Best Toilet Fill Valve For 2023 – Complete Guide & Review

The toilet fill valve is a device that is used to sense the level of water in the toilet tank. It let water flow into the tank when it drops during a flush, and to shut off the water flow once the tank is full. It is such a device that allows the tank to fill with water to the correct level. Before flushing, the water is stored in the tank. The fill valve uses a float which is used to turn the water on and off.

There are basically some variations of toilet fill valves that are sold in the market. It is a very useful part of the toilet. So among all these variations choosing the best toilet fill valve is quite difficult.

But it’s not an impossible task to do. To select the perfect toilet fill valve out there, you just need to know some basic things and facts about these fill valves. Then before buying you must keep all those in your mind and thus you can buy the best one.



At a Glance: Here are the best toilet fill valve you can buy in 2021:

  1. Best overall: Fluidmaster Toilet Fill Valve and Flapper Repair Kit
  2. TOTO TSU99A.X Universal Toilet Fill Valve
  3. KOHLER Genuine Universal Toilet Fill Valve Kit
  4. NEXT BY DANCO HydroClean Water-Saving Toilet Fill Valve
  5. Fluidmaster 400AKRP10 Universal Toilet Tank Repair Kit

10 Best Toilet Fill Valve Review:

After putting in hours of extensive research, we have rounded up 10 of our top picks for you. So without further delay, let’s jump right in!


1. Fluidmaster Toilet Fill Valve and Flapper Repair Kit

best toilet fill valve

Fluidmaster Fill Valve and Flapper Kit is there for you to fix the two most common causes of a running toilet. The kit is included with the iconic Fluidmaster 400A fill valve which is the most popular toilet fill valve in the world.

The kit also includes a solid frame flapper which is used to align with the tank drain for a consistent and powerful flush. You can install the whole kit within ten minutes or less. So it’s installation process is very easy.

This toilet fill valve and flapper repair kit is a great replacement toilet kit which can solve most of the common toilet fill problems, with the included 400A toilet fill valve anti-siphon design.

The reliable 501 2” flapper helps to prevent leaks, featuring a solid frame build and corrosion resistant materials. This kit is very easy to use and highly durable as well.

This toilet water valve is used for using 3.5 gallons per flush toilets or larger. This is the perfect solution for fixing a noisy and running toilet.


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2. TOTO TSU99A.X Universal Toilet Fill Valve

TOTO TSU99A.X Universal Fill Valve

TOTO TSU99A.X Universal toilet fill valve is one of the great fill valves available in the market. It is a great replacement and solution for your toilet fill problems.

It is basically for two-piece toilets but it can also be used in any types and brands of toilet which is the best thing about it. You just need to grab the right one for you.

This TOTO toilet fill valve comes in universal size and can be fitted with any standard toilet. It has got self-generating hydropower.

It has got many sorts of design as well. TOTO’s design continuum features unique traditional, transitional and contemporary styles. For two-piece toilets, you can adjust the flow rate according to your need. You can also adjust the height as well. This fill valve can be a perfect solution for you.


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3. KOHLER Genuine Universal Toilet Fill Valve Kit

kohler genuine part GP1138930 universal fill valve kit

This Kohler Genuine Fill Valve Kit is in our toilet flush valves list because it is a well-known valve in the market because of its high quality and long durability.

It is basically an adjustable fill valve that can be used in various KOHLER toilets. The toilet fill’s size is for most Kohler toilets. You can get this fill valve in various colors.

The valve kit is mainly made of plastic. All required washer locknut and clip come inside the package. The installation process is very easy and its durability has made it one of the best products in the market.


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4. NEXT BY DANCO HydroClean Water-Saving Toilet Fill Valve

NEXT BY DANCO HydroClean Water-Saving Toilet Fill Valve Review

This product can be a good option for you if you are looking for an affordable and good-looking toilet fill valve. This universal valve can be fitted to any standard size toilets.

The adjustable height can be adjusted from 11 inches to 13.8 inches. This fill valve kits can solve the problem of water loss by preventing both miscalibration and leaks.

It can easily detect leaks and clean the tank. As far as the installation is concerned, this toilet valve can be easily installed and it can be a very good option for your toilets.


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5. Fluidmaster 400AKRP10 Universal Toilet Tank Repair Kit

fluidmaster 400a review

This fluidmaster 400 model is one of the best options that you can avail from the market. because it has got all the things that you might need to make your toilet look new.

This design fits almost all the toilet models but it is for 2-inch flush valve toilets only. This fluidmaster 400a toilet fill valves can be easily adjusted from 9 inches to 14 inches.

This is a complete solution for your toilet and it is also easy to install. You don’t have to hire any professional to install this and the fill valve is very much efficient.


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6. Kohler Genuine Part Gp1083167 Silent Fill Valve Kit

Kohler Genuine Part Gp1083167 Silent Fill Valve Kit

Kohler Genuine Part Gp1083167 Silent fill valve kit is full of many attributes. Some of the attributes are very much unique and hard to find in other fill valves.

