Best Toilet Flappers in 2021 – Top Models Reviewed!

Imagine a situation where you flush your toilet only for you to notice a continuous trickle long after you left the bathroom. This happens when water from the tank leaks straight to the bowl without stopping when it should.

When your toilet behaves in this manner, chances are that your toilet flapper is faulty. The outcome of this situation includes high water bills that you will pay due to water wastage.

A toilet flapper is a rubber device that comes fitted in your tank in such a way that it seals water in the tank before and after flushing. It opens up when you flush and then closes to a watertight seal to prevent water flow.

In this article, we review 10 of the top rated toilet flappers that you can consider buying in case your current flapper is faulty. If the best toilet flapper is what you have been looking for, then you are in the right place. Read on!

10 Best Toilet Flappers

1. Fluidmaster 703AP4 Toilet Fill Valve

If you have been looking for a special toilet flapper to replace your faulty old one, then Fluidmaster 703A is right here for you. This toilet flapper is specially designed to replace faulty, old, or inefficient Glacier Bay or Niagara flapper less toilet fill valves. Once fitted, it will maximize your toilet’s refill performance.

This toilet flapper comes with manual installation instructions to make it easy for you to install. Moreover, its design ensures that you can install it quickly and easily; you don’t have to hire a plumber to fix it.

Fluidmaster 703AP4 Special Toilet Fill Valve

This flapper is built using high-quality materials that make it long lasting. Its materials are also corrosion resistant, implying that it won’t break down or be ineffective due to corrosion.

It is an OEM replacement toilet fill valve backed by a one-year warranty. If you have an old ineffective flapper valve, therefore, Fluidmaster 703A can be a perfect replacement.


  • It’s an OEM replacement fill valve
  • It’s easy to install
  • Enhances your toilet’s performance


  • Works great with Glacier Bay and Niagara Flapperless toilets

2. Korky 2021BP TOTO Toilets Repairs

This toilet flapper comes with a large sealing surface meant to fit all TOTO toilet models. It is manufactured from high-quality materials of chlorazone rubber that keeps up with chlorine, bacteria, and hard water to make it long lasting.

Its design also ensures that its installation process is easy. As a result, you won’t require any tools in order to install this toilet flapper. Moreover, you don’t have to hold down the toilet lever so as attain a full flush once you install this G-Max toilet flapper.

Korky 2021BP G-Max TOTO Toilets Repairs

Replacing your old or faulty toilet flapper will give you a higher performing toilet that saves you water while allowing the tank to refill quickly.

It is manufactured in the US and is certified as a high-quality toilet part that is specifically designed for the repair and maintenance of both new and older toilet models. As such, if you have a TOTO toilet model with a faulty flapper, this could be your best pick.


  • Made from high-quality materials
  • It is durable with chlorine resistant rubber
  • It is reasonably priced


  • Works with TOTO toilet brands

3. American Standard 3174.002-0070A Champion 4 Flush Valve

The American Standard toilets and their replacement parts are designed to be reliable in your busy bathroom life. This replacement flush valve is purely designed for use with the champion 4-line of two-piece toilets.

It features a quality engineering that is meant to be long-lasting. It also improves the overall fulfillment of your toilet while complementing the great looks of your bathroom faucets.

American Standard 3174.0070A

When it comes to its installation, the process is simple and straightforward. As such, there is no need to hire a professional plumber to fix this small but crucial toilet flapper.

If you want a perfect replacement for your ineffective old toilet flapper that is wasting water to hike your water bills, consider this American Standard toilet flapper.


  • Enhances toilet performance
  • Durable with high-quality materials
  • Great construction design for greater looks


  • The large exit tube reduces the power of the flush

4. Kohler Part GP5160

This Kohler GP5160 toilet flapper is designed to leave a great performance mark in your house. With this, you have a reason to replace your old and ineffective toilet flapper.

This replacement flapper is designed to be durable thanks to its high-quality material construction. Once you replace this, you will be sure to have a long-lasting, effective, and high-performing toilet for many years.

