Best Toilet Fill Valve: In Depth Reviews and Buying Guide

If you are here, it means you most likely have a toilet valve problem. It is pretty common because the valves are the first to go. We use the toilet several times a day, which can put a lot of stress on the filling valves. This requires them to be top quality in order to withstand the daily attrition and, unfortunately, not all of them are. This review is meant to help you find out best toilet fill valve options.

5 Best Toilet Fill Valves 2018 Compared

ImageNameShipping Weight (Pounds)Dimension (Inches)Price
Fluidmaster 400CRP14 Toilet Fill Valve and Flapper Repair Kit1.023.5 x 6.1 x 13.9Check Latest Price
Fluidmaster 400AH High Performance Toilet Fill Valve0.703.1 x 12.5 x 4.5Check Latest Price
Kohler Genuine Part GP1083167 Fill Valve Kit0.2517.0 x 5.0 x 3.5Check Latest Price
Korky 528T Replacement TOTO Fill Valve0.452.4 x 10.0 x 4Check Latest Price
HydroClean Water-Saving Toilet Fill Valve0.803.0 x 3.2 x 12.8Check Latest Price

In addition:

  • How to choose the best one?
  • What are the benefits?
  • How to replace and clean it?

Without further ado, let’s jump right in!


Best Toilet Fill Valve in 2018 Reviews


1. Fluidmaster Toilet Fill Valve and Flapper Kit

Thanks to its highly innovative design and proficiency, the Fluid 400CRP14 Toilet Fill Valve is perfect for your Fluidmaster 400CRP14 Toilet Fill Valvebathroom. It has been made to cover the most common toilet problems with extreme effectiveness.

Its universal design is made to accommodate all toilet sizes and it is very easy to install and use. This valve can be easily adjusted between 9” and 14”, covering most of the toilet requirements.

At the same time, the flapper is even compatible with 2″ flush valves, making for a complete installation kit. Aside from its top-notch design and durability, the Fluidmaster can be installed in less than ten minutes.

It will solve and prevent leaky flappers and broken or cracked fill valves for a long time after installment. It is because of the solid, corrosion resistant frame and the high-quality material used in its construction. The optimized performance and the quality of the design make for one impressive toilet kit.

With a reputation that spreads over 90 countries, the Fluidmaster, combined with the 2” toilet flapper repair kit, make for one impressive option. It will keep your toilet functioning in peak condition for longer and will quickly solve and prevent any problems that may arrive.


2. Fluidmaster High Performance Toilet Fill Valve

This Fluidmaster is probably one of the most powerful fill valves currently available. The PerforMAX design Fluidmaster 400AH High Performance Toilet Fill Valvemake it incredibly easy to install, it fits most of the toilet models available and it has an adjustable height, between 10” and 15”.

The same PerforMAX technology is used to pump the refill rate to 2 times greater, which saves time and, ultimately, money. It comes with an adjustable roller-clamp to control the water volume and it is superior to any outdated, noisy filling valves you might have. It is all about effectiveness and innovation and Fluidmaster 400AH nails them both.

And the fact that it is incredibly silent is probably one of its greatest assets. This great toilet tool is the finest fill valve for high pressure flushing that keeps the sound to a minimum. It is, by all standards, among the most effective toilet fill valves money can buy.

It delivers high-volume water filling, it is robust and solid and it is compatible with most of the big toilet brands. As long as you avoid excessive toilet bowl filling, the PerforMAX technology guarantees for an optimum efficiency. Fluidmaster 400AH is the king of its kind and for good reasons.


3. Kohler Genuine Fill Valve Kit

Another universal fill valve is offered to us by Kohler, one of the largest manufacturers in the world. The Kohler Kohler Genuine Part GP1083167 Fill Valve KitGenuine Part GP1083167 Fill Valve Kit is made for all types of toilets.

Fully adjustable and genuinely innovative, the Kohler fill valve looks and feels original and effective. It allows for a full refill of the toilet tank in less than 40 seconds and it is extremely easy to install. The overall impression of  this fill valve is pristine.

Its simplicity is only matched by its durability, as Kohler is mostly defined by longevity above everything else. The fact that it cuts down on water usage, while significantly lowering the filling time is what makes this piece a must-have for your personal toile.

This is the absolute best toilet fill valve from Kohler, combining the material durability with the innovative and efficiency-oriented design. Kohler Genuine Part fill valve definitely lives up to the expectations.


4. Korky Replacement Fill Valve

Just as the name suggests, Korky 528T fill valve has been originally designed to completely replace Power GravityKorky 528T Replacement TOTO Fill Valve Toilets, as well as the G-Max technology. And it certainly succeeded in doing so. Korky is one of the best fill valve options for hard water.

It requires no tools for installation, it is extremely user friendly and highly effective. It comes with twist-lock mechanisms that make the installation process that much easier and it comes with all the necessary parts at once.

It is designed for most types of toilets and it manages to take things to a new level. Slow-refilling toilet valves are now a thing of the past, as the new addition to the bunch takes things up a notch.

