Best Toilet Flush Valve - 2020 Review

Flush valves ensure the water in your toilet is being circulated every time you flush. Without a good flush valve, your toilet can leak and even cease from working. It can be hard to know which product is best for a long-lasting performance.

We’re here with everything you need to help you choose the best toilet flush valve for your home in 2020; judged on their materials, compatibility, value, and durability.

6. American Standard Champion Universal Replacement Flush Valve

Best Feature: Durable Replacement Part for Long-Lasting Toilets

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This high-quality product is made to last. It is designed for the Champion line of toilets and will keep it running leak-free for years. Moreover, it comes with a 3.4-inch, durable chain and everything you need to replace your old Champion flush valve.

Features Overview:

Material: Plastic, metal
Flush valve size: 4 in/10.1 cm
Model compatibility: Any American Standard Champion toilet
Tube length: 7 in/17.7 cm
Product weight: 1 lb./.45 kg
Model number: 3174. 105-0070A

Pros

Designed to last: Since this product is specifically designed for Champion toilets, it could be the best toilet flush valve for ensuring your Champion toilet lasts for years to come

Appealing design: Not only are the aesthetics sleek and modern, but the materials used in this flush valve are designed to withstand over-use and hard water

Easy to install: American Standard ensures that their replacement parts are easy to install and their toilets are easy to work with

Cons

Only for Champion line of toilets

More expensive than some other universal options

5. Fluidmaster Complete Adjustable Toilet Flush Valve Repair Kit

Best Feature: Adjustable Tube for Universal Fitting

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Fluidmaster is known for their convenient, quality parts and accessories. This 3-inch flush valve comes with an adjustable flapper that helps optimize performance and save money. The kit even comes with all the parts, accessories, and instructions to easily install it.

Features Overview:

Material: Plastic, metal, silicone
Flush valve size: 3 in/7.6 cm
Model Compatibility: Universal
Tube length: Adjustable from 5.5-8 in/13.9-20.3 cm
Product weight: 1 lb./.45 kg
Model number: 540AKRP5

Pros

Durable materials: This flush valve is designed with an extra-durable silicone seal and other materials that are resistant to corrosion

Warranty: Fluidmaster guarantees their flush valves are made to last with a 5-year warranty

Adjustable tubing: This flush valve’s overflow tube can be adjusted to fit the height of most regular-sized toilets

Cons

Some customers state that the adjustable flapper can experience a slow leak when not adjusted properly

4. Kohler Flush Valve Kit

Best Feature: AquaPiston Flush Technology

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Kohler uses their specialized technology to minimize the water you use with every flush. This doesn’t look like your standard flush valve and it’s only designed for Kohler toilets, but its durable design and fortified sealing capabilities make it the best toilet flush valve for your Kohler.

Features Overview:

Material: Metal, plastic
Flush valve size: 3 in/7.6 cm
Model compatibility: Kohler toilet models
Tube length: 9 in/22.8 cm
Product weight: 1 lb./.45 kg
Model number: K-1188998

Pros

Specially-designed: This flush valve is designed to fit perfectly into Kohler’s line of toilets, so it maximizes that particular toilet’s performance

Resistant to corrosion: Kohler used only the best products, so the build is surprisingly heavy-duty and long-lasting

1-year warranty: You won’t have to worry about anything going wrong since Kohler will replace the flush valve for up to one year

Cons

Does not come with flapper

Only fits Kohler toilets

3. Plumbcraft Toilet Flush Valve and Flapper

Best Feature: Simplicity and Value

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You won’t find any bells and whistles with this flush valve, but you won’t need it. The thin, sleek, and simple design focuses on sealing properly and minimizing leaks. Plumbcraft’s reliability has extended more than 5 decades, with streamlined, innovative products like the 3-inch flush valve.

Features Overview:

Material: Plastic, rubber
Flush valve size: 3 in/7.6 cm
Model compatibility: Universal
Tube length: 7 in/17.7 cm
Product weight: .63 lb./.28 kg
Model number: 7644500

Pros

Tight seal: Plumbcraft’s flush valve and flapper are designed to resist corrosion and keep its seal

Long chain: The chain provided with this flush valve is longer than some others; reducing the chances of kinking or breaking

Thin, sleek design: The tubing on this flush valve is thin and streamlined, to minimize the amount of water you use with each flush

Cons

Light materials may need replacement sooner

Does not come with gasket replacement for installation

2. Fluidmaster Universal Toilet Flush Valve and Flapper Replacement

Best Feature: Anti-Corrosive, Antimicrobial Materials

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The trusted design in this product makes it a fan favorite when it comes to the best toilet flush valve and it’s easy to see why. Fluidmaster’s 2-inch, universal flush valve comes with water-efficiency technology, easy installation parts, and a light but sturdy build.

Features Overview:

Material: Plastic, metal
Flush valve size: 2 in/5.0 cm
Model Compatibility: Universal
Tube length: 8 in/20.3 cm
Product weight: .53 lb./.24 kg
Model number: 507A

Pros

High-quality materials: Every part of this flush valve contains antimicrobial materials, so it can withstand germs, bacteria, hard water deposits, and more

5-year warranty: Fluidmaster guarantees your toilet will run leak-free for at least 5 years, or you get your money back

Universal design: This flush valve is streamlined to produce maximum performance in any toilet with a 2-inch flush valve

Cons

Tubing does not adjust as other Fluidmaster products do

Only works best on toilets that use more than 3.5 gallons (13.24 liters) per flush

1. Keeney High-Performance Adjustable FlushAll Flush Valve

Best Feature: Vortex Flapper Enhances Flush Valve

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If it’s even possible for a flush valve to be “cool,” this one fits the bill. It has an amazing aesthetic and a totally unique design. You can adjust the tubing to fit most toilets and it includes everything you need to install it. Finally, the unique design of the flapper means incredible water savings.

Features Overview:

Material: Plastic, silicone
Flush valve size: 2 in/5.0 cm
Model Compatibility: Universal
Tube length: Adjustable from 8.5-13 in/21.5-33.0 cm
Product weight: 1.3 lbs./.58 kg
Model number: K835-9

Pros

Funneling flapper: The vortex-like design of the flapper increases the flushing power while minimizing water usage

Saves water and money: With Keeney’s flush valve, customers report savings of up to 2,500 gallons (9463.5 liters) of water each year

Dual modes: The included flapper is adjustable to either performance or water-conservation mode

Cons

Customers claim that the included chain may kink easily

Conclusion

Finally, the parts and accessories you’ve seen here today can act as a guide when you need to choose the best toilet flush valve for your toilet. Trusted, reliable, and durable, these picks are sure to last. Pick any one of the flush valves on this list and let us know: how much water do you think you’ve saved?

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6. American Standard Champion Universal Replacement Flush Valve

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5. Fluidmaster Complete Adjustable Toilet Flush Valve Repair Kit

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4. Kohler Flush Valve Kit

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3. Plumbcraft Toilet Flush Valve and Flapper

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2. Fluidmaster Universal Toilet Flush Valve and Flapper Replacement

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1. Keeney High-Performance Adjustable FlushAll Flush Valve

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Conclusion

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