Fact Checked By:Samuel Carter

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The ordinary water closet uses water to flush out wastes from the toilet bowl to the municipal drainage. It makes use of a toilet flapper to regulate the outflow of the water and to minimize the loss of the water thereof. To do this, it attaches to the overflow pipe.


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It works by using a small circular disk to conceal the overflow valve and prevent the water from seeping out through it. In the event that you flush the toilet, the flapper exposes the overflow pipe to let the water out. A water reservoir maintains the flapper in the open position by acting as a weight.

With use, the flapper wears out. There is the need hence to replace it as soon as possible owing to the significant role it plays in facilitating the flushing of the toilet. This of course demands that you know the leading brands of these products and how to make a suitable find.

We prepare this article to help you in making a suitable find. The article identifies and reviews ten of the best toilet flappers on the market at the moment. Then, it goes ahead and guides you through the tips you may look up to so that you may narrow to a suitable pick. You can follow this article to get more complete guide line about different toilet parts.

[dt_fancy_title title=”OUR TOP PICKS” title_size=”h2″ title_color=”custom” separator_style=”thick” custom_title_color=”#1e73be”]
[dt_fancy_title title=”Top 10 Toilet Flappers in 2023″ title_size=”h2″ title_color=”accent”]

In a Hurry? Check the Best Toilet Flapper Review From Amazon. Just Check the Product Link, the Detail and Price.

American Standard 738920-0070A 3-Inch Flapper Assembly,...
American Standard 738920-0070A 3-Inch Flapper Assembly,...
3" Flapper Assembly, 1.6 gpf; Durable construction; Check the repair part information for your toilet to confirm compatibility
Korky 5030BP Universal Toilet Flush Valve, Flapper and...
Korky 5030BP Universal Toilet Flush Valve, Flapper and...
MADE IN USA - Proudly made in America and backed by a 5 year warranty
TOTO THU500S Replacement Flapper for Select 3 Inch...
TOTO THU500S Replacement Flapper for Select 3 Inch...
Size: 3 Inch.3 inch sealing surface; Polypropylene body with rubber sealing surface; Flapper includes chain along with instructions for set-up specific to TOTO tank model.
Fluidmaster 400AKR Universal All in One Toilet Repair...
Fluidmaster 400AKR Universal All in One Toilet Repair...
5-YEAR WARRANTY: This product has a 5-year warranty
KOHLER GP1105825 Flapper with Float Kit
KOHLER GP1105825 Flapper with Float Kit
Kohlerflapper with float kit for sterling toilets, 1.28 gph - 2475627; This is highly durable
Lavelle Ind. Inc. Toilet Flapper 2004BP
Lavelle Ind. Inc. Toilet Flapper 2004BP
Korky 100BP Ultra High Performance Flapper Fits Most...
Korky 100BP Ultra High Performance Flapper Fits Most...
QUICKLY FIX running and leaking toilets and eliminate costly water waste.
Fluidmaster 5403 Water-Saving Long Life Toilet Flapper...
Fluidmaster 5403 Water-Saving Long Life Toilet Flapper...
Solid frame for the best seal- no twisting.; Universal flapper; Easy to install with two simple adjustments
Fluidmaster 502P21 PerforMAX Universal Water-Saving...
Fluidmaster 502P21 PerforMAX Universal Water-Saving...
Adjusts for maximum flush efficiency; Fixes most common cause of a running toilet; Rigid frame aligns flapper properly on every flush
Fluidmaster 555CRP8 Universal PerforMAX 5 Minute Toilet...
Fluidmaster 555CRP8 Universal PerforMAX 5 Minute Toilet...
Universal Design, fast and easy-to-install; Peel and Stick design eliminates messy glue, with no tank removal

If you feel a toilet flapper is not for you, have a look at our guide and reviews of the best toilet bowl parts or best long lasting toilet brush or best economical toilets or best rated alcove soaking tub.