Kohler Part GP5160

This 2-inch flapper with a floater can be used in various 1.6 GPF two-piece toilets. It fits in various Kohler toilets perfectly as well as in all KALLISTA toilets.

As a Kohler genuine part, it is designed and constructed by Kohler engineers in order to maintain its originality and high performance while improving its durability.


  • It is easy to install
  • Works well with Kohler toilets
  • Durable with high-quality materials


  • Might leak

5. Next by Danco FLT231T Alternative Toilet Tank Flapper

This HydroStop toilet flapper replacement is designed to eliminate the most common toilet leaks and other flush issues. It does this by dropping directly and solidly onto the flush valve opening in order to create a better seal while sealing any possible leaks.

It also features S.T.O.P. technology that helps to prevent bowl overflows. The vertical engineering creates an effective seal on the flush. Most importantly, it comes with adjustable water settings and a premium silicone seal that optimize water usage.

HydroStop Toilet Tank Flapper Replacement

This HydroStop toilet flapper is designed for the easy installation process. You simply remove the older or faulty flapper and then drop the HydroStop. Once it is secured in the tank you can return the handle and tighten it to its place.


  • It is easy to install
  • It prevents water overflow
  • Made from high-quality materials


  • Well-designed to prevent leaks

6. Korky 2022Bp Toto Pwr Grav Flapper

This toilet flapper from Korky comes with a large sealing surface that can fit all TOTO toilet models easily.

It features high-quality chlorazone rubber that is resistant to chlorine, city water treatment, bacteria, well water, and hard water. This makes the flapper very durable and capable of delivering a tight seal.

Korky 2022BP Power Gravity TOTO Toilet Repairs

You don’t need to have tools in order to have this flapper installed in your toilet tank. It is designed to ensure its installation is easy with a stainless chain. To achieve a full flush with this Power Gravity toilet flapper, you are only required to hold down your toilet lever.

Since it is manufactured in USA, this toilet flapper meets the entire universal standards specific to toilet repair needs regardless of whether the toilet is new or old. If you need a high-quality replacement toilet flapper, therefore, you could try this one from Korky.


  • Fits most toilet brands and models
  • It is long lasting since it comes with chlorazone resistant rubber
  • It is easy to install


  • The chain is too short
  • Works great with TOTO toilets only

7. Elijer Flush Valve, PVC

This flush valve is made using high-quality materials to deliver a quality performance. It is also designed to completely seal off water leakages that increase your water bills.

The flush comes with a tank lever and a rubber tank ball that are crucial at sealing off the water before and after every flush.

Elijer Flush Valve

It is very easy to install this toilet flapper since it comes with a manual installation guide. Moreover, it is a straightforward procedure that involves simple and easy to follow instructions.

This means that the flapper might be the ideal choice if you are looking for a perfect toilet flapper that is easy to install.


  • It is a high-quality toilet flapper
  • It is easy to install
  • It is durable with high-quality materials and design


  • It is hard to find
  • Slightly expensive

8. TOTO THU500S Flapper Flush Valve Tanks

The Toto THU500S is made with a durable plastic material that is capable of handling your toilet leakage problems. It also has slightly different angles to deter leaking issues that frequently occur in the small sections of the tank effectively.

This replacement toilet flapper is designed for use on a selection of TOTO 3-inch flush valve tanks. This means that if your TOTO toilet model is having issues with leakages, then this is the right replacement flapper to have.

Toto THU500S Replacement Flapper

Its design makes its installation process easy since you can complete it without the use of tools. However, this flapper requires adjustment during the installation process in line with the configuration guide. The directions of installation, however, need to be clearer to ensure that you can install it in a manner that prevents water leakage.


  • It is easy to install process
  • It works well
  • Durable since it is made of high-quality construction materials


  • Mediocre installation instructions

9. Master Plumber 714-7 Fit All Toilet Flapper

This Master plumber 714-7 toilet flapper replacement is designed and constructed of rubber material and a stainless steel chain. The rubber material is corrosion resistant to hard water and chlorine. This makes it durable, especially with the stainless steel chain.

This toilet is uniquely designed to fit all regular Douglas type flush valves, crane fixtures without overflow tubes, and style plastic flush valves.

