While bathrooms are among the vital features of a house, cleaning and fixing can look to be a chore. A toilet valve replacement assemblies and controls the bathroom’s water level using a detector and flapper. Toilet fill valves frequently attempt to conserve water, eliminate waste, and protect against overflow.

The best toilet fill valve is silent, efficient, inexpensive, and escape-free, saving you money in the long-term. NousDecor has chosen many of the very best toilet fill valves available on the marketplace for you.

Types Of Fill Valves

Ballcock Or Plunger

Ballcocks or plungers are among the old valves’ old types. They consist of a brass frame, base fill discharge tube, a hinged lever assembly, along with a floating ball.

The attached floating ball opens and shuts the plunger’s stem-based on the water level. In case you’ve got a ballcock or plunger design valve replacement on your bathroom, it has to be replaced since it doesn’t meet modern plumbing codes.

Diaphragm Style Valve

Frequently made from plastic or brass, the diaphragm design valve is another old design that may nevertheless be found now. The diaphragm and ballcock valves are usually mistaken for one another, but there are crucial differences between these.

The diaphragm mode is anti-siphon and contains a diaphragm seal that opens or closes once controlling the water stream. Older versions are created from brass, while contemporary versions are made from plastic.

Floatless Ballcock (Cupless Style)

A newer variant of anti-siphon fill valves, floatless ballcock fill valves utilize a diaphragm that senses water pressure rather than a floating cup or ball. Floatless ballcocks operate submerged and are often economical. Originally used for low water flow rate toilets from the nineties, they aren’t always dependable valves for contemporary bathrooms.

Cup Sort Or Container Type

Usually made from plastic, the floating cup kind of valve is controlled with a floating cup connected to the filled toilet rotating with a metallic spring and actuating rod. The water level is controlled by correcting in which the cup is connected to the actuating rod.

This kind of valve is famous since it’s user friendly, install, and maintain, so often it replaces the prior styles discussed previously.

How Does Toilet Flush Valves Work?

Somewhat different from a valve, a toilet flush valve expels the water in your toilet tanks and to the bowl once you flush. Pulling on the toilet flush handle opens the flapper just like a plug, along with the toilet flush valve, releases water to the toilet bowl.

When the water has been expelled, the water fill valve subsequently permits water to pass through the inlet tube and the toilet tanks. The water detector prevents this influx of water after the right level is reached. Using a spare fill valve hand signifies a smooth and fast day replacement rather than having to wait days to get an arrangement or plumber.

toilet tank fill valves

Buying Guide

While an update could provide a straightforward solution, you will find far better variations you may learn there. However, you will need a fantastic criterion to understand which to select. Listed below would be the most important ones:

Substance Abuse

Pick a material that withstands the test of time. Go for exceptional ABS and rubber materials, which provide high resistance to rust. It is crucial, particularly for high-end, little investment bathrooms.

Refill Tube Rate

The more complicated the refill tube rate, the less time you are going to need to wait. Consider added water-saving features to decrease electricity bills. As an example, a leak detection method or flexible water volume.


Select a silent water filling system. The majority of the most recent models function quietly. In the end, you do not need all to know somebody is using the bathroom, do you?


A flush valve can not match all bathrooms. For example, most versions are not compatible with older bathrooms. Make sure to look at the height and dimensions. Adjustable height is going to be a massive benefit.

Leak-Proof Seal

A poor seal produces a feeble flushing pressure. Decide on a flapper or valve using a tight seal. It will decrease water wastage.

toilet fill valves home depot

Top Rated Best Toilet Fill Valves Brand 2022

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1. Fluidmaster 400AH PerforMAX

  • Type: Floating Cup
  • Maximum Height: 15 Inches
  • Minimum Height: 10 Inches
  • Warranty: Yes, 7 Years

In case you’ve got a high-efficiency bathroom, the Fluidmaster PerforMAX is for you. Available at a low price, this fill valve provides a great deal of bang for your dollar. Strong and universal, this fill valve matches any bathroom out there. Even the Fluidmaster PerforMAX’s height is flexible, which makes installation and fitting a breeze.