[dt_fancy_title title=”BUYING GUIDE: HOW TO FIND THE BEST TOILET FLAPPER” title_size=”h2″ title_color=”accent”]

Let us now take a look at some of the factors you may wish to consider to make the most suitable purchase of the best toilet flapper:

[dt_quote]√ Age of the toilet[/dt_quote]

The age of the toilet should be your first and foremost consideration. You have to make a deliberate effort to match the age of the flapper with the age of the toilet. This is to ensure seamless compatibility and guarantee uninterrupted operations thereafter. Bring in an expert to help you with this.

[dt_quote]√ The nature of the frame[/dt_quote]

You should also consider the nature of the frame. With regards to this, there are two main kinds of frames. These are the flexible and the solid respectively. Of these, the flexible one is better as it is more responsive and less likely to cause inconveniences when operating.

[dt_quote]√ Flapper size[/dt_quote]

Of course, the size of the flapper also matters considerably. You have to examine the size and see to it that it fits seamlessly in the space allotted to it in the water closet. This again will prevent the inconsistencies that may usually arise in the course of discharging the duties.

[dt_quote]√ Type[/dt_quote]

Lastly, you have to figure out the type of flapper. There are three main kinds of these flappers. These are the seat disk, tank ball, and rubber variety respectively. As you factor in the type, you should also bear in mind the configuration of the tank and the manufacturer’s recommendations.

[dt_fancy_title title=”BEST TOILET FLAPPER REVIEWS” title_size=”h2″ title_color=”accent”]

In this segment of our discussions, we identify and examine in detail, ten of the best toilet flappers that the markets have to offer at the moment:

1. American Standard 738920-0070A 3-Inch Flapper Assembly, White, 3 in

If you have a busy lifestyle, you need to tap into an American Standard product of this kind. It is on the whole engineered for the busy lifestyle. This is possible due to its ability to retain its super strength.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Superb design

Overall, the gadget comes about in a superb design that sees it last longer and manages more reliable applications. You may count on it not to let you down when you badly need it to stand out.

√ Flawless functionality

Over and above the superior design, this product is also intended to function flawlessly. Hardly does it break apart even when bombarded with strong and intense impacts as others do. In this way, it is reliable in the long run.

√ Excellent performance

Then, the item guarantees excellent performance whenever it is called upon to do its job. This is further evidenced by the fact that it blends seamlessly with the fixtures in the home and the bathroom areas.


√ Installs faster and with the utmost confidence manageable
√ Compatible with many of the home fixtures
√ Comes about in a reliable and superior design
√ Easier to repair after the same has sustained any malfunctions
√ Packaged in quality and durable constructions


× Its cost of acquisition is somewhat through the roof

2. Korky 5030BP Universal Toilet Flush Valve

By and large, this flapper is designed to fix many of the common fill valve issues. These include noise, running, and no-refiling issues. Get your hand on it for all your repair tasks thus.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Adjustable 3-inch flush valve

Its flush valve unit adjusts to allow for seamless handling and engagement. Further to this, it also pairs well with the bowl gasket to enable smoother operations insofar as the discharge of water is concerned.

√ Quick and easy to install

Overall, the item is quicker and easier to set up for eventual use. This is mainly informed by the fact that its height adjusts from 7 to 11 ½ inches without the need to make use of tools to affect the adjustment.

√ Oversized tube and funnel

An oversized tube and funnel wrap up the sum total traits that the flapper has. They are leak-proof and incapable of letting out the water to the surrounding environment as the flapper operates.


√ Comes about as a comprehensive kit
√ Incorporates the most universal flapper that measures 3 inches
√ Relatively simpler to install as it does not require any tool
√ Pairs and works alongside many of the leading brands and machinery
√ Lasts a very long duration of time thanks to its durability


× An inexperienced user may find it somewhat complicated to handle

3. TOTO THU500S Replacement Flapper for Select 3 Inch Flush Valve Tanks, Red (1 Pack)

On the basis of its design, this item functions as a replacement flapper. It is hence mainly used to replace a faulty or malfunctioning flapper rather than being used as a standalone gadget of its kind.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ 3-inch sealing surface

A 3-inch sealing surface ranks at the very top of its offerings. It is the one that lets you pair this gadget with the existing items for the sake of proper fitting and seamless operations thereafter.

