Best Toilet Flappers of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 15, 2025

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Toilet flappers are essential components of a toilet tank, responsible for controlling the flow of water from the tank into the bowl. They are made of rubber or silicone and come in various sizes and shapes to fit different toilet models. A malfunctioning flapper can cause water waste and an increase in the water bill. It can also lead to a running toilet, which is not only annoying but can also be costly. Replacing a faulty flapper is a simple and inexpensive fix that can save money and conserve water.

At a Glance: Our Top Picks

Fluidmaster 502P21 PerforMAX Toilet Flapper Cover #TOP 1
Fluidmaster 502P21 PerforMAX Toilet Flapper
ftb score rating icon 9.9
Fluidmaster 504 Toilet Flapper Cover #TOP 2
Fluidmaster 504 Toilet Flapper
ftb score rating icon 9.8
Korky 3060BP Universal Toilet Flapper Cover #TOP 3
Korky 3060BP Universal Toilet Flapper
ftb score rating icon 9.6

Top 10 Toilet Flappers

#TOP 1

Fluidmaster 502P21 PerforMAX Toilet Flapper

F502P21
1 Pack
Fluidmaster 502P21 PerforMAX Toilet Flapper Cover
Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 pack

The Fluidmaster 502P21 PerforMAX Universal Water-Saving Toilet Flapper is a durable and efficient solution for common running toilet problems. Its adjustable dial design optimizes flush performance and water use, while the solid frame and Microban materials prevent corrosion and leaks. This universal flapper fits most 2-inch flush valve toilets and is best used with high efficiency 1.28 to 1.6 gallons per flush toilets. It's easy to install and comes with a 5-year warranty.

What We Like
Easy installation
Sturdy and durable materials
Adjustable flush settings
Good value for money
Effective leak prevention
What We Don't Like
May require minor adjustments
Not always perfectly universal
#TOP 2

Fluidmaster 504 Toilet Flapper

Pack of 1
Fluidmaster 504 Toilet Flapper Cover
Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red

The Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper is a universal design that fits most toilets, including American Standard actuator units. It is chlorine-resistant with Microban protection and comes with a strong, kink-free metal chain. It also has a 5-year warranty and is pre-1994 Full Flush flapper. Customers have found it easy to install and it has solved their issue of water leaking.

What We Like
Easy to install
Effective leak prevention
Great value
Durable and reliable
Fits various toilet models
What We Don't Like
Initial seal issues
Chain length adjustment needed
#TOP 3

Korky 3060BP Universal Toilet Flapper

3060BP
Large (3”)
Korky 3060BP Universal Toilet Flapper Cover
Korky Large 3-Inch Premium Toilet Flapper

The Korky 3060BP Universal Toilet Flapper is a large 3-inch flapper designed to fit most HET toilets, including American Standard, Aqua source, Crane, Eljer, Ferguson, Gerber, Glacier Bay, Jacuzzi, Kohler, Mansfield, Pegasus, and TOTO. It quickly fixes running and leaking toilets, and is made in the USA with a 5-year warranty. Customers have found it to be a perfect replacement and easy to install, though some have had to fiddle with it to keep it from running.

What We Like
Easy to install
Durable thick rubber
Universal fit with adapters
Includes specific adapters for models
Made in USA
What We Don't Like
Instruction clarity could improve
Price on the higher side
#TOP 4

Fluidmaster 5403 Toilet Flapper

5403P4
3 Inch
Fluidmaster 5403 Toilet Flapper Cover
Fluidmaster 5403 3-Inch Water Saving Long Life Toilet Flapper

The Fluidmaster 5403 Toilet Flapper is a 3-inch adjustable flapper that fits most 3-inch flush valve toilets and is ideal for use in high efficiency 1.28 to 1.6 gallons per flush toilets. It features a solid frame and kink-free chain, a durable silicone seal that lasts 10X longer than regular flappers and resists chlorine and hard water, and is easy to install with two simple adjustments. Customers report that it is easy to install and works as expected, though it may not be compatible with all toilets.

What We Like
Easy installation
Stops leaks effectively
Durable silicone seal
Improved functionality
Cost-effective solution
What We Don't Like
Chain length could be longer
Price slightly high
#TOP 5

Korky 100DP 100 Flapper, 2-Pack, RED

100BP
(Pack of 2)
Korky 100DP 100 Flapper, 2-Pack, RED Cover
Korky 100 Ultra High Performance Universal 2" Flapper, (Pack of 2)

The Korky 100DP 100 Flapper, 2-Pack, RED is a universal 2 inch flapper that fits most popular 2 inch toilet brands, including American Standard, Kohler, Mansfield, and TOTO. It is made in the USA and backed by a 5 year warranty. It is designed to quickly fix running and leaking toilets and eliminate costly water waste. Customers have praised its easy installation and adjustable valve closing that allows a partial tank discharge for saving water.