Whether you’ve got a dual flush, an old version, or even a branded bathroom, there’s nothing that this valve can’t manage. Among the quietest models on the marketplace, your toilet privacy will no more be bothered. The quick and effective refill rate sets out others out there to pity when conserving water.

The seven-year guarantee helps to ensure that you’re covered if the unexpected occurs, which means you could flush away any concerns.

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2. TOTO Tsu99a x Adjustable Replacement Fill

  • Type: Floating Cup
  • Maximum Height: 13.5 Inches
  • Minimum Height: 7.75 Inches
  • Warranty: Yes, 1 Year Limited

In case your Toto toilet tank fill valve requires an update, the TOTO Tsu99a x Adjustable Replacement Fill is a great option. Offered in a double pack for the advantage, this collection includes all you require for a simple and easy installation process. The TSU99A.X is flexible and equipped to match your bathroom tank perfectly.

Having a normal size inlet connection along with a complete list of exactly what this product could replace Toto’s site, it’s tough to beat this blend of convenience and power; it is no surprise this is among the very best bathroom water heaters. Even if you eliminate the manual or guarantee, the two files are available on Amazon for free only in case.

That having been said, this version was created with additional Toto toilets in your mind, so in case you’ve got another branded bathroom, it could be best to buy one of those other versions on our listing.

3. Zurn Z6003-WS1-YB-YC Aquaflush

  • Type: Diaphragm
  • Maximum Height: 9.8 Inches
  • Minimum Height: N/A
  • Warranty: Yes, 3 Year Limited

Beauty is over just what you can see to the outside, and also, the Zurn Aquaflush valve proves it. Having a stylish yet durable polished chrome finish, this fill valve is silent and simple to install. A slightly different fashion than many others with this listing is ideal for replacing old diaphragm versions.

The two chlorine and clog-resistant, and this fill valve includes a double seal diaphragm and operates in a solid 1 gallon per flush. Despite its durability, the Zurn Aquaflush is still among the quietest models on the current market, meaning your toilet may be a calm oasis once more.

The Aquaflush is built with convenience and durability in mind, and also the three-year guarantee has you covered for accidents.

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4. Kohler Genuine Part Gp1138930 Silent Fill

  • Type: Floating Cup
  • Maximum Height: 13 Inches
  • Minimum Height: N/A
  • Warranty: Yes, 1 Year Limited

If customizable fill valves are exactly what you require, Kohler has you covered with all the Kohler Genuine Part Gp1138930 Silent Fill. A superb replacement product for old versions, this quiet fill valve is fast and simple to install. Customization is in the core of the GP1138930 due to the synonymous color-coded fill lids and adjustable height.

There’s no need to shell out money to make your bathroom fit this product; Kohler made this fill valve fully adapt to your unique needs. The one-year guarantee is a superb attribute to protect against unforeseen problems, and Kohler’s excellent customer support is always there to assist if you want it.

This is actually among the very best fill valves that you can select for your house at such a reasonable cost.

Kohler Genuine Part Gp1138930 Silent Fill
Kohler Genuine Part Gp1138930 Silent Fill

5. American Standard 3174.105-0070A

  • Type: Floating Cup
  • Maximum Height: 14 Inches
  • Minimum Height: N/A
  • Warranty: Yes, 1 Year Limited

Offered in a single or double pack for your advantage, American Standard has made a superb universal fill valve to restore your toilet issues eternally. If it comes to quality and installation, this brand lives up to its reputation by providing simple to set up and durable products such as the 3174.105-0070A that last a lifetime.

The worst-case situation is always a chance, which explains why the one-year limited guarantee can ease your concerns. Among the best replacement bathroom valves available on the current market, this valve is specially crafted for the American Standard Champion line two-piece bathrooms and Champion 4 flush methods; please keep this in mind before buy.

Should you have to understand which components can be substituted by this valve, American Standard includes listing those replaceable parts on the internet to assist. Available for an excellent price, click the URL to determine the way the 3174.105-0070A can completely change your flushing encounter.