√ Polypropylene body

In its entirety, the body of the flapper bears the Polypropylene material makeup. Thanks to this arrangement, the gadget is stronger and more enduring in the long run. That makes it also quite reliable in all.

√ Rubber sealing surface

To tighten your joints, you will rely on the rubber sealing surface of the flapper. It is heavily threaded and well capable of making tight and enduring joints that can withstand the impacts leveled against them.


√ Bears the 3-inch sealing surface for tighter joints
√ Its Polypropylene body is strong and enduring
√ A rubber sealing surface exists to make the joints tougher and more enduring
√ Able to pair and work alongside many other like-minded gadgets
√ Backed with specific instructions for installation and handling


× Manages limited purposes (may only be used for replacement)

4. Fluidmaster 400AKR Universal All in One Toilet Repair Kit for 2-Inch Flush Valves, Easy Install

If you have many kinds of water tanks to work with, you need to use a universal flapper, such as this. Its all-in-one stature guarantees you the ability to attach it to as many gadgets as can be for the purpose of easier operations.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Universal design

As noted above, this is an all-in-one flapper that comes in a universal design. Thanks to its universal character, the item may easily adjust and many flash valves of varying dimensions. It is overall suitable for 1.6 – 3.5 gallons per flush.

√ High-performance flapper

When all factors are put into consideration, the item does perform exceptionally high. With this high performance, you may conveniently maximize the usage of water per flushing undertaking. Of course, this leads to reduced utility expenses.

√ Seamless fitting

Almost all its critical parts are adjustable. As a matter of fact, the gadget may fit many flush valves that measure roughly 2 inches. This way, it fits many of the common toilets and also works extra hard to sort out the common issues.


√ Restores all the performance metrics of the toilet
√ Most users have noted that it installs in a matter of minutes
√ Backed by a generous 5-year warranty
√ Enables a complete overhaul of the toilet tank
√ Comes with everything you need for the job


× Only for the expert user

5. KOHLER GP1105825 Flapper with Float Kit

If yours are the Sterling toilets, you need not look further than this set of the flapper. This is a flapper and a float kit for the Sterling toilet brand. It is compatible with them and does a really thorough job.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Genuine Kohler Parts

All the parts of the flapper are stronger and genuine. They subsequently last longer thanks to their similarly higher quality. That of course means they lead to more satisfactory and enduring outcomes when all factors are considered.

√ Float kit

A float kit also comes along with this flapper. You use it to enhance the load-carrying capacity of the flapper in such a way as it performs well. In fact, it works well in toilets that bear the 1.28 gallons per hour rating.

√ Highly durable

In closing, the apparatus is highly durable in that it lasts fairly long while also enduring many spates of impacts. You may thus set your eyes on it for the long haul. That is not to mention the reduced repair and maintenance costs.


√ Manufactured in a strong and reliable stature
√ Is genuine in the sense of being strong and reliable
√ Fits and pairs seamlessly with the Sterling products
√ Comes about with a float and a flapper
√ Replaces and installs the 1.28 gallons per hour rated toilets


× Restricted to the Sterling toilets alone

6. Lavelle Ind. Inc. Toilet Flapper 2004BP

If you are seeking flexibility and relative ease of installations, this is the flapper to set your eyes on. It is derived from materials that are similarly flexible and very able to conform to different circumstances of use.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Quick and easy to install

First and foremost, this item is quicker and easier to install. It does not require excessive levels of expertise to handle and is hence great for those who lack the necessary expertise. Count on it if you are a starter.

√ Long-lasting materials

Overall, it is manufactured using the longest-lasting materials. Thanks to this, the item is able to endure many periods of use and hardly distort or lose its character regardless of the impacts that may be leveled against them. Its materials are also capable of withstanding chemical damages.

