11 Best Toilet Flush Valves For A Quiet and Fast Refill In 2022


Going to the toilet should be a seamless experience, and the best toilet flush valves can help you make it one. These valves are positioned within your flush tank and are available in various sizes. Not every size is compatible with your tank, so you need to be careful about what you buy.

The typical rule of thumb here is that the bigger the valve, the better the flow of water. The options we have listed here use much less water than traditional valves, which means you can save gallons, reduce your water bill, and be kind to the environment. Here are the 11 picks that we recommend for your bathroom.

11 Best Toilet Flush Valves

1. Best With Solid Frame Flapper: Fluid master Flush Valves

Fluid master Flush Valves


This is the ideal solution to repair a noisy toilet. You can use Fluid master valves in 3.5 per gallon toilet flush or larger capacity. The kit includes the most commonly used 400A fill valve. It contains a solid frame flapper that aligns with the tank drain and allows consistent power flush. Here’s a video that demonstrates exactly how easy it is to install and use this product every day.


  • Chlorine-resistant flapper
  • Easy to use
  • Highly durable


  • Installation may not be easy

2. Best Durable:  American Standard Flush Valve

American Standard Flush Valve


The American standard replacement flush valve consists of a seven-inch tube and a 3.4-inch chain and is a universal replacement for any Champion 4 flushing system. It is made of plastic and metal material and weighs one pound.


  • Long-lasting
  • Certified frustration-free
  • Easy to use


  • Instructions may not be clear

3. Best Compatible: Kohler Flush Valve

Kohler Flush Valve


This canister flush valve is compatible with the K-4634 model of the Kohler Cimarron tank. It is Kohler’s original replacement part. The canister measures three inches with a three-inch outlet. The flush valve helps maintain Kohler toilets’ actual product performance. The item weighs 1.2 pounds. Watch this video to get a detailed review of the product.


  • Long-lasting
  • Fully assembled
  • One-year warranty


  • Not suitable for one-piece toilets

4. Best for Repairing Leaking Toilets: Next by Danco Flush Valve

Next by Danco Flush Valve


Next by Dancois designed to accommodate standard flush valves from 2.5inches to 10.5 inches high. The pack includes a split handle with a flush activator and not compatible with Mansfield brand toilets. The dual-flush valve converts a standard toilet into a two-button, dual flush toilet. It offers a choice of full or low flush requirements. It is suitable for all standard flush valves and reduces faulty toilet flapper, flapper chain, and toilet handle problems. This video will tell you more about the valve so you can make the right decision.


  • Water-saving
  • Easy-installation
  • Durable construction


  • Does not fit Toto ST454E

5. Best Water-Efficient: Mansfield Flush Valve

Mansfield Flush Valve


The Mansfield flush valve is made of polypropylene and ABS material, which will not rust and corrode. The product weighs 0.4 pounds. You can use the flush valve to repair leaky toilets. This flush valve replaces 208 and 209 models and allows you to stop flushing action midway to prevent potential overflow of water. The lightweight flush valve is easy to install.


  • Energy-saver
  • Instant shut-off
  • One-year warranty


  • May not last very long

6. Best For Flush Accuracy: Sloan Valve Flush Valve

Sloan Valve Flush Valve


Sloan flush valve is an exposed manual water closet flushometer, which uses para-flow technology to ensure low-consumption flush accuracy. The product is made of copper and brass castings with a chrome finish. The flush volume starts with as low as 1.6 gallons of water to improve water efficiency.


  • ADA compliant
  • Adjustable tail-piece
  • Three-year warranty


  • May not last longer

7. Best For Hard Water: Korky Flush Valve

Korky Flush Valve


This is a universal toilet flush valve, compatible with most three-inch flush valves, and is easily adjustable with Toto, Mansfield, and other brands. The flapper adopts a flexible rubber design to achieve a tight seal on most flush valves. It solves problems such as toilet leaks, noise, or water refilling.


  • Long-lasting
  • Chlorine-resistant
  • Works with hard water


  • May not work with American Standard toilet

8. Best For One-piece Closet Toilets: BQLZR Flush Valve

BQLZR Flush Valve


The BQLZR Flush Valve is only compatible with toilet tank holes measuring 2.56to 2.95inches. The valve has dimensions of 10.24x 10.63inches. Its design has a good sealing effect, adjusts the tank’s water, and is suitable for one-piece closet toilets.


  • Water-saver
  • Prevents leakage
  • Durable construction


  • May be difficult to install

9. Best Easy-To-Install: WDI Technology Flush Valve

WDI Technology Flush Valve


WDI Technology replacement toilet flush valve has a two-piece toilet design to prevent leakage, and the flapper valve assembly is compatible with all three-inch flush holes. The flush valve comes in blue, green, and orange. The product weighs approximately 0.4 pounds.


  • Easy installation
  • Lightweight


  • Not suitable for one-piece toilets

10. Best With Adjustable Height: Plumb Pak Flush Valve

Plumb Pak Flush Valve


Plumb flush valve has 40 percent more efficient flushing using the same amount of water. It can transform any poor flush toilet into an efficient toilet and is compatible with most standard toilets with a two-inch flush valve. It is made of sturdy plastic material.


  • Adjustable height
  • Saves water
  • Easy to install


  • The chain may not be durable

11. Best with Sleek Look: EZ-FLO Flush Valve

EZ-FLO Flush Valve


The white color toilet flush is made of high-quality plastic to ensure durability. EZ-FLO’s flush valve is designed for use in Eljer toilets. It has a chrome-finish, corrosion, and rust-free handle and adds a touch of modern and sleek look to your toilet.The package includes a plastic handle, rubber float, and a flush valve.


  • Durable
  • Easy-to-install


  • The chain is too small

Things To Consider When Choosing A Toilet Flush Valve

Before buying the best toilet flush valve, pay attention to the following points. 

  1. Compatibility: Choose a toilet flush compatible with your toilet. There are many valves on the market that have universal fit. Before replacing, be sure to measure the size of the valve.
  1. Water saver: Most toilets are economical and use less than one gallon of water per flush. Choose flush valves with water-saving functions so that you save water expenses.
  1. Installation: Replacing a flush valve can be a difficult task. Therefore, choose a product with easy-to-install features.
  1. Durability: When purchasing a flush valve, always pay attention to its construction. The product should comply with ADA standards to avoid corrosion or rust.

Why Trust MomJunction?

We bring you this list of the best toilet flush valves to improve your washroom experience. These valves have been chosen to help you save water, reduce your water bill, and ensure a clean toilet. To curate this list, we referred to numerous customer reviews and product ratings, and only those with the highest customer satisfaction have been listed here. We have also put together a buying guide to help you make an informed choice.

Frequently Asked Questions

1. Does a toilet flush valve size matter?

A flush valve is a crucial part of the toilet as it moves the water from the tank to the toilet bowl. The bigger the flush valve, the stronger the water pressure when a toilet is flushed.

2. How do I know if my toilet uses a two-inch or three-inch flush valve?

The size of a flush valve may be determined by the inner diameter of the drain. If the measuring tape gives a reading of 1.8-2 inches, the toilet may have a two-inch valve. On the other hand, if the tape gives a reading closer to three inches, the toilet may have a three-inch valve.

3. Do most toilets have two-inch flush valves?

Yes, the standard size of a flush valve is two inches. However, toilets manufactured in recent years may have flush valves that are wider than two inches.

Now that you’ve scrolled through the above list choosing the best toilet flush valve for your washroom shouldn’t be a hassle. We recommend that you check their compatibility with the product in the toilet. Make sure the one you pick requires only a reasonable amount of water. Its installation should be easy and comfortable to use. More importantly, the valve should be made from durable material so that it can be used for a more extended period without any issues.

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Sakshi John

Sakshi did her graduation in Journalism from the Madras Christian College, Chennai, before starting her career as a freelance writer. She is into blog writing and for MomJunction, she covers various topics, including products to buy for your kitchen, furniture, and other home requirements. Previously, she interned as a content writer in a cyber security firm. As a content writer, Sakshi...
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