Skip to content

Quietest Toilet Fill Valve 2024 (Best Most Quiet or Silent Flush Toilet Valve)

Quietest Toilet Fill Valve

Those who share their apartment with others are undoubtedly annoyed by the announcement the toilet makes when they flush. It also gets very annoying when filling takes a long time and is also noisy. The good news is that it doesn’t have to be this way as there are different toilet fill valves you can choose from that are silent.

Are you constantly irritated by the noisy toilet valve you have? Here are the best, most quiet flush toilet valves that you can use. Fluidmaster 400CRP14 Toilet Fill Valve is top in the market and has a universal design. The TOTO TSU99A.X Adjustable Replacement Fill Valve is another top product that is quiet and comes with kits as well.

Quietest Toilet Fill Valve: Quick Comparison

TOP PICK Fluidmaster 400CRP14 Toilet Fill Valve
  • Resistant to corrosion
  • Easy to install
  • Fixes toilet fill problems
  • Universal design
  • For toilets of 1.6 to 3.5 gallons
Check Price
RUNNER UP TOTO TSU99A.X Adjustable Replacement Fill Valve
  • Easy to install
  • Silent operation
  • Quick refill
  • Kits included
  • Perfect fit for all TOTO tanks
Check Price
Fluidmaster 400AH PerforMAX Toilet Fill Valve
  • Faster refill rate
  • Easy to install
  • Adjustable and universal
  • Eliminates noise during refill
  • Great value
Check Price
Korky 528MP Quietfill Platinum Fill Valve
  • For both two-piece and one-piece toilets
  • Easy installation
  • Includes accessories and kits
  • Quiet toilet fill valve
  • Comes with installation instruction
Check Price
American Standard 7381125 Fluid Master
  • Has a water control assembly
  • Includes installation kits
  • Easy to install
  • Quiet fill valve
  • Durable
Check Price

Best Quiet Toilet Fill Valve 2024: Reviews

1. Fluidmaster 400CRP14 Toilet Fill Valve – Top Pick

Our top pick is this Fluidmaster 400CRP14 that comes with a flapper repair kit. So you can say it’s somewhat of a self-sufficient toilet fill valve. It’s designed specifically for toilets of 3.5 gallons’ flush capacity or more. This makes it an ideal choice for you if you have a large toilet capacity.

Even though it has an adjustable height that makes it easily compatible with most models, the 2” flapper puts a limit to this. You don’t have to worry about corrosion or the type of water you have as the valve is both resistant to corrosion and fit for use with hard and chlorinated water.

In terms of use and installation, it’s easy to install and has an installation manual that guides you. There are also videos online to guide you.


  • Good for use with large tank toilets
  • Compatible with most toilet models
  • Resistant to corrosion
  • Can be used with both hard and chlorinated water
  • Comes with a flapper repair kit
  • Works with a quiet flush technology


  • Installation isn’t straightforward and requires extra tools

Check current prize

2. TOTO TSU99A.X Adjustable Replacement Fill Valve – Quietest Toilet Fill Valve

This TOTO Fill Valve has great performance but is too restrictive. The reason is because of the design that only allows use with TOTO flush tanks. If your tank is a good match with this fill valve, then you have solved your problem of a noisy fill valve.

The EcoPower feature and Hydrotect features are added to make this product eco-friendly. With the EcoPower feature, you get a hands-off experience for better hygiene, and the Hydrotect feature allows self-cleaning for even better protection against microbes.

Even though its design is for two-piece toilets, it can also be used on one-piece tanks as well by making adjustments. On a two-piece toilet, you get the option of adjusting both height and flow rate. You don’t need to worry about electricity bills as the valve is self-sufficient and uses electricity generated from the flowing water. There is an in-built sensor that prevents water flow once the tank is full.


  • Quiet operation
  • Easy installation
  • Adjustable height
  • Eco Friendly


  • Hardly compatible with other tank models

Check current prize

3. Fluidmaster 400AH PerforMAX Toilet Fill Valve – Universal Silent Toilet Fill Valve

This quiet toilet fill valve is made to be universal, fitting into any toilet, so you don’t have to worry about compatibility. Whether you are using single or dual toilets, you can use this fill valve and expect high performance. Apart from being quiet, it refills the tank faster as well.

