Quietest Toilet Fill Valves

In this blog,  I will share some of the quietest toilet fill valves available among others in the market. Being a professional I always look out for products that are very effective and budget-friendly as well. For this purpose, I have managed a team of professionals to give comprehensive reviews about the products I enlist here so that my readers don’t get confused while choosing the best value products for their hard-earned money.

So, if you are looking for the quietest toilet fill valve then we are here to provide you with the relevant information in this blog, so let’s get started!

Quietest Toilet Fill Valve

The toilet fill valve, for example, is something that many homeowners overlook.

The toilet tank’s filling valve is utilized to allow the tank to fill to the proper level.

It accomplishes this by allowing water to flow into the tank after a flush, measuring the level, and shutting off the flow after the water reaches a predetermined level.

Toilet fill valves come in a variety of styles and designs. This makes deciding on one difficult.

The appropriate valve is crucial because the wrong one can cost you a lot more in terms of replacement expenses and water bills, as well as your sanity if it’s a noisy one.

Before purchasing a toilet fill valve, there are a few things you should know.

We’ve included our top 5 selections for the best quiet toilet fill valves to make your choice easier. Make sure to have a look at them.

  • Fluidmaster Toilet Fill Valve
  • Kohler GP1138930 Universal Fill Valve Kit
  • American Standard Universal Fill Valve
  • Korky 528 QuietFill Universal Toilet Fill Valve
  • TOTO TSU99 A.X Universal Fill Valve

Fluidmaster Toilet Fill Valve

  • Comes with a flapper repair kit
  • Leak-preventing design
  • For tanks >3.5 gallons per flush

If you’re seeking a solution to your house’s noisy and running toilet, this Fluidmaster Toilet Fill Valve kit could be the answer.

The kit includes Fluidmaster’s renowned 400A toilet fill valve, which is widely regarded as one of the most popular valves in the world. The anti-siphon design of the valve prevents any water leaks from the tank.

A strong frame flapper is also included in the package. You can use this to align the tank.

Every time, the flapper aids in achieving a consistent and strong flush. It’s also quite dependable and constructed of corrosion-resistant materials.

The valve can be used in tanks with a capacity of 3.5 gallons per flush or more. The kit’s robust frame construction makes it more durable, and you won’t have to replace the valve as frequently.

This kit has the added benefit of being simple to install and use.

The valve can be installed and ready to use in under 10 minutes. It also comes with a 7-year warranty, which is unquestionably a plus.

Product Needed
Fluidmaster Toilet Fill Valve

Kohler GP1138930 Universal Fill Valve Kit

  • Silent Fill technology
  • Multiple fill rates to conserve water
  • Adjustable and adaptable

Many people prefer the Kohler Valve Kit because it is an adjustable valve that can be used with a variety of toilets.

Kohler is a long-trusted brand, and its valves are known for their durability and effective operation, just like the Fluidmaster valve above.

The fluid flow, like the valve, is adjustable. This improves the system’s efficiency in terms of water conservation and, as a result, lowers energy bills.

The length of the valve can be modified to roughly 13 inches to satisfy standard cleaning requirements.

The Kohler valve is more durable than its competitors because it is mostly comprised of high-duty polymers.

This valve’s refill rate is pretty outstanding. The tank can be filled in 40 seconds with substantially less noise.

When compared to other valves, this rate is quite high, resulting in a substantially reduced wait time.

There is no instruction manual included with the package. However, figuring out what goes where takes only a few minutes, and you’ll have the valve fitted in no time.

Product Needed
Kohler GP1138930 Universal Fill Valve Kit

American Standard Universal Fill Valve

  • Fast refill rate
  • Includes coupling nuts, a lock, a refill tube, and a washer
  • Handle volumes of up to 7 gallons

Although this American Standard Universal Fill Valve kit is more expensive than the others on the list, it is well worth the money due to its efficiency.

A few toilet tank accessories are included in the set.

A Fluidmaster 400A fill valve, coupling nuts, a lock, a refill tube, and a washer are all included in the set.

The valve has an anti-siphon mechanism that helps to avoid contamination as well as leakage. To meet the specs of your toilet, the height can be changed to 14 inches.

This valve, unlike ordinary toilet fill valves, allows for a silent and quick refill. The refill rate is roughly two times that of comparable models, resulting in a short wait period.

The fact that the valve is universal is extremely appealing to us. It is designed to fit most American Standard toilets, and because all of the accessories are adjustable, you can get it to properly fit your toilet tank.

Given that it can manage amounts of up to 7 gallons, it is unquestionably the greatest valve available.

Installation instructions are also included in the box, which should enable you to set up the valve in a matter of minutes.

Product Needed
American Standard Universal Fill Valve

Korky 528 QuietFill Universal Toilet Fill Valve

  • Fast refill and silent
  • Adjusts from 7.75” to 13.5”
  • Made in America

Korky 528T is one of the greatest fill valves available, thanks to updated and more efficient technology.

The valve is designed to address three typical issues with toilet fill valves: slow filling, noise, and water leakage. It can quickly refill the tank while being extremely quiet.

One of the finest aspects of this valve is how straightforward it is to install.

The twist-lock mechanism used by the valve eliminates the need for tools during installation.

The valve’s ability to manage massive amounts of water is also amazing. This function allows you to replace the valve while the tank is still in good condition.

