The Best Toilet Fill Valves For 2021: Reviews And Top Picks
Leaky toilet fill valves can cause more problems than just running water. You will soon notice an increase in your water bill due to all the wasted water. You’ll be annoyed if you have the need to pull the top of the tank off to check the valve.
It is easy and quick to change your toilet fill valve. This will make your toilet function and feel like new again. You might end up frustrated by a poorly installed fill valve or parts that don’t fit.
We want to spare you the hassle of searching for the right toilet fill valves.
Here’s A Quick Comparison Of Our Favorites
Review Of The Best Toilet Fill Valves 2021
All of the flush valves that we tested let your toilet flush. The Fluidmaster 400AH High Performance Toilet Fill Valve was our favorite because it offers the best universal fit and the lowest price. It is cheaper than units from big brands like American Standard and Kohler, but many of these brands use Fluidmaster valves instead and simply add their cap to the top for a huge price increase.
The valve can be adjusted from 10-38 cm to fit many toilets of all manufacturers, including old toilets and dual-flush toilets. It fills the bowl quicker than other valves but it is also slightly noisier because its high-performance valve.
This valve is more water-efficient than other types. It has a water-saving roller clamp which optimizes your toilet’s water use. The valve comes with a seven-year warranty, so you know you won’t need to repair it again anytime soon.
Pros
- Affordable pricing
- Height adjustment is available from 25 cm to 38 cm
- A seven-year warranty is included
- Roller clamp water-saving
- Universal fit fits most toilets
Cons
- It is not the most quiet refill
We often look for the best part to do the job so that we can return to our daily lives. We have replaced many toilet valves, and seen both cheap and expensive ones fail, and we believe that the Korky 528 Toilet Fill Valve offers the most value for money.
This is the lowest-priced toilet valve we have ever seen. It is a high-quality part that we have never had to trouble despite its low price. It is universally compatible and should fit in all toilets, even those that are two-piece or one-piece.
This valve can be adjusted from 7.75 to 34 cm so you can find the right height for your toilet.
QuietFILL technology is included to make your toilet sound less loud than a vacuum. It fills a little slower than other valves, but it is still quick enough to need a second flush.
Pros
- Very low price
- Adjustments from 20 cm to 34 cm
- Works with older and newer toilets
- Both one-piece and two-piece toilets will work.
- QuietFILL technology
It can be difficult at first to compare fill valves for toilets, as they are hidden in the toilet tank. You don’t need to be able to see the fill valve in action to notice the difference. According to the Kohler Gp1138930 Silent Fill Toilet Fill Valve, it provides a quiet flush and fills up after flushing. It is actually one of our quietest valves.
This is not just a quiet filling valve. The included inserts make it water-saving and optimize the valve’s performance.
It is a genuine Kohler part but it doesn’t necessarily mean that it will only work with Kohler toilets. This universal fitting will fit most toilets that have adjustable heights to accommodate different water levels. The Kohler name makes it a little expensive, so we recommend the Fluidmaster for most situations.
Pros
- Quiet operation
- With included inserts, you can maximize performance
- To work with many toilets, height can be adjusted
- Conserve water
- Universal fit also works with non-Kohler toiles
- It is easy to install without any plumbing experience
Cons
- Installation can be complicated by inserts
This premium American Standard toilet fill valve is perfect for American Standard toilets. However, its universal design means it can be used with any toilet made by other manufacturers. This can be used to replace older style ball flots, which are more susceptible to problems.
Although the American Standard toilet fill valve uses the Fluidmaster 400A valve for construction, it is nearly twice as expensive. We have not used it and can’t see the major benefits that come with the American Standard valve. The American Standard brand name is stamped on the top caps. This makes the price rise seem very reasonable.
There are no other differences between this valve, and the Fluidmaster 400A. It might be worth buying the American Standard fill valve if you have an American Standard toilet. This will ensure a perfect fit. You’ll be better off spending less money for the fluidmaster of almost identical quality.
Pros
- Universal fit is compatible with many toilets
- Replaces old style ball floats
- Ideal for low-flow toilets
The Hibbent Toilet Fill Valve TFV1820PUS is universally compatible with all toilets. This valve is unique in design and doesn’t look like any other on the market. That is probably why it is so expensive.
This fill valve is very adjustable. It can be extended from 7.8 to 33 cm so that it will fit many toilets. The real attraction is its low noise operation and water conservation. This valve will reduce water consumption and fill it much more quietly than other types.
We discovered that the valve doesn’t have the hose clip to overflow. So we had to remove the old valve from the valve and jerry-rig the valve. The Hibbent valve was unable to be installed due to this flaw. However, it could have been a strong contender if all of the pieces were included.
Pros
- There are many options for adjustment from 20 cm to 33 cm
- Universal design works in most tanks
- Fills very quietly
- Conserve water
The Danco HC660Water Saving Toilet Fill Valve has a few interesting features that we haven’t seen on other fill valves. However, they are not the kind of features that would make up for its flaws.
Some of these features may still be useful, such as the mini valve, which automatically adjusts the level of the filler when necessary. The valve also has jets that spray water into it to keep it clean. The valve will also make an audible alarm sound if it detects a leak.