√ Universal and specific fit products

All in all, the item is universal in scope thanks to the existence of the specific fit stature. In light of this, you may easily pair and work it well alongside other items that may be necessary for the proper functioning of the toilet.


√ An adjustable float aids with the controls of the flush volume
√ All the parts adjust to enable smoother controls and operations
√ Saves greatly on the use of water and the associated utility expenses
√ Its material makeup resists bacteria, chlorine, and the hard water agents of damages
√ Manufactured in line with the prevailing American standard models


× Be prepared for in-depth care and maintenance

7. Korky 100BP Ultra-High-Performance Flapper

Just if you are a professional workman, we can never recommend any better flapper than this. It is by far the most universal of all as it fits and works alongside many brands of toilets. This is not to mention its ease of installations.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Multiple settings

The flapper comprises multiple settings that let it pair and work alongside many of the existing toilet modes. You may count it to make your work easier and to also bring about more profitable ends to you.

√ Long-lasting chlorzoxazone red rubber makeup

At the core of the item is the long-lasting chlorzoxazone red rubber makeup. This gives it the strength and the endurance it needs to withstand all agents of corrosion and the premature damages that come alongside it.

√ Universal and adjustable design

When all factors are put into consideration, the gadget is packed in a universal and adjustable design. The universal nature of the design lets it pair and conform as nearly as can be too many of the prevailing plumbing gadgets.


√ Requires no tools to set up for eventual usage
√ Creates a tight seal thanks to the flexible and long-lasting rubber makeup
√ Able to stave off the damages of and by chlorine and bacteria
√ A stainless steel chain exists to up the longevity of the gadget
√ Engineered through quality workmanship and skill


× Calls for maximum expertise to comprehend and ultimately handle

8. Fluidmaster 5403 Universal Water-Saving Long Life Toilet Flapper

Get hold of this flapper and make use of it to repair and spruce up your 3-inch flush valves. The item is largely intended for the task and also brings along the added advantage of being adjustable and solid in its design.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ 3-inch universal flapper

Ranking top of its traits and specifications is a universal flapper that measures 3 inches. It fits all the existing 3-inch flush valves and also works alongside the leading models and brands of toilets we have around.

√ Kink-free chain

A kink-free chain comes in next. The chain transmits the motion power from the pipe to the toilet valve. Being kink-free, it does not bend or fold with use as many other alternatives ordinarily do. Thus, it is really reliable in the long run.

√ Injection-molded frame and float

Both the frame and the float of the flapper are injection-molded for added strength and overall reliability. They are hence stronger and more reliable for everyday use in the long term. That is not to mention that they really last longer as well.


√ Highly durable and enduring of intense impacts
√ Universal in the sense of fitting many brands and models
√ Delivers exceptionally higher levels of performances
√ A durable silicone seal tightens the joints firmly
√ Provides the excellent support required for long-term applications


× Its scope of use is limited to the 3-inch valves alone

9. Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper

For your maximum peace of mind, you want an apparatus that is similarly capable of performing the highest number of chores imaginable. We ask you to tap into this for your ghost flushing, twisting, and running toilet issues, among others.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ High-efficiency fitting

By and large, the item manages high-efficiency fitting on account of being to work hand in hand with the 1.28-3.5 gallons per hour flushing toilets. The benefit of higher returns on investments is hence yours to reap and leverage.

√ Adjustable dial flapper

An adjustable dial flapper comes in next. Its role is to conserve water in such a way as to bring down your utility expenses by a considerable margin. The adjustable nature also lets it fit many settings with absolute ease.

√ Microban material makeup

Wrapping it all up is the Microban material makeup. With this material, the flapper is capable of resisting corrosion, combating chlorine, and fighting off bacterial infestations. It works well with hard water also as it slows down corrosion.