This why this fill valve is one of the best in the market. The most attractive feature of this toilet fill valve is that it fills the tank without making any sound. There are various fill rate inserts which optimizes the performance and help to conserve water.

This Kohler fill valve is adjustable and you can adjust it to any heights. The installation is so easy that you can do it by yourself.


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7. Korky 528MP QuietFILL Platinum Fill Valve

Korky 528MP QuietFILL Platinum Fill Valve Review

Korky 528MP QuietFILL Platinum Fill valve is such a toilet fill valve that is designed to fit 99% of the toilets. It fit the toilets of all brands and sizes. The toilet fill valve fixes the problem of no/slow refilling, running and noisy toilets.

It is quieter than most other toilet fill valves and ideal for almost all of the toilets. The installation procedure is very simple and quick too. You don’t need any sort of tools to install it.

The updated technology used in this fill valve can maximize the toilet’s original performance.


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8. Fluidmaster 540AKRP5 3-Inch Adjustable Toilet Flush Valve Repair Kit

Fluidmaster 540AKRP5 Adjustable Toilet Flush Valve Kit

This fluidmaster flush valve is one of the most sold fill valves in the market and the main reason behind it is its useful attributes. This fill valve has 3 inch adjustable flapper which optimizes water savings and performance.

It can be used in most of the toilets. The toilet fill valve has a tube which is adjustable and it can be easily adjusted from 5.5 inches to 8-inch toilets.

It ensures the maximum performance of the toilet and the fill valve can be easily installed. These unique and useful features has made this product popular to the customers.


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9. Plumbcraft Adjustable Anti-Siphon Toilet Fill Valve

Plumbcraft Adjustable Anti-Siphon Toilet Fill Valve Review

This is the perfect toilet fill valve solution for your toilet if you are looking for one. This fill valve can be used for any models or sizes of toilet. The Anti-siphon toilet fill valve can be adjusted from 8 inch to 13 inch after installation.

If you install this toilet fill valve then your toilet will get the right amount of water without making any noise. This fill valve will also save water which shows it’s efficiency.

So, this one is an efficient and affordable toilet fill valve that can bring your toilet up to code.


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10. Cosybreeze 400AH PerforMAX Universal Toilet Fill Valve

Cosybreeze 400AH PerforMAX Universal Toilet Fill Valve

The Cosybreeze 400AH PerforMAX Universal High performance toilet fill valve is a toilet repair part that can be fitted in most toilet models. It is height-adjustable according to your needs. It is designed to generate 2X greater refill rates than other fill valves without making any sort of noise.

Its height can be easily adjusted from 10 inch to 15 inch. As this toilet fill valve helps to prevent excessive or inadequate bowl fill levels so you can customize your flash accordingly.

The installation process of this toilet refill valve is very simple and it also helps to save water. So it is the efficiency of the toilet fill valve that has made it popular to the people.


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Tips for Choosing a Toilet Fill Valve


Tips for Choosing a Toilet Fill Valve

Toilet doesn’t seem so significant to us but it’s essential for our daily life. And the toilet fill valve is another necessity. So before buying this, you need to consider a lot of things to get the best one.

  • Measure the hole in the tank lid that would receive the button. It’s better to have a diameter of 16–50mm.
  • Check the height of your tank by using a tape measure.
  • Theoretically, the diameter of the outflow hole of the tank should be 60 mm. Although it is often standard yet you should check the diameter of the outflow hole.
  • Before buying a toilet fill valve you must check that whether your valve is located on the side (lateral) or underneath the tank.
  • The toilet fill valve mechanisms have an adjustable stirrup which helps to adjust the height under the tank lid. So check it before buying a fill valve.

You may choose a one- or two-button mechanism for you. Although both of them are of same capacity but the two-button models are more economical.


Final Verdict


I hope that I am successful enough to make you understand that what you need to check before buying a toilet fill valve and which are the best in the market now.

So whenever you know that you need to replace your toilet fill valve then make sure you choose the best toilet fill valve which you can afford, like those I have reviewed here.

Because you can’t go wrong when you are purchasing these. Lastly, keep in mind the important things I have mentioned to make a toilet fill valve a quality one.

5 thoughts on “Best Toilet Fill Valve For 2023 – Complete Guide & Review

    • Thank you very much for your information and straight to the point answers. You are more helpful than my experience here at this particular big box home improvement center.

  1. You say yours is best, very good. but I have a valve that fits in the bottom of the tank……no float, only an over flow line…. who makes it???????

  2. I feel the Korky PRO version (528PRO) beats them all. It looks better built than the 528MP or the quality equipment Toto branded version produced by Korky. Plus, it contains a gauge and chart for setting the water amount in the bowl; which does not included with the 528MP. The PRO expenses more than the MP, but fewer than the Korky T or GT versions, and much less than the Toto branded one.

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