Master Plumber 714-7 Fit All Toilet Flapper

This is an easy to install toilet flapper since it only requires you to take the old or faulty flapper and then mount it on the already installed one. Even with this simple installation process, it fixes all the leaking issues.


  • It is easy to install
  • Effectively stops leaks
  • Made durable with corrosion resistant rubber material


  • It is expensive
  • Cheaply made

10. Fluidmaster 5403 3-Inch Universal Water Saving Long Life Toilet Flapper

This Fluidmaster 5403 3-Inch is specially designed to deal with the most common corrosion and toilet leaking problems. It comes with a 3-inch flapper that is effective in preventing all kind of leaking problems.

It is also designed to fit in most toilet models perfectly. As such, it features a universal design for easy installation to any toilet model.

Fluidmaster 5403 3-Inch Universal Water Saving Long Life Toilet Flapper

It is constructed using a durable silicone seal that is resistant to corrosion from hard and chlorine water. The universal flapper is easy to install with just two simple adjustments to replace the old and inefficient toilet flapper. Most importantly, it is backed with a 10-year warranty.


  • It is a universal flapper
  • It is easy to install
  • It comes with a kink free chain


  • Expensive

How To Choose The Best Toilet Flappers

When you go shopping for a toilet flapper, it is important to check out some of the features that define the best toilet flapper. Before you settle on any toilet flapper, take into consideration these key features in order to identify the toilet that best suits your needs.

Toilet Flappers Reviews

Size of the Flapper

Toilet flappers come in different sizes that can be accommodated in different sizes of flush valve drains. Most flush valves come in either a 2-inch drain or a 3-inch drain. As a result, you need to check the kind of flush valve your toilet has before buying a flapper.

Toilet flappers, on the other hand, come as 2-inch or 3-inch and are flexible and sturdily framed. As a result, be sure to pick the right size that will fit your flush valve perfectly.

Type of Frame

The type of frame also determines the kind of toilet flapper your buy for your toilet. Most frames tend to comes with pure rubber construction. Rubber frames are good generally because their design allows them to fit almost in all the different modern flush valve drains.

A Solid frame, on the other hand, tends to be effective in stopping your toilet from leaking but doesn’t work great with wall flush valve drains.

Easy to Install

You definitely do not want to get something that will give you hard time when it comes to installation. So, it is important to consider toilet flappers that are easy to install – go for the simple, quick, and easy installation process. This will even save you money that you could otherwise have used to hire a plumber.


Most toilet flappers come with a warranty. This is a good thing because it shows that the manufacturer is truly behind their products. Consider getting toilet flappers that are backed with at least a 5-year warranty.

Frequently Asked Questions

Q: Why does my toilet continue to run after flushing?

Ans: If your toilet continues to run after flushing and you discover that after jiggling the handle it stops, then the issues might be that the chain regulating the flapper is way too long. So when installing the flapper, make sure the chain’s S-hook is close to the handle.

Q: How long should the flapper parts last in my toilet?

Ans: The durability of the parts is dependent not only on which part but also on the quality of the water you use when flushing your toilet. If your water is chlorinated, then most of the parts won’t be durable. You also need to know that the quality of the parts you got matters. However, most flapper and seals can last as long as 5 years.

Q: How do I replace a toilet trip lever?

Ans: This takes a few simple steps. Simply unfasten the flapper chain from the trip lever and unscrew the nut inside the tank that holds the handle in place. When the locknut is fully removed, pull the trip lever out of the hole in the chain. Install the new handle by tightening the locknut. Don’t over-tighten it since it could strip the threads. Finally, reattach the flapper chain to the trip lever while leaving a little slack in the chain.

Final Verdict

It is important to have a high-performing flapper in your toilet in order to have an easy flushing experience while saving on water. By regularly checking and cleaning your tank and the flapper, you will be sure to have a durable toilet flapper.

However, once you start experiencing issues such as leaking with your toilet, it is important to have the flapper changed. Buying the right toilet flapper for your toilet, therefore, will be your best option if you want to reduce the chances of incurring leakages.

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