Because it is simply adjusted, the Korky 528T has a universal design and may be used on a wide range of toilets.

A strainer is included with the valve, which captures any sediments in the water. This increases the valve’s durability.

Product Needed
Korky 528 QuietFill Universal Toilet Fill Valve

TOTO TSU99 A.X Universal Fill Valve

  • Ecofriendly and self-cleaning
  • Adjustable flow rate and height
  • Best for TOTO toilet tanks

While the performance of this valve kit is excellent, it is primarily regarded as a selfish design. This is because it was created specifically for TOTO flush tank models and will not operate with other brands.

If your toilet tank is suitable, however, this valve is a great tool to have.

It has amazing features like EcoPower and Hydrotect that make it environmentally friendly.

The EcoPower feature provides improved hygiene and a hands-free experience, whereas the Hydrotect feature provides self-cleaning and thus excellent antimicrobial protection.

Because of the adjustable features, it can be used on one-piece tanks as well as two-piece toilets.

When installed on a two-piece toilet, the valve allows you to modify the height as well as the flow rate.

The valve makes use of the power created by moving water to save electricity.

The valve aerates the water flow for efficiency, and it also has a built-in sensor that stops the water from running once the tank is full.

The valve is available in three distinct forms, allowing you to select the one that best meets your needs.

Traditional, transitional, and contemporary are the three styles available. To make installation easier, the kit includes a handbook.

Product Needed
TOTO TSU99 A.X Universal Fill Valve

What to consider while buying a quiet toilet fill valve?

There are several factors to consider when purchasing a toilet fill valve. Here are a few things to consider when buying a valve.

  • Measure the diameter of the hole in the tank where the valve will be installed. This diameter should be between 16 and 50 millimeters.
  • Using a tape measure, determine the tank’s depth.
  • Although the outflow hole’s standard diameter is 60 mm, it’s a good idea to measure it as well.
  • Determine whether the valve is underneath or on the side of the tank.

How can you find the best toilet fill valve now that you know what you need to do before buying one?

The sizes and prices of the valves on offer vary. Here are some of the things to look for before deciding on a certain valve.


Toilet valves have become significantly quieter in recent years. Make sure to examine the decibel levels when buying a toilet fill valve.

A noisy valve can be annoying, particularly if the toilet is next to the living room.


Because toilet valves come in a variety of sizes, you’ll likely purchase one that isn’t compatible with your toilet’s system.

As a result, it’s critical to obtain measurements of the valve hole ahead of time.

Rate of Refill

If the toilet valve’s refill rate is high, you’ll just have to wait a brief time for the tank to fill up.

Seal That Doesn’t Leak

Consider purchasing a toilet fill valve to reduce the quantity of water you consume.

Ascertain that the valve’s seal is leak-proof. Other water-saving features, such as a leak detection system and adjustable water volume, can be added.


Fill valves for toilets come in a variety of sizes and styles. When you’re looking for a car, this makes it difficult to choose one.

Even though all of the fill valves on our list are very effective, the Kohler Universal Fill Valve Kit stood out to us. This is because it is adjustable and is known to fit in the majority of toilets, regardless of type.

It also has some outstanding water-saving features, as well as excellent longevity. We especially appreciate how affordable it is in comparison to its efficiency and good performance.

If you’re looking for a new toilet fill valve, we recommend starting with the ones on this list.

You will not be disappointed if you find something that works for you.

Frequently Asked Questions (FAQs)

What are the quietest toilet fill valves?

I have given a detailed analysis and reviews of some of the quietest toilet fill valves in the blog, above. I have enlisted the best products available in the market here is the list of the quietest toilet fill valves I have picked:

  • Fluidmaster Toilet Fill Valve
  • Kohler GP1138930 Universal Fill Valve Kit
  • American Standard Universal Fill Valve
  • Korky 528 QuietFill Universal Toilet Fill Valve
  • TOTO TSU99 A.X Universal Fill Valve

How do I make my toilet fill quieter?

You can modify the pressure of the water entering the tank by opening or closing the shut-off valve a little at a time while listening to the noise water spray makes in the tank while re-filling by removing the tank lid, then flushing probably a few times.

Why is my toilet fill valve so loud?

When a toilet makes an air noise, a whistling or hissing sound, it means the fill valve isn’t shutting and sealing properly, allowing air or water to flow out. Replace the fill valve first if it isn’t shutting properly. If this does not address your problem, contact a plumber.

Why can I hear my Neighbours toilet flushing?

As your pipes vibrate when the toilet flushes, it’s usually a sign that there’s a problem with the fill valve. The part of your toilet that refills the water tank is this section. It may also sound like a foghorn or moaning noise that lasts around 30 seconds after flushing.

Why is the toilet loud after flushing?

If your toilet hums or bangs when you flush it, you could be dealing with a variety of issues. One of the most prevalent causes is that the toilet does not adequately refill. Typically, this is caused by a malfunctioning refill valve, which prevents the toilet from filling up with adequate water.

Why does my toilet sound like a jet engine?

The toilet flush releases pressure when there is high pressure from your pressure tank or water heater, resulting in a banging sound. Reduce the water pressure in the pipes to solve the problem and eliminate the annoying sound. A pressure reduction valve is usually located near the main water supply line.