Best Toilets That Don’t Clog

Everyone wants a clean and flawless bathroom. A clogged toilet is perhaps one of the trickiest things to handle in a home. It can be utterly disgusting when you have to deal with toilet clogs every now and then. A smarter move is to invest in toilets that don’t clog to permanently deal with this unpleasant situation.

Clog-free toilets have been proven to be effective in maintaining bathrooms clean. Fortunately, you can choose a model that suits your budget and bathroom design preferences. We have done thorough research on your behalf and selected the best no-clog toilets you can find on the market.

These toilets are not only efficient in clearing solid waste, but they also come with outstanding features. Furthermore, you still have the liberty to choose between one-piece and two-piece designs depending on your preference.


BrandProduct NameEditor's PickPriceRating
TOTO Drake Two-Piece Elongated 1.28 GPF Universal Height Toilet with CEFIONTECTBest Overall$4.4
American Standard 2887218.020 2887.218.020 Toilet, Normal Height, WhiteBest Runner-Up$4.4
WoodBridge T-0019 One Piece Non-Clogging Toilet With Dual FlushBest One-Piece Design$$4.6
Kohler K-3998-0 Wellworth Elongated 1.28 gpf ToiletBest Two-Piece Design$$4.2
Swiss Madison Well Made Forever SM-1T254 St. Tropez One Piece ToiletBest Budget Pick$4.3
*Ratings courtesy of Amazon at the time of publication and can change!

What Features Make a Toilet Clog-free?

The best no-clog toilets are designed with a large flush valve and a large trapway. A proper clog-free toilet should have at least a 3-inch or higher flush valve and a wider trap way measuring 2-3/8-inches or larger. A larger flush valve ensures that the flush is powerful enough while the wider trapway provides adequate space for clearing large masses. Here are the key features that make a toilet clog-free:

Faster Water Refill Time

When looking for toilets that don’t clog, timing your toilet’s water refilling is essential. Toilets that are constantly clogging will normally refill very slowly after a flush, and the water will not be able to reach the tank’s recommended depth. If your toilet tank refills in three minutes or more, it may result in clogs. It should take between 1.5 and 2 minutes to ensure your toilet is flushing properly and remains clog-free.

Powerful Flushing System and Extra Large Valve

Check the product description to know what flushing system the toilet uses. Dual flushing works with different water volumes to enable a clog-free experience. It is crucial that your toilet has a large flash valve for a powerful flush; the trapway must be at least three inches wide to support the function and keep the toilet functioning smoothly.

Non-stick Toilet Bowl

Modern toilets are made from ceramics or a combination of silica and clay. The material that makes up your toilet bowl can cause your toilet to clog easily. Also, using a trapway covered with non-stick smooth enamel makes it easy for waste to flow into the sewer and prevents toilet clogs.

Top 10 No-Clog Toilets Reviewed

There are several brands and models of toilets that don’t clog, and it’s easy to get lost and end up with the wrong product. Thankfully, we have combed through the market to bring you great products that meet the basic requirements in terms of functionality, price, and design.

1: Best Overall: TOTO Drake Two-Piece Elongated 1.28 GPF Universal Height Toilet with CEFIONTECT

The Japanese brand TOTO offers its one-piece toilet system with a no-clog capability. Toto products are well known for their well-thought design and durability. The TOTO Drake two-piece toilet comes with a G-max flushing system, ensuring a no-clogging experience.

Many users adore TOTO Drake toilet’s ergonomic and sleek design that suits many modern bathroom layouts. You can choose from a variety of classic colors, including colonial or cotton white, bone, or beige. The height is well thought-through and suits the needs of most average people.

Moreover, this model features low water consumption, taking up only 1.28 gallons per flush. To ensure a no-clog experience, the toilet system features a wide flush valve, a special flushing system, and a computer-designed trap way.

The special outer coverage makes it seamless to clean and maintain. It also comes with a comfortable toilet seat with a wax ring to prevent slamming.

What we like
  • Great ergonomic design
  • Smooth, glossy surface for easy cleaning
  • Low water consumption
  • Easy to install
  • Non-slamming seat
What we don’t like
  • No known issues

2: Best Runner-Up: American Standard 2887218.020 2887.218.020 Toilet, Normal Height, White

American Standard is another top brand that manufactures high-quality toilet systems. It offers high performing toilet models at competitive prices.