This valve won’t work with all toilets. This valve is not recommended for low-flow toilets. Because it is only adjustable between 11 and 35 cm, it doesn’t have the flexibility to fit many toilets. It would be frustrating to remove your toilet only to discover that the valve doesn’t work. We recommend looking for a valve that has more adjustability and will fit a wider variety of toilets.
Pros
- Mini valve built-in adjusts the level of the refill as required
- When there is a leak, it emits an audible alarm
- The tank’s interior can be cleaned with jets
Cons
Plumbcraft Antisiphon Toilet Fill Valve is a great choice if you are more concerned about conserving water than having a quiet, easy-to-install fill valve. Although it was the most expensive option we tested, it is not our favorite.
This fill valve’s most striking feature is the ability to swap out water flow adjustment caps so you can decide how much water to conserve. This valve is also one of our most adjustable, measuring between 8 and 33 cm. It can be used with almost all toilets.
It sounds great so far, but it won’t sound that good when you actually try to install it.
This valve is much easier to install than the other ones we tested. To adjust the height of the adjustment mechanism, you will need to reach into the tank. You will need to tighten the wingnut washer at the bottom by hand.
This valve is not only difficult to install, but it is also very loud. Although this may seem minor, it can be quite annoying if the toilet is close to the bedroom.
Pros
- Adjustments from 20 cm to 33 cm
- Universal fit works with all toilets
- Waterflow adjustment caps increase water conservation
Cons
- It is one of the most expensive options.
- It is difficult to adjust the tank’s height from within.
- We found that they are much louder than any other fill valves.
The universal design WDI Fill Valves fits most toilets and has a height adjustment of 8.25 to 31 cm. This fill valve will fit most low-flow toilets with shallow tanks. However, this price is not justified. For a lower price, there are many fill valves that offer just as much adjustment.
Worse, the valve is much louder than any other we tested. This valve is loud enough to make it sound like water is rushing into the room. You might assume that this means that the tank fills quickly. However, it fills slower than other valves.
The biggest problem with this valve is the inability to seal completely. We could still hear water leaking through the valve after the tank was filled. Although it might not seem like much, over time that water can be a lot more.
Pros
- Universal design fits in all toilets
- Height adjustment from 21 cm to 31 cm
Mansfield Plumbing is a well-known American manufacturer of quality products. We are not as satisfied with their toilet fill valve. The design makes it difficult to install, making it a daunting task.
Before ordering this fill valve, ensure that your toilet is compatible.
This valve is not compatible with all toilets and has a limited compatibility. The first one we received was defective. This is not what we expect from Mansfield.
We noticed that the adjustment screw was threaded directly into plastic during installation. This made us question its longevity. We can’t recommend this valve due to all these issues and many other better options.
Pros
- Made in the USA
TOTO is a well-known premium toilet manufacturer. Their products are often a bit expensive, and the TSU99A.X adjustable toilet fill valve is no exception. This is not a premium product priced to its value. This seems more like an overpriced, overestimated plastic component.
The valve can be adjusted in height and has a standard 7/20cm connection. It should work with most toilets but is only made for TOTO toilets. We received the first one, and it was not working. This is a very disappointing part for this price.
When we installed the second one, it worked. After a few weeks it became finicky. We had to remove the lid and tap on the tank to get it to fill. It is covered by a 1-year warranty. Compare that to the Fluidmaster 400AH, which comes with a seven-year warranty for half the price. It’s easy to see why Fluidmaster is better than the TOTO.
Pros
- All TOTO tanks can be adjusted in height
Cons
- For what you get, way too expensive
- Sometimes, you need to tap it to make it fill.
- The first was dead upon arrival
- It isn’t very impressive for a one-year warranty
Buyer’s Guide
Many different brands offer hundreds of different fill valves for toilets. There are many different types of toilets. You can find the right one for you, your family, and your budget. Although it may seem trivial, if your toilet valve is constantly running, you will quickly find yourself paying more for water and the inconvenience of hearing the water gurgle every time you go to the bathroom.
This buyers guide is designed to assist you in your search to find the best toilet fill valve.
Fit And Compatibility
Before ordering a toilet valve, it is important to make sure that it fits your toilet.
There are few things more frustrating than having to take apart your toilet and find out that the new valve doesn’t fit.
Some valves can be made specifically for certain models and are designed to fit specific toilets. These valves and the toilets that they fit will usually be from the same manufacturer. This is to ensure that you are not spending too much on their products. You should ensure that you are purchasing the right valve for your toilet brand, such as American Standard or Kohler.
Fill valves can be used with almost any toilet because they are universally compatible. The fit may not be as universal as you think. To find out how deep your tank water is, you will need to measure it and then get a fill valve that adjusts according to that measurement. Low-flow toilets can only hold 8 inches of water. A valve that is too low to adjust will not work in the tank.
Operating Volume
The valve fills the tank after you flush the toilet. This part of the process may not have occurred to you, but you will notice it more often if you change to a quieter valve. Some valves fill louder than others.
Although it may not seem important, many people have their master bathroom adjacent to their master bedroom. You will have to be able to hear the loud valve ringing for several minutes every time you go to the bathroom. A loud valve could even wake your partner if they are a light sleeper.
Water Conservation
Some valves have adjustable water conservation tools, which allow you to fine-tune how it operates. These valves can often offer significant reductions in water consumption. Some valves claim to reduce water usage by as much as 38% during tank refills. This can lead to significant savings in your water bills over time.
