Best Toilet Fill Valve

The toilet fill valve is a device which is used to sense the level of water in the toilet tank, to 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 toilet fill valve uses a float which is used to turn the water on and off.

There are basically some variations of toilet fill valve which are sold in the market. It is a very useful thing for our day to day life. 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 best 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.

Top 5 Toilet Fill Valve Compared:


Product Name Price Our Rating
Fluidmaster Toilet Fill Valve and Flapper Repair Kit ** ?????
TOTO TSU99A.X Universal Fill Valve *** ????
KOHLER Genuine Universal Fill Valve Kit *** ????
Korky QuietFILL Toilet Fill Valve and Flapper Kit ** ???
American Standard Plumbing Parts Toilet Fill Valve ** ???


Best Toilet Fill Valve Review:

1. Fluidmaster Toilet Fill Valve and Flapper Repair Kit

Best Toilet Fill ValveFluidmaster 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 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 fill 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.

2. TOTO TSU99A.X Universal Fill Valve

toto toilet fill valve

TOTO TSU99A.X Universal Fill valve is one of the great toilet 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.

The 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.

3. KOHLER Genuine Universal Fill Valve Kit

kohler toilet fill valve

Kohler Genuine Fill Valve Kit is as one of the well-known valves in the market because of its high quality and long durability. It is basically an adjustable fill valve which 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 it’s durability has made it one of the best product in the market.

4. Korky QuietFILL Toilet Fill Valve and Flapper Kit

Korky Toilet Fill Valve

Korky Toilet Fill Valve and Flipper Kit is there to fix your no/slow refilling, running, and noisy toilets. The Korky QuietFILL Toilet Fill Valve is quieter than other fill valves in the market. It has a universal design which fits into all brands and features of toilets. It has a wide range of adjustability to fit most 2-piece and 1-piece toilets.

This valve is very easy to install and very adjustable. You will not need any tools to install it. It’s innovative twist-lock adjustment make its installation easy. This toilet fill valve adjusts from 7-3/4 inch to 13-1/2 inch. This kit package includes a fill Valve, a premium flapper, a refill tube, a metal refill tube clip, a mounting Nut, a cone washer, a coupling Nut, a flapper and instructions.

5. American Standard Plumbing Parts Toilet Fill Valve

American Standard Plumbing Parts Toilet Fill Valve

This toilet fill valve repair kit is one of the best toilet fill valves in the market out there. You can use this universal toilet valve to replace your old faulty toilet valve. The brass water connection helps to stop cross threading, potential leaks in installation and ensure a secure leak free connection. It’s very easy to install. Install it and have your toilet back to working the way it was designed to.

The toilet fill valve repair kit comes with toilet valve, plug, seal, gasket, and lock nut. It can be easily adjusted and you can get required height requirements as per your need. This toilet valve kit is of great use and it will work with all bottom entry connections as well. This could be the perfect solution for all your toilet problems regarding fill valve.

Some Tips for You to Choose the Best One:

Toilet don’t seem so significant to us but it’s very essential for our daily life. And 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 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.