The adjustable shank of 10 to 15” makes installation easy. Note however that you will need several adjustments to get the perfect flush for your toilet. By its design, the outlet pipe in the toilet tank is below the waterline thereby reducing noise drastically during filling.

Apart from a quiet operation, the installation is equally an easy process and the valve flow rate can be adjusted too.


  • Easy installation
  • Quick tank refill
  • Silent toilet fill valve
  • Perfect fit for most toilet models
  • Compatible with both dual and single toilets


  • Flow rate adjustment affects fill rate

Check current prize

4. Korky 528MP Quietfill Platinum Fill Valve – Best Small Tank Valve

This is another universal toilet fill valve that fits into almost any toilet model for your convenience. So you can worry less about compatibility with this product. If your toilet flushes 1.6 gallons or less, this is ideal for you.

Being a quiet flush valve, you can make use of the toilet without causing so much disturbance to those around you. The silence is thanks to the ballcock being housed in the flushing mechanism and the flushing systems being housed as well. Just as with other valves here, this is also easy to install and requires no special tools to install.

Its adjustability is what allows it to be compatible with almost any toilet as you can adjust the valve size from 7.75” to 13.5”. Wrong valve adjustment can lead to high noise levels and a slow fill rate, so be sure to adjust your valve properly for the best experience.


  • Universal toilet fill valve
  • Quiet flush
  • Easy installation
  • Adjustable valve
  • Installation instructions available


  • Requires adjustments with tools during installation since it’s adjustable

Check current prize

5. American Standard 7381125 Fluid Master – High- End

Even though it’s on the high side, the American Standard 7381125 Fluid Master gives you great efficiency that is worth even more than its price. Each purchase comes with the complete kit and accessories that you need for your toilet tank. So this purchase takes care of the need to buy any extra tools or accessories.

The anti-siphon feature of the valve helps prevent contamination and reduces the probability of toilet water leaks. It is also a good fit for many toilet models thanks to its adjustability. The valve gives a fast refill but does so quietly. For your convenience, the valve is easy to install and comes with instructions to guide you.


  • Easy to install
  • Durable
  • Cones with instructions
  • Kits and accessories included
  • Fast and silent refill


  • Replacement parts are not so easy to find

Check current prize

Silent Flush Toilet Valve FAQ

Why Is My Toilet Fill Valve So Loud?

Your toilet valve can get loud when refilling mostly because the refill valve has restricted water flow. If this is the case, you can fix the problem by completely opening the shutoff valve. Other reasons are the presence of debris, deteriorated rubber seal, and hardening of the diaphragm gasket inside the seal valve.

How Does Quiet Fill Valve Work?

The toilet fill valve controls the toilet flush. When you press down the flush button, the toilet flush valve is opened. When the tank empties the toilet fill valve takes over to refill the tank as it’s connected to the water mains line. The tank stops filling once the water reaches the preset fill line as it is determined using a float.

How Do I Muffle My Toilet Sound?

If you have a noisy toilet, you can muffle the toilet sound by using a weatherstrip. While this is cheap, it’s also effective. A more effective way would be to use a soundproof blanket. If the sound is coming from the opening at the bottom of your door, use a door sweep to seal the opening.

You can also soundproof the toilet walls using drywalls.

Why is There a Flush Toilet Valve?

The flush toilet valve is responsible for controlling the filling of the toilet water tank. It opens the water flow to refill the tank and shuts off the water supply once the water reaches the preset fill level.

Final Thoughts About the Top Quiet Flush Valve

You don’t have to worry about the embarrassing loud noise that comes with your toilet filling anymore. With the quietest toilet fill valves in 2024, you can improve your toilet performance and increase your comfort. Fluidmaster 400CRP14 Toilet Fill Valve is efficient and also resistant to corrosion, so durability isn’t an issue for you. TOTO TSU99A.X Adjustable Replacement Fill Valve is another top choice that performs silently and improves refill rate.