√ Capable of adjusting for the sake of maximum flush efficiency
√ Fixes many of the common running toilet issues
√ Its rigid frame aligns with the flapper effectively per flush
√ Fights off bacterial and microbial infestations efficiently
√ Takes a relatively shorter duration of time to set up for use


× Requires many upgrades to fully operationalize

10. Fluidmaster 555CRP8 Universal PerforMAX 5-minute Toilet Flush Valve Repair Kit

Rounding up the list of the leading toilet flappers is this one, which is optimized for speed. The flapper takes a paltry 5 minutes to set up and is hence the speediest to make proper use of.

[dt_fancy_title title=”Outstanding Features and Benefits” title_size=”h3″]

√ Peel and Stick design

Unlike many other flappers, this one comes in the form of a peel-and-stick design. The design eliminates the messy glues that others have to contend with. Then again it does not demand that you remove the tank while operationalizing it.

√ Durable build

Overall, its construction exists in a durable build. This is largely made possible by the mix of the sheer physical strength coupled with exceptional chemical resistance capability. Look up to it hence to last longer and manage prolonged applications.

√ Universal scope

All of its parts, build and functionality are encapsulated in a universal scope. Through this mix of traits, the gadget is by and large capable of managing many spates of use besides fitting many areas and settings.


√ Fits many toilets whose dimensions measure 2 inches
√ Compatible with many tools, items, and toilet features
√ Adjusts appropriately to save greatly on the water use
√ May replace the largely ineffective toilet flush valves
√ Fixes the leaky, work and weary toilet flappers


× Too weak to tackle professional applications and settings

[dt_fancy_title title=”TYPES OF TOILET FLAPPERS” title_size=”h2″ title_color=”accent”]

We now expound more on the types of the best toilet flappers we have already mentioned above:

[dt_quote]Rubber Flapper with Control Dial[/dt_quote]

As the name implies, this is a kind of toilet flapper that is primarily made of rubber. It also boasts of a control dial that aids with regulating the flapper and ensuring the smooth engagements thereof. This kind is mainly handy for circumstances that vary considerably with time.

[dt_quote]Rubber Flapper with Floater[/dt_quote]

This is similarly made of rubber. Nonetheless, it contains a floater that aids with the floating of the device generally. The floater plays the role of further regulating the outflow of the water to minimize wastes and ensure smoother engagements on the whole. Thus, it conserves a lot of your utility expenses.

[dt_quote]Non-adjustable Rubber Flapper[/dt_quote]

It is a kind of rubber flapper that is firm and rigid. This kind is no longer in vogue at the moment owing to the fact that it has been overtaken by events. Chances are that you will most likely find it in older homes that are yet to be renovated and upgraded to modern standards.

[dt_quote]Adjustable rubber flappers[/dt_quote]

Adjustable rubber flappers are the exact opposite of their on-adjustable counterparts. They are mainly found in modern homes that have the latest pieces of equipment mix. These flappers are adjustable in the sense that they grant you the leeway to vary the volume of discharge appropriately.

[dt_quote]Tank Ball Flapper[/dt_quote]

From its designation, you can straight away tell that this flapper is suited for use in tanks. You sill subsequently find it patched on the toilet tanks of many modern water closets. They connect to the handle of the flushing unit in a bid to regulate the outflow of the water.

[dt_quote]Seat Disk Flapper[/dt_quote]

Seat disk flappers are the oldest flushing units that are still in vogue at the moment. They comprise a large disk that is attached to a reservoir that is full of water. Many new homes shy away from it though due to its bulky and convoluted nature.

[dt_fancy_title title=”FREQUENTLY ASKED QUESTIONS (FAQs)” title_size=”h2″ title_color=”accent”]

We now ask and answer some of the leading questions that are consistently asked about the best toilet flapper :

[dt_quote]Q1. How often should toilet flappers be replaced?[/dt_quote]

A. Preferably, after every three to five years. With use, the flapper depreciates both in value and strength. In the course of that, it tends to be weaker and less effective insofar as the discharge of its duties is concerned. That is only remedied by fixing a new flapper in its stead.