The American Standard White 2887218 is known not to have any clogging issues, thanks to its large flush valve that ensures a powerful flush and 2 3/8 inches fully-glazed trap way that easily channels away waste.

With these features, it is simply impossible to experience clogs. The toilet is also quiet enough and guarantees economic water consumption – it only consumes 0.92/1.28 GPF for a decent flush.

It is a two-piece toilet design with an elongated bowl of a convenient height to ensure comfortable sitting. With its Special Everclean coverage, cleaning and maintaining the toilet is seamless since dirt or bacteria don’t stick to the surface. Although the design is simple, it fits merely any contemporary bathroom.

What we like
  • Perfect height and elongated bowl for comfortable sitting
  • Quiet but powerful flushing
  • Everclean surface to prevent spots and ensure easy cleaning
  • Comes with a 10-year guarantee
What we don’t like
  • The seat seems weak and may need replacement

3: Best One-Piece Design: Woodbridge T-0019 Dual Flush Elongated No Clog Toilet

If you’re looking for a luxurious and comfortable no clog toilet, then the Woodbridge T-0019 one-piece toilet could be your best pick. This toilet system looks sleek and lovely, but it is also surprisingly efficient in performance.

It boasts a siphon flushing design that provides quiet and powerful flushing to ensure no clogging.

What we like
  • Compact, stylish design to make your bathroom space luxurious
  • Comfort height and elongated bowl
  • Easy installation process
  • Utilizes just 1.0/1.6 GPF for liquid and solid waste, respectively
  • Its skirted design ensures easy cleaning
  • The manufacturer offers a 5-year limited warranty
What we don’t like
  • Some users don’t like the tilted cistern lid

4: Best Two-Piece Design: Kohler K-3998-0 Wellworth Elongated 1.28 gpf Toilet

The Kohler K-3998-0 Wellworth Elongated 1.28 gpf Toilet is another quality and durable no-clog toilet with a two-piece design. This simple but stylish toilet system will transform the look of your bathroom in a second. This particular unit features a right-hand chrome trip lever, something you should note before making your buy decision.

This two-piece toilet doesn’t pose any clogging issues due to its powerful and effective class five flushing mechanism. It delivers outstanding power that sweeps off large masses in a single flush. Besides, it only uses 1.28 GPF.

The 3-inch flush valve is one of the largest in the industry and helps to deliver a powerful flush that clears waste effectively, leaving the toilet looking clean.

In terms of comfort, the toilet has an elongated bowl and a chair height for comfortable sitting down and standing up. It is a great pick if you have an elderly person in the house or a person with mobility issues.

What we like
  • Comfortable height with an elongated design
  • Easy to install
  • Powerful flush system
What we don’t like
  • Comes without a seat and tank bolts

5: Best Budget: Swiss Madison Well Made Forever SM-1T254 St. Tropez One Piece Toilet

The SM-1T254 Ivy Toilet is another non-clogging toilet with an efficient dual flushing mechanism. It boasts a sturdy design and is extremely efficient. The dual flush mechanism makes it shrug off many top competitors on the market.

The highly sought-after dual flush mechanism functions on 0.8/1.28 GPF range, which meets WaterSense Standards and EPA guidelines.

The eco-friendly toilet system flaunts a simple tank with a sophisticated design to give extra comfort to the user. It comes with a comfortable height and an elongated bowl for added versatility. This Swiss Madison toilet is also designed with a soft-closing seat mechanism to prevent slamming altogether.

6: Best Luxurious Design: WoodBridge T-0001 One Piece Non-Clogging Toilet with Dual Flush

WoodBridge T-0001 One Piece Toilet is a compact toilet suitable for small bathroom spaces where every inch counts. Despite its compact size, it offers great comfort and experience just like full-sized toilets.

The design has a luxurious look with white ceramic, which improves the interior of any bathroom. Since it’s a one-piece toilet, cleaning and maintenance are much easier. It features a soft-close system for a quieter operation.

The dual-flush mechanism ensures water-saving as you can choose between 1.0 and 1.6 gallons per flush.

What we like
  • Luxurious modern design
  • Ecologically friendly
  • Efficient performance
  • Quiet but powerful flush
  • Soft-close system
  • Easy cleaning and maintenance
What we don’t like
  • Only comes with 5 years warranty
  • Not suited for children

7: Best Elongated Bowl Design: TOTO CