Top 8 Best Toilet Fill Valves in 2022: Reviewed

If you are looking for the best toilet fill valves, this article will help you find the one that suits your needs.

You may need a toilet valve for many reasons; running toilet, slow refill, leaks, etc. Whatever be the reason here is a list of the best toilet fill valves that can solve these issues. Go through the detailed review to know which set of features matches your requirements.

8 Best Toilet Fill Valves in the market

1. Fluidmaster 400ARHR

fluidmaster 400ah

The first on the list of the best toilet fill valves is Fluidmaster 400ARHR PerforMAX Toilet Fill Valve. Fluidmaster is the world’s leading toilet repair brand. It is the leading product in the toilet industry for great performance. The PerforMAX fill valve is specifically designed to replace obsolete and leaky fill valves. It is the most powerful toilet fill valve on the market.

Being powerful doesn’t mean that Fluidmaster is noisy. In fact, this fill valve design eliminates noise while producing 2X the refill rates of typical fill valve designs. So you can get rid of slow filling with this valve. In addition to that, Fluidmaster 400ARHR is quick and easy to install. You get step-by-step installation instructions with the product.

Fluimaster comes with a height-adjustable valve shank design that fits most toilet models. It works well with 1.28 HET and 1.6 GPF toilets, including dual flush, and it can also be used with pre-1994 3.5 GPF toilets. The water-saving roller clamp helps you save water and money by optimizing the water usage of your toilet. This replacement toilet fill valve is made to last and comes with a 7-year warranty.


  • Eliminates noise while refilling
  • Fast refilling
  • Easy to install
  • Pre-installed shank washer
  • 7-Year Limited Warranty

2. Fluidmaster 400CR

fluidmaster 400cr

You can say goodbye to running toilets with this toilet fill valve. The Fluidmaster 400CR toilet kit contains both the Fluidmaster 400A toilet fill valve and the Fluidmaster 501 2-inch flapper. The universal design fits most 2-inch flush valve toilets and works best with 1.6 to 3.5 gallons per flush toilet or bigger to help solve most typical toilet fill problems, making it ideal for a DIY upgrade. The included 400A toilet fill valve anti-siphon design easily adjusts from 9 to 14 inches, while the 501 2-inch flapper boasts a sturdy frame construction and corrosion-resistant materials to help prevent leaks.

With a Fluidmaster Fill Valve and Flapper Kit, you can solve the two most prevalent reasons for a running toilet. The flapper consistently aligns with the tank drain for a powerful, consistent flush. The entire system may be installed in ten minutes or less and will restore your toilet’s flushing ability. This item replaces a leaking flapper and a damaged fill valve.

With a single kit, you can quickly repair fractured fill valves and leaky flappers. Fluidmaster has been in the toilet industry since 1957 and is a reputed name. You can trust Fluidmaster 400CR toilet kit to deliver. It is a long-lasting product thanks to corrosion-resistant materials and an integrated Microban. And on top of it, it is covered by a 5-year warranty.


  • Universal design
  • Easy to install
  • Long-lasting
  • A warranty period of 5 years


  • Water usage can not be adjusted

3. Kohler Genuine Part Gp1083167

Kohler Genuine Part Gp1083167

If you are looking for noiseless performance and increased product longevity, then Kohler Genuine Part Gp1083167 is the best toilet fill valve for you. You can easily replace your outdated or leaking fill valve with this. It is compatible with a variety of Kohler toilets.

Kohler Genuine Part Gp1083167 fills the tank silently and can be easily adjusted to fit any height. It comes included multiple fill rates to improve performance and save water. Kohler backs it with a one-year warranty which is low compared to other products in the same category.


  • Quiet and fast refill
  • Five fill rate adjustment inserts
  • Long-lasting
  • Good for DIY


  • One-year warranty only

4. Danco HC660

danco hc660

Danco is one of the major plumbing repair, replacement, and renovation suppliers in the home improvement market. It focuses primarily on empowering ‘Do-It-Yourself’ consumers with plumbing solutions that are both practical and economical. They offer beautiful, design-oriented, creative home solutions that are user-friendly in order to help and inspire clients to handle home remodeling projects on their own – without the high cost of professional services.

This toilet fill valve by Dance will give your home a more fresh appeal and revived beauty. Danco HC660 is a water-saving toilet fill valve with an integrated mini-valve that controls tank refill water level.

The HC660 HydroClean Toilet Fill Valve Kit addresses the two most common causes of toilet water loss: miscalibration and leakage. It readily calibrates to the precise amount of water required in the tank, refills rapidly, and jets clean the tank. With each flush, the jets clean the tank and its components. The leak detection and signaling feature is a unique feature. When a leak is discovered, an audible alert is issued.

The HC660 is simple to install and requires no tools. It is designed to suit most regular toilets and has a height adjustment range of 11 to 13.8 inches.


  • Audible alert for leaks
  • Hygienic
  • Tools-free installation


  • Noisy

5. Toto TSU99A.X

Toto TSU99A.X is compatible with all current TOTO toilet models. The TOTO Adjustable Replacement Fill Valve restores your tank’s performance to its original state. The height and refill volume can be adjusted based on your toilet tank settings. The intake connection on the fill valve is standard 7/8 inch and the installation process is very simple.

The warranty on this product is only 1 year. It is very low when compared to other products on the list. But rest assured Toto TSU99A.X is a durable toilet fill valve.


  • Trust of the Toto brand
  • Compatible with Toto toilet models
  • Quick refill


  • Backed by only a 1-year warranty
  • Pricey

6. Korky 528 Toilet Fill Valve

korky 528 toilet fill valve

The Korky 528 fixes the problem of slow refilling, running, and noisy toilets. It enables a complete overhaul of your toilet in one trip. The Korky 528 has a universal design that will fit all brands and a large range of adjustability that will accommodate most toilets. It has an extended life thanks to the long-lasting materials used in construction. With Korky 528 you will be able to save both water and money.

The installation process is quick and simple. It does not require any professional help. . Simply remove your old fill valve or ballcock, insert your new Korky fill valve, and make any necessary adjustments. It also includes an Easy Adjust 2-inch flush valve that is fully adjustable and does not require the use of a hacksaw. The clever twist-lock adjustment facilitates installation.

The 528 comes with everything you need to get started: Fill Valve, Refill Tube, Metal Refill Tube Clip, Mounting Nut, Cone Washer, Coupling Nut, Tamper Proof Key, and Instructions. Also, it is backed by a 5-year warranty.


  • Fixes running toilets
  • Innovative twist-lock adjustment for easy installation
  • 5 Year Warranty


  • Compared to other products on this list, it may be a little noisy

7. Korky 528PRO

korky 528pro

The Korky 528PRO Toilet Fill Valve is the most durable and universal fill valve on the market. Built with grade material it outperforms brass. This toilet fill valve delivers quiet operation with great pressure tolerance. It is compatible with Kohler, TOTO, American Standard, Gerber, and most other brands.

This product has a wide variety of applications. It easily fits and is simple to install. It performs similarly to brass and is built to last. The patented Chlorazone II rubber formulation outlasts ordinary fill valves by two times.  It is quieter than conventional fill valves. It is entirely adjustable in order to reduce water waste in all toilets. The refill adjuster ensures that the bowl receives the correct amount of water to preserve its original performance.

No tools are required to install or adjust this toilet fill valve. Simply remove your old fill valve or ballcock, replace it with the new Korky fill valve, adjust, and you’re done. The clever twist-lock adjustment facilitates installation. The Korky toilet fill valve is designed to fit more toilets and adjusts to fit both large and compact toilet tanks, as well as Kohler, TOTO, American Standard, and all other manufacturers.


  • Made in the US
  • Noiseless refilling
  • Refill adjuster
  • 7-year warranty


  • Expensive compared to the previous model

8. Fluidmaster 400LS

fluidmaster 400ls

If you are looking for a toilet fill valve that is compatible with toilets manufactured prior to 1994 with flush levels ranging from 7 to 3.5 gallons each flush, Fluidmaster 400LS is what you need. The 400LS Leak Sentry Universal Water Saving Toilet Fill Valve has all of the advantages of the 400A fill valve, plus leak prevention technology and a water-saving roller clamp.

This water-saving design can quickly replace inefficient, obsolete, and leaking toilet fill valves. The 400LS is an anti-siphon design that is code authorized and will not contaminate the freshwater source. It can repair and detects leaks in toilets. The installation process is also very simple.


  • Noiseless refilling
  • Easy to install
  • Leak prevention technology


  • Expensive

Bottom Line

Now you know the best toilet fill valves. I have made sure to mention every product that will deliver a noiseless and quick refill.

I hope the information given about toilet fill valves helps you. Please feel free to share your thoughts in the comment section below.

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