What We Like
Easy installation
Universal fit
Durable material
Effective leak prevention
Cost-effective multi-pack
What We Don't Like
Occasional sealing issues
Possible manufacturing imperfections
#TOP 6

Korky 2011BP Hinge Flapper

2011BP
1 Count (Pack of 1)
Korky 2011BP Hinge Flapper Cover
Korky 2011BP Hinge Flapper For Kohler Toilet Repairs - Replaces Kohler Parts 84995 and 1000490 - Made in USA, Red

The Korky Hinge Flapper is a high-quality replacement for Kohler toilet models, including Ankara, Fables and Flowers, Laureate, Prairie Flowers, San Raphael, Revival, Rialto, and Rosario. The 2" hinge flapper comes with a stainless steel chain and is designed to quickly fix running and leaking toilets. Made from long-lasting chlorazone red rubber, this toilet part replacement is compatible with city water treatment, hard, and well water. Korky is committed to designing repair parts that are universal and easy to install. The Hinge Flapper is specifically designed to fit both older and modern toilet models.

What We Like
Easy installation
Perfect fit for Kohler Santa Rosa
Effective leak prevention
Quick shipping
Good compatibility with various models
What We Don't Like
Occasional leaks after a few weeks
#TOP 7

Korky 2017BP Toilet Flapper

2017BP
1 Count (Pack of 1)
Korky 2017BP Toilet Flapper Cover
Korky 2017BP Standard 2-Inch 2X Ultra High Performance Universal Long Lasting Rubber-Easy to Install-Made in USA Toilet Flapper, 1 Count (Pack of 1), Red

The Korky 2017BP Toilet Flapper, also known as the Korky Flapper, is a high-quality toilet flapper designed to provide durability and efficiency. Its proprietary Chlorazone II rubber is two times stronger than other toilet flappers, making it resistant to chlorine, bacteria, city water treatment, hard water, and well water. This flapper fits most 2-inch flush valves, including popular brands like American Standard, Kohler, and TOTO, making it the most universal 2-inch toilet flapper on the market. It can adjust to fit all tank sizes and matches the original toilet settings, eliminating water waste by decreasing the amount of water flushed. With its made in the USA construction and 10-year warranty, the Korky Flapper is a reliable choice for any toilet.

What We Like
Adjustable features
High-quality rubber
Easy installation
Good value for money
Long-lasting performance
What We Don't Like
Adjustment band difficult initially
Possible defects in some units
#TOP 8

Korky Korky-2001TP Universal Toilet Tank Flapper (3 Pack)

2001TP
3 Pack
Korky Korky-2001TP Universal Toilet Tank Flapper (3 Pack) Cover
Korky Korky-2001TP 2001TP Universal Toilet Tank Flapper (3 Pack) -Easy to Install-Long Lasting All Rubber Seal-Made in USA, Red, 3 Count

Korky Toilet Flapper is a 3-pack universal toilet flapper that fits most popular 2-inch toilet brands, such as American Standard, Kohler, Mansfield, and TOTO. It replaces popular rubber, float-style, and rigid frame toilet flappers, quickly fixing running and leaking toilets, and eliminating costly water waste. Korky invented the universal toilet flapper and is still the preferred brand by plumbers for superior quality and reliability. The toilet flapper is made in the USA, proudly made of flexible rubber for a tight seal on most toilet flush valves. It's easy to install and includes three universal toilet flappers and three stainless steel chains.

What We Like
High-quality material
Chlorine resistant
Easy installation
Long-lasting performance
Cost-effective packaging
What We Don't Like
May not fit all models
#TOP 9

Gerber Toilet Flapper Replacement, 2 Pack 3 inch with Chains

RF0A0304A-2-CA
Blue 2 Pack
Gerber Toilet Flapper Replacement, 2 Pack 3 inch with Chains Cover
Gerber Toilet Flapper Replacement, 2 Pack 3 inch for Gerber 99-788 with 2 Toilet Handle Chains Ullnosoo Rubber Water Saving, Easy to Install

Gerber Toilet Flapper Replacement is made of high-quality rubber and comes in a standardized design that fits Gerber 99-788. It is easy to install, saving you from the troubles caused by toilet leakage. The package includes 2 toilet flappers and 2 extra chains.

What We Like
Easy installation
Perfect seal
Durable construction
Accurate marketing information
What We Don't Like
Chain quality issues
Short lifespan reported
#TOP 10

Fluidmaster K-400H-039 Toilet Fill Valve with Flapper Kit

K-400H-039-T14
Multicolor
Fluidmaster K-400H-039 Toilet Fill Valve with Flapper Kit Cover
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit

The Fluidmaster K-400H-039 Toilet Fill Valve with Flapper Kit is the perfect solution to improve the performance of your 2-inch flush valve toilet. With the PerforMAX fill valve, you can easily adjust the tank and bowl water levels for full water control, ensuring a powerful and efficient flush every time. The kit also includes a PerforMAX Water-Saving Toilet Flapper, which helps to save water with each flush. Installation is fast and easy, and the fill valve height is adjustable to fit a wide range of toilet tanks. With a corrosion-resistant flapper and a solid frame for a secure seal, this kit offers durability and reliability. Plus, it comes with a 7-year warranty, providing peace of mind. Upgrade your toilet with the Fluidmaster K-400H-039 Toilet Fill Valve with Flapper Kit and enjoy improved performance and water savings.

