Top 10 Best Toilet Fill Valve

Your toilet must have a fill valve in order to function properly if your car has an engine. If your toilet tank doesn’t fill up, it can cause serious problems. To avoid unpleasant situations, make sure you get the best toilet fill valve.

It is small but crucial for the operation of a toilet tank. Leakage or an overflowing cistern means it’s time to replace the fill valve. There are many fill valves on the market. It is important to choose the right one.

Continue reading to learn more about the different types of toilet fill valves, and then choose the right product from the extensive list.

Top 10 Best Toilet Fill Valve Models

Here are my toilet fill valve test results. So that you can choose the right model for your needs, I have handpicked 10 models. Some models allow for height adjustment while others can withstand certain conditions like hard water or high pressure. Pay attention to what you choose.

Fluidmaster 400AKRP10 Universal All-in-one Toilet Fill Valve – Best toilet tank fill valve to buy

Fluidmaster 400AKR Universal All in One Toilet Repair Kit for 2-Inch Flush Valves, Easy Install
  • RESTORES OVERALL TOILET PERFORMANCE: All in one toilet repair kit replaces inefficient fill and flush valves, leaky flappers, and broken toilet handles to make your toilet run like new
  • UNIVERSAL DESIGN: 400A toilet fill valve adjusts easily from 9 – 14 inches, fits most 2-inch flush valve toilets, and is ideal for use in 1.6 to 3.5 gallons per flush toilets or larger
  • HIGH PERFORMANCE FLAPPER: PerforMAX high performance 2-inch adjustable water-saving toilet flapper maximizes water usage with each flush
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again
  • 5-YEAR WARRANTY: This product has a 5-year warranty

Fluidmaster has been the #1 toilet repair brand in the world. They have been helping customers find the best toilet repair solutions since 1957. Fluidmaster 400AKRP10 Universal All in One Toilet Fill Valve is one of the most popular toilet valves. It has everything you need to make your toilet work like new. It ranks #1 on Amazon’s Best Seller Rank.

The proven 400AKR model ensures quiet, proper filling. This fill valve also features PerforMAX 2’s water-saving technology that adjusts water consumption for each flush.

This item will fit most 2″ flush valves and is the perfect combination to use with 1.6GPF-3.5 GPF toilets. The kit includes a replacement toilet flush valve, handle, and gasket. All replacement parts have a strong construction with corrosion-resistant materials. A 5-year official warranty is included

Fluidmaster 400AKRP10 400AKR Universal All in One Toilet Repair Kit
  • Best value for money.
  • Easy to install.
  • High-quality materials.
  • PerforMAX water-saving optimizes your water use.
  • Contains everything to restore and enhance your toilet’s performance.
  • Anti-Siphon operation, code approved.
  • 5-year warranty.
  • Requires Cleaning; otherwise, it can get clogged.

Kohler Genuine Part Gp1083167 Silent Fill Valve

Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5" x 3.5" x 3"
  • Kohler genuine part. Valve Type: Manual
  • Silent fill provides a gracious experience by filling the tank quietly
  • Multiple fill rate inserts are provided to optimize performance and conserve water
  • Adjustable to accommodate any height. Never use an abrasive material such as a brush or scouring pad to clean surfaces
  • Confirm shank color to determine correct part; If black, use this part and if grey, use GP1138930

KOHLER has another fantastic product. This valve is a great choice for those who want a silent performer. The tank will be filled and you won’t hear anything.

There are many filling options. Separate inserts allow you to choose the best water for your tank. This will help you save water as well as your money.

We also liked the ease and speed of this valve. This product also offers endless adjustment options. The kit can be adjusted to any height you require. It is compatible with most two-piece tanks.

The product is made of durable plastics. It weighs 9.6 ounces. It was made in the USA according to all tank fill-valve standards.

Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets
  • Reasonable price
  • Sturdy & durable construction.
  • Adjustable height.
  • Adjustable fill valve.
  • Water-saving.
  • KOHLER genuine parts.
  • Ease of installation.
  • Poor Instructions.

Fluidmaster 400CR – Great Toilet Tank Fill Valve Repair Kit

Fluidmaster 400CRP14 Fill Valve and 2-inch Flapper Repair Kit (Pack of 1)
  • FIXES NOISY, RUNNING TOILETS: Toilet repair kit replaces inefficient fill and flush valves, and leaky flappers to help solve most common toilet fill problems
  • UNIVERSAL DESIGN: 400A toilet fill valve adjusts easily from 9 – 14 inches, fits most 2-inch flush valve toilets, and is ideal for use in 1.6 to 3.5 gallons per flush toilets or larger. Dual Flush: No
  • CORROSION RESISTANT: Solid frame 501 2-inch flapper features corrosion-resistant Microban material to prevent breakdown and leaks due to bacteria and is chlorine and hard water resistant
  • EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again

This Fluidmaster’s fill-valve is an excellent alternative to the one I have previously recommended. However, it can only be used if the flapper needs to be replaced and the toilet requires a flush valve of 2 inches. It can be fitted into tanks up to 9” tall and will operate smoothly for at least 5 years of the warranty.

It also has adjustable height adjustment shafts. Fluidmaster 400CR is recommended to plumbers who need to have the highest universal height part in their vehicle to be able to apply it quickly if necessary.

This part was installed in my son’s bedroom 7 years ago.

 Fluidmaster 400CR Universal Toilet Fill Flapper Repair Kit for 2-Inch Flush Valves
  • Simple design for easy installation
  • Highly adjustable
  • Comes with a 5-year warranty
  • Affordable
  • Comes with a repair kit
  • Does not comply with the Proposition 65 warning (refers to California)

Next by Danco HC660 – Excellent Water-Saving Fill Valve

Danco HC660 Toilet Fill Valve Repair Kit, Pack of 1, Blue White
  • WATER-SAVING toilet fill valve with built-in mini-valve that adjusts tank refill water level
  • DETECTS LEAKS: The water-saving toilet fill valve sounds an audible alert when a leak is detected making you aware of any potential issues that must be addressed
  • CLEANING JETS: Strong jets stir up debris in toilet tank in order rush any dirt down the drain with every flush keeping your toilet tank cleaner
  • EASY ADJUSTMENTS: Shuts off water inside tank making repairs a snap, refills quickly, and has an adjustable height of 11 inches to 13.8 inches
  • EASY INSTALLATION: Smart Nut helps with easy installation without tools in most standard toiletes

This extraordinary product has everything a good toilet tank valve should have to satisfy our strict review value grid, plus some unique features. Namely, this valve cleans your tank! How? There are built-in cleaning jets that strongly stir up the toilet tank debris. In this way, all accumulated dirt is regularly removed and flushed down your toilet. The tank stays clean.

It also detects the leaks and calibrates them for extra efficiency. You will spend less water and pay less for the bills. How does this valve detect the leaks? It has a built-in system that activates the sound alarm to inform you of the leak. This high-tech feature is unique and rarely seen on the market.

In addition, this water-saving model has a special, additional mini-valve. It is responsible for water level adjustments.

When it comes to the standard features, this product has them all. It is highly adjustable. You can adjust the height from 11 to 13.8 inches. Also, it is very easy to install. You don’t need special tools. It comes with a smart nut that makes the installation process a piece of cake.

 Danco HC660 Toilet Fill Valve Repair Kit
  • Quick refill
  • Automatic tank cleaning
  • Tool-free installation
  • Full flush efficiency
  • It may get a little noisy.

American Standard Fluid Fill Valve

American Standard 7381125-400.0070A Fluid Master 400A Universal Toilet Water Fill Valve, 10.00 Inch Wide x 3.00 Inch Tall x 3 Inch Deep, Black
  • American Standard universal fill valve that will hold up in high-use areas, making it perfect for most applications
  • Universal Fluid master 400A replacement fill valve includes valve, shank washer, lock, coupling nuts, coupling washer, refill tube and refill tube clip
  • Reliable performance
  • Easy to install
  • Check your model toilet for compatibility

This well-crafted fill valve by American Standard is made of hard plastic that will stand the test of time. The fill valve is relatively lightweight and compact. Owing to its 10-inch height, it will easily fit in small as well as large-sized cisterns. It is designed to refill water in your cistern as quickly as possible without resulting in any leaks. The company bundles with the unit all necessary accessories like the shank washer, refill tube, coupling washer, coupling nuts, refill tube, and refill clips.

 American Standard 7381125-400.0070A Fluid Master 400A Universal Toilet Water Fill Valve
  • Fits most toilets
  • Quick installation
  • High water fill rate
  • Adjustable design
  • It may get clogged if there is high mineral content in the water.


  • Adjustable height for all TOTO toilet tanks
  • Resets your tank back to optimal performance
  • Includes valve, refill tube and clamp, cone washer and nut
  • Standard 7/8 inch inlet connection
  • Easy, DIY installation

Let’s begin at the top of the Olympus- The TOTO TSU99A.X. Although the name may not be very appealing, it is certainly a performer in terms of performance. TOTO is a brand that you will recognize if you have ever had to deal with toilet flush valve filling problems.

It’s easy to install the valve, and once it’s in position, you can forget about it. It will ensure that your toilet flushes flawlessly every day.

This valve is the best. It can be adjusted to any height and it is versatile. It can be adjusted in height to fit most toilet tanks manufactured by TOTO (and possibly many other types), but the manufacturer does not guarantee suitability for their products.

Don’t be alarmed if you already have a TOTO toilet tank. This model is the perfect solution to your problem. It will fit all installations because it has a 7/8-inch universal inlet connector.

This water fill kit has a strong advantage in that it increases the tank’s performance. Your tank will fill up quickly. Water will stop flowing as soon as it reaches the right level. There is no leakage or incomplete re-fill. You won’t hear the annoying sound again!

What is included in the box? The package includes the kit’s body, clamp, and a fill tube for the toilet. Also included are the cone washer and nut. This model, like all TOTO products, can be installed very easily. It is easy to install yourself!

TOTO TSU99A.X Adjustable Replacement Fill Valve Assembly for Toilet Tanks
  • DIY installation
  • Flexible height
  • Universal fill valve
  • Standard inlet connection
  • May not refill the tank very quickly

Korky 528PRO – Best Toilet Fill Valve for High Pressure

Korky 528PRO Pro Grade Max Performance Fill Valve, Small,BLACK
  • This product is used in wide range of applications
  • Easily fits and this is easy to install
  • Made in United States
  • Performs as well as brass and is engineered for strength
  • Quiet operation that's designed to withstand high pressure

The model fits almost any modern toilet tank and, as my experience shows, works for over 7 years. By the way, the warranty is equal to that, which is very nice. I recommend this part to both DIYers and professionals.

best toilet fill valve
  • Durable chlorazone gasket;
  • Quiet operation;
  • Made in the US, 7-year warranty;
  • Effortless installation;
  • Great for high-pressure systems.
  • A bit pricey.

Korky 528 – Top Budget Adjustable Fill Valve

Korky 528 Toilet Fill Valve, Universal, Black
  • UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It's easy to install & keeps your toilet running smoothly.
  • EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs. Adjustable from 7.75'' to 13.5.''
  • INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, coupling nut, tamper proof key & instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.

Korky, a dedicated American toilet repair part manufacturer, has many years of industry experience. Their 528 model is an excellent example of their hard work. The part is very similar in design to the Toto, but it costs much less.

This toilet fill valve is simple and has a chloracne gasket at its base. It’s also the most cost-effective if you want the best possible toilet fill valve.