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6. Korky 818BP

  • Type: Floating Cup
  • Maximum Height: 7.8 Inches
  • Minimum Height: N/A
  • Warranty: Yes, 5 Year Limited

Should you have to replace your valve along with your flapper, Korky is available in a single neat bundle just for you. The quietest bathroom valve within this listing, there’s no need to suffer from phantom flushes or clanking components. Whether you’ve got a one or two-piece bathroom, this fills valve and flapper is made to suit virtually any bathroom.

If bacteria or water are an issue, this fill valve is more resistant to bacteria rust and chlorine. No tools? No problem, since this set could be installed without removing your flush tank or using any instruments in any way. Durable, simple to install, and flexible, it’s no surprise that this collection is indeed popular, with nearly 250 favorable reviews on Amazon.

Korky 818BP
Korky 818BP


  • Type: Floating Cup
  • Maximum Height: 13.8 Inches
  • Minimum Height: 11 Inches
  • Warranty: Yes, 1 Year Limited

Cleaning your flush tank is a hassle. However, the NEXT BY DANCO Hydroclean fill valve toilet makes it a cinch. Using its self-cleaning jets, there’s not any need to fret about these normal tank cleaning sessions. Does this valve self-clean, but also, it finds leaks and allows out sound to notify you of this breach.

If a leak or violation happens, the one-year limited guarantee and effortless removal process have your spine. Repairs are a cinch thanks to the automatic water shut off feature, so there’s no need to fuss around the shut-off valve. The Smart Nut will help produce a smooth installation experience without using tools or additional gear.

By installing this Hydroclean toilet tank fill valve, you can also save water and money due to its built-in miniature valve using its automated water level alteration features.

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8. Plumbcraft Adjustable

  • Type: Floating Cup
  • Maximum Height: 13 Inches
  • Minimum Height: 8 Inches
  • Warranty: Yes, 1 Year Limited

If constant flowing water continues to be a problem for you in the past, Plumbcraft’s Flexible Shut Off Load Valve can help. This valve opens the water off when it runs by itself, saving you headaches and money later on.

The Water Heater Adjustment Caps is a fantastic way to tailor this exceptionally customizable bathroom valve to your requirements. The elevation on this particular fill valve may be adjusted to any height between 8 and 13 inches, making it able to match just about any bathroom.

Installing this valve won’t compromise on your flush level, even since it makes flushing a solid yet quiet encounter. Whether you have to replace an old version or a more recent flap, then this product is a superb alternative for your house.

Plumbcraft was a tried and tested brand for more than 50 decades, and this toilet fills valve proves its mettle.

korky toilet fill valves

Frequently Asked Questions

How can I fix a leaky valve kit?

Malfunctioning valves are simple enough to fix. If the valve guide or new site includes a repair manual, it’s ideal for adhering to that. Otherwise, follow our guide above for advice. If you’re not certain of what to do, it’s almost always best to speak to a professional for information before beginning.

How long can a toilet fill valve survive?

With proper care and maintenance, a fill valve may last for approximately four or five decades. Using harsh chemical bowel cleansers will damage the valve and reduce its lifespan in half or even longer.

How much time does this require a plumber to put in a toilet fill valve?

The time it takes to get a plumber to put in a fill valve varies based on their expertise, your place, and the condition of your bathroom and authentic valve. But it shouldn’t require more than two hours when everything goes smoothly.

Can a toilet fill valve be mended?

A toilet fill valve may be mended, and you don’t always have to call a professional to take action. Based on the problem, you can correct the problem yourself in a day. But if you’re uncertain of what to do, then you can call a plumber to get a consultation.

How do I clean a toilet flush valve?

To clean a toilet flush valve, then switch off the water source, maintain the flush handle until the majority of the water is eliminated, mop up the extra liquid with a cloth and wash down the valve using a sterile sponge and mild soap. If it is possible, place a sealing ring onto the drain chair and set back everything. Don’t use harsh chemicals or abrasives while cleansing the valve.

Read more: https://www.plumbingsupply.com/how-to-install-canister-style-flush-valves.html


Just as we would like to state that our choice comprises the sole best toilet fill valves to buy for a home on the market, it is not. But what makes the products above that the best is their continued achievement and premium quality toilet. The particular manufacturers spare zero cost at making them among the best in the industry.

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