[dt_quote]Q2. How much does it cost to replace a toilet fill valve?[/dt_quote]

A. You will have to part with around $50-$150. The exact value is however dependent on several factors. Among these are the local rates, the brand that makes the flapper, the size of the flapper, and the volume of the water that it is designed and intended to control.

[dt_quote]Q3. Why do toilet flappers go bad?[/dt_quote]

A. The rubber that adorns the flapper tends to develop cracks with use. This way, it deteriorates to the extent of not being able to discharge its duty as need be. Though this is an eventuality that has to happen no matter what, pouring hot water, improper plumbing and the use of harsh detergents accelerate it.

[dt_quote]Q4. What is Ghost Flushing?[/dt_quote]

A. “Ghost flushing” refers to a circumstance in which your toilet flushes itself on its own. It mainly arises when the water seeps out from the tank and drains into the bowl slowly and steadily. This in turn is caused by leaks in the system that inevitably allows water to seep out unnecessarily.

[dt_quote]Q5. Can you put Vaseline on a toilet flapper?[/dt_quote]

A. YES, for the purpose of softening the rubber. When the rubber becomes too hard, it is rendered inflexible to the extent of not being able to guard against the seepage of the water as smooth as need be. Vaseline has the characteristic capability of softening the rubber to restore its flexibility.

[dt_quote]Q6. How do you stop a toilet flapper from leaking?[/dt_quote]

A. The following steps and strategies may help to stop the flapper from leaking out:

  • Turn off the water and then empty the tank wholly
  • Replacement of the tank ball in the event that it is worn out or cracked
  • Wholesome replacement of the flapper to counter any cracks or complete wearing out
[dt_quote]Q7. Why does my toilet randomly run for a few seconds?[/dt_quote]

A. This could signify a broken flapper. The flapper is usually supposed to drop down and seal off the tank after a sufficient volume of water has seeped out. Any cracks or decays will often give room for the water to seep out and trickle periodically. This may require instant remedying to reverse the situation.

[dt_quote]Q8. Why does my toilet keep trickling?[/dt_quote]

A. A number of factors may be responsible for this menace. First is the existence of leakage on the flushing unit or the pipe that leads to the bowl. Then again the valve that is supposed to regulate the flow of the water may be faulty such that it is incapable of discharging its task properly.

[dt_quote]Q9. How do you fix a toilet that runs randomly?[/dt_quote]

A. Follow the steps below to fix the toilet that runs randomly:

  • Lift the lid of the toilet away from the tank
  • Increase the length of the lift chain if possible
  • Fix a new float ball in the stead of the existing one that may be leaking
  • Re-calibrate the float height
  • Clear the seat of the valve to eliminate any sediments or bur deposits
[dt_quote]Q10. How much does a flapper valve maintenance cost?[/dt_quote]

A. There is no fixed cost of maintaining a flapper valve. It all depends on the area you are in, the extent of the damage, and the expertise of the repairman you hire for the job. Even though you may repair these items, you are highly advised to purchase new ones as it is cheaper that way.

[dt_fancy_title title=”Final verdict” title_size=”h2″ title_color=”accent”]

Our long and detailed look into the best toilet flappers come to end there. We are now pretty confident that you have what it takes to make an informed decision. How about you now proceeding with haste to implement the inspiration you have generously received from us? What about notifying others of these items as well?

To find the best purchasing deal, you have to start immediately as holding on for too long may only serve to delay the benefits that come by. Do not forget to bargain so that you may receive the best deals for the job. Then again remember to compare the prices of the many dealers so that you may leverage the best products.

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Samuel Carter

This is Samuel Carter. I have been online product reviewing for the last 7 years and owns many product samples from different companies. I love online product reviewing and reviewing is my hobby. I know, choosing a product is very difficult for newbies and that is why I have created this blog to help the newbies. I think might be useful for you. Thanks - Carter
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