Korky 528 Toilet Fill Valve, Universal
  • Very cheap, but great warranty;
  • Fits most toilets;
  • Durable chlorazone leak protection;
  • American manufacturer.
  • A bit noisy.

Plumbcraft 7030911

Plumb Craft Adjustable Quick Shut Off Perfect Flush Anti Siphon Toilet Fill Valve
  • Adjustable - Adjustable toilet fill valve from 8" to 13". Features a fast powerful flush and quiet water fill
  • Prevents Running - Includes quick action water shut-off that prevents toilets from continuously running
  • Water Saving - Includes Water Flow Adjustment Caps to save money and up to 38% more water with each toilet flush
  • Safe for Drinking - Anti Siphon technology keeps drinking water safe. Replaces Ballcocks with float balls or fill valves
  • Easy Installation - Fits most toilets. Easy Installation. Toilet repair kit also Includes flush valve and refill tube

Plumb Craft’s adjustable model 7030911 is a good choice if you only trust brands that have a long history and are well-known on the market. Plumb Craft has been on the market for more than 50 years. Because of its reliable and consistent product lines, customers trust Plumb Craft.

Independent experts tested this product and found that it saves you around 38% per flush. This amazing result is worth your attention if money and water are important to you.

This is how it works. How is this valve able to save so much water? Plumbcraft engineers invented the caps, which adjust the water flow to make it a high-flow fill valve. The result is that there is no leakage, each flush saves money and you use less water.

This product also features a safety system that shuts off water to prevent it from running continuously. You won’t have to pay more for water or experience any unpleasant effects from running water.

The engineers also replaced the outdated toilet fill valve system with float balls and used anti-siphon technology. Your drinking water is now 100% safe.

This is adjustable? It is adjustable. It can be adjusted to any length from 8 to 13 inches. It is a silent flushing toilet valve. Yes! This valve makes no noise.

Last but not the least, it will fit most toilet models. It’s easy to set up and use. The product also includes a high-quality repair kit and a refill tube.

toilet fill valves
  • Saves up to 38% of water per flush
  • Suits all two-piece tank models
  • Highly adjustable
  • Durable plastic build
  • Not suitable for the dual flush tanks

Hibbent Adjustable Universal Fill Valve

Universal Toilet Fill Valve Kit Easy and Rapid Adjustable Water Line - Toilet Tank Repair Kit for Most Toilets - High Performance Toilet Replacement Part
  • 1. Toilet Tank Fill Valve Replacement, Fix cracked, noisy, slow filling valves with the quietest
  • 2. Adjustable fill valve Universal design fits most toilets brand like kohler, toto, American standard and others
  • 3. Toilet fill valve height adjusts easily between 7.8inch - 13inch
  • 4.Easy-to-install: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs.
  • 5. Maximize toilet performance and save water.

The Hibbent toilet fill valve is not only designed to fix leaky or noisy toilets but also to improve the flow of water in the cistern. The easy-to-adjust valve height between 7.8 inches to 13 inches makes it a universal and well-designed plastic fill valve that fits brands like Kohler, Toto, and American Standard toilets. The water level adjustment is a unique feature allowing the levels to range from 4.7-inch to 10.2-inch.

best toilet fill valves
  • Tool-free installation
  • Universal valve design
  • Prevent wastage of water
  • Inbuilt filter
  • The valve may not shut off immediately.

Topics & Questions Best toilet fill valve

Is Fluidmaster or Korky better?

The Korky gaskets material was very pliant and strong but I feel better than the Fluidmaster. Unlike replacement flush valve gasket sizes, there is also a larger range of sizes. Two inches are probably the most common. A couple of newer bathroom models use three inch valve….

How long should a toilet fill valve last?

Toilet valves usually last about five to seven years and sometimes more if they are not maintained properly. Eventually, a fill valve can clog or leak.

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