Aside from delivering higher volumes of water, Korky is also incredibly silent, compared to its older counterparts. The solid construction material only adds to the general impression and the design is simple and elegant. Korky 528T fill valve is one of the best additions to everyone’s bathrooms.

A must-have tool to increase your toilet’s efficiency by tenfold.


5. Next by Danco Water Saving Toilet Fill Valve

The HC660 HydroClean Tube is the ultimate toilet fill valve. It represents the epitome of innovation and efficiency, Next by Danco HC660 HydroClean Water-Saving Toilet Fill Valveas it takes things to a level rarely seen with other brands.

This piece contains a mini-valve to detect and react to even the tiniest water leaks automatically. On top of that, you can easily adjust it to deliver the amount of water you need with each flush. A water-saving mechanism highly valued among users.

HydroClean can be adjusted to heights between 11” and 13.8” and it can be installed very easily. It is also extremely useful in cleaning the tank regularly, in order to accommodate the standard cleaning requirements.

It refills a lot quicker than other similar fill valves, which reduces the waiting time considerably, it is less loud and overall more effective than previous versions.

It is robust, resistant and it does its job perfectly.


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Buying Guide of Toilet Fill Valves

There are, overall, 3 problems you have to deal with, as a toilet owner:

  • Leaky valves, causing unnecessary water consumption
  • Loud water filling
  • Low water volume being pumped through the valves

Each of these problems can lead to quite a few problems, including a larger money drain. Another important aspect could be the fact of poor valve design. Since these are mobile parts, it is crucial for them to be constructed from solid, quality material.

What can you do to avoid and overcome these problems? Simply put – Look for upgrades. There are always better versions of filling valves you can find, but it is important to know the criteria by which to choose them. And the most important are:

  • Material durability
  • Quiet water filling system
  • Innovative features
  • Water saving mechanism
  • Faster water filling rate
  • Leak proof seal construction

With these features available, you will know for sure your fill valve is exactly what you need.


What are the Benefits of Best Toilet Fill Valve

The main issue here is that most people won’t even realize the importance of good toilet fill valves. Since they don’t usually spend too much time in the bathroom, it won’t hit them until problems start appearing. In reality, having an optimum, high-quality toilet valve can make all the difference in the world.

The best toilet fill valve will deliver the following benefits:

  • Put an end to toilet leakage problems
  • Lower the amount of water being wasted
  • Allow you to adjust its height and water volume being used
  • Quieter than its alternatives
  • Fills your tank faster

Simply by keeping these in mind and you can definitely see the plusses. And, since not all toilet valves come with the same features, these will also serve as a guide on how to find the best one for you. The most advanced models will even come with built-in sensors, letting you know of any water leaks present.

It is not a matter of “Should I get one?”, but one of “Which should I buy?”


How to Replace the Toilet Fill Valve


Replacing a toilet fill valve is one of those things that everybody needs to learn how to do themselves. It is not a difficult process, but rather a complex one, since there are a few steps to follow. These include:

  • Shutting off the water by turning the valve clockwise and removing the lid from the tank
  • Drain the water from the tank completely
  • Remove the fill valve by loosening the lock nut, located beneath the tank, that keeps it in place
  • Prepare the new one, including attaching the rubber washer and adjusting the height according to your needs
  • Insert it in position and lock it with the help of the embedded mechanism
  • Attach the refill tube to the overflow pipe and the water supply tube to the tank
  • Test the fill valve and verify it for any potential leaks

An easy-to-follow guideline that will help you get the job done fast and on-point. All you need is a bit of patience and an equal amount of know-how and you are good to go.


How to Clean the Toilet Fill Valve

How to clean toilet fill valve

You probably didn’t think it is that important to keep your toilet valve clean and in peak condition, right? Just as with everybody else, this is one aspect you have most likely ignored. Until now.

In reality, maintaining your toilet fill valve in top shape is essential if you want to expand its lifetime. It doesn’t matter whether you own a state of the art piece, if you ignore cleaning it from time to time.

And you can do that in several easy steps:

  • Shut off the water and empty the tank completely
  • Open the tank and verify the valve (use vinegar to eliminate calcium and mineral build-up or simply cleanse with abundant water if that’s not necessary)
  • Clean the valve washer and eliminate any debris that may be inside
  • Put everything back together and refill the tank

It is ideal to resort to this procedure regularly, no matter how good or new your toilet valve is. Even some of the more modern and advanced toilet valve models can sometimes accumulate debris and mineral deposits that will impend their functioning.

Even once or twice a year is often enough to keep your valves in mint condition and maintain your toilet’s functionality for longer.


Final Verdict

The best toilet fill valve is not just a beautiful-sounding mythical item. It can be found as long as you know what you are looking for. You need to pay attention to details like: manufacturer, material composition, features, innovation and quality.

With these in mind, finding the one that suits your needs is just a matter of time. Is it worth it to spend time searching for the right piece? It sure does, because the result will translate by increased comfort and money saving.

What I have provided you with here is the biggest, most revealing items in the field, that will cover all your needs with minimum of effort. Give them a try and you won’t regret it.

Christopher has been working on the 'Home Renovation' niche for the last decade. He always admires the minimalist design and architectural efficiency.
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