that helps you get it done smoothly. In addition, you get so much more with this toilet fill valve. Take for instance the self-generating hydropower system that goes a long way in saving on electricity. Not forgetting the hydrotect feature that saves water. The most appealing thing about it is that it is gentle to the environment by keeping pollution away.

With the above review, you are now equipped with information that is necessary to help you get the most reliable toilet fill valve. If you follow it thoroughly, you will not go back to the shop in the near future.

Ethan Johnson
 

I’m Ethan Johnson. I’m a mechanical engineer, and I’m passionate about Home Improvement. I hope my skills and experience can help you remodel your home by turning simple, inexpensive, and innovative ideas into easy tasks that you can DIY! So no need to go too far, just read on and you’ll be ready to get the ball rolling.

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