What We Like
Easy installation
Quiet operation
Adjustable height
Durable materials
Powerful flush
What We Don't Like
Possible leaks at adjustment points
Quality concerns reported
Buying Guide Image

A Guide to Selecting the Best Toilet Flappers

Introduction

Toilets are essential fixtures in any bathroom. With their flushing mechanisms and other components, they need regular maintenance and upkeep to ensure they run properly. Toilet flappers are one of the most important parts of a toilet and require careful consideration when choosing the right one. With so many types of flappers on the market, it can be difficult to know which one is best for your needs. This guide will provide an overview of toilet flappers and the criteria to use when selecting one.

Different Types of Toilet Flappers

When it comes to toilet flappers, there are several types to choose from. The three most common types are rubber, plastic, and foam flappers.

Rubber flappers are the most commonly used type and are the most cost-effective. They are usually the least durable, however, and tend to need replacing more often than other types.

Plastic flappers are more durable than rubber flappers and often come with warranties. They are also more expensive than rubber flappers but can last longer.

Foam flappers are the most durable type of flapper and are the most expensive. They require less maintenance and can last the longest, but they are also the least common type.

Factors to Consider

When selecting a toilet flapper, there are several factors to consider. First, the material of the flapper should be taken into account. Rubber, plastic, and foam all have their own benefits, so it is important to choose the material that is best for your needs.

Second, the size of the flapper should be considered. Different toilet models require different size flappers, so it is important to make sure you get the right size for your toilet.

Third, the type of seal should be taken into account. Different toilet models require different types of seals, so it is important to choose one that is compatible with your toilet.

Finally, it is important to consider the brand of the flapper. Different brands offer different levels of quality and warranties, so it is important to choose one from a reputable company.

Conclusion

Selecting the right toilet flapper for your needs can be a challenge, but with the right information, it can be done. Taking the time to consider the material, size, type of seal, and brand of the flapper can help ensure you get one that is compatible with your toilet and will last for years to come.

Frequently Asked Questions (FAQs)

1. Are toilet flappers universal?

No, toilet flappers are not universal. While there are universal designs like the Fluidmaster flappers that can replace most other flappers, there are also specialty flappers available for specific flushing systems.

2. How often do toilet flappers need to be replaced?

In general, toilet flappers should be replaced every three to five years. Over time, the rubber component of the flapper can deteriorate, leading to leakage. Harsh drop-in bowl cleaners can also contribute to the deterioration of the flapper.

3. What happens if you don't replace toilet flapper?

If a faulty flapper is not replaced, it can result in a leaky toilet, leading to increased water consumption and higher utility bills. A poorly fitted or warped flapper can waste up to 200 gallons of water per day.

4. Are toilet flappers easy to replace?

Yes, toilet flappers are relatively easy to replace. They can be purchased at local hardware stores for a few dollars and do not require specialized tools or training to replace. While they may need to be replaced every two years or so due to corrosion, homeowners can often handle the replacement themselves.

5. What is the difference between plastic and rubber toilet flappers?

The plastic part of a toilet flapper provides rigidity and allows it to connect to the overflow tube. The rubber part of the flapper creates a tight seal over the flush valve, preventing water from escaping the tank.

6. Can I replace toilet flapper myself?

Yes, replacing a toilet flapper is a repair that can be done by most homeowners. A leaking or damaged flapper can waste significant amounts of water, so it's important to fix it. The repair requires no specialized tools or training, and homeowners are encouraged to handle the replacement themselves.

Editor's Notes

During our toilet flapper research, we found 24 toilet flapper products and shortlisted 10 quality products. We collected and analyzed 158,083 customer reviews through our big data system to write the toilet flappers list. We found that most customers choose toilet flappers with an average price of $12.70.

The toilet flappers are available for purchase. We have researched hundreds of brands and picked the top brands of toilet flappers, including Fluidmaster, Korky, Ullnosoo. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.

Toilet Flappers Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Fluidmaster Fluidmaster Korky Fluidmaster Korky Korky Korky Korky Ullnosoo Fluidmaster
Material Rubber Plastic Rubber Rubber Natural Rubber Chlorazone Rubber Rubber Rubber - Plastic
Item dimensions L x W x H 4.9 x 3.5 x 3.5 inches - - 5.25 x 9 x 3.25 inches 8.5 x 7.5 x 1.75 inches - - 4.5 x 2.75 x 1.25 inches - 3.54 x 6.3 x 14.37 inches
Outlet Connection Type Flange - - 3-inch connection 2 inch - - 2 inch flush valve - FNPT
Outlet Connection Size 2 Inches - - 3 Inches 2 Inches - - 2 Inches - 2 Inches
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 8.9
ftb score rating icon 8.7
ftb score rating icon 8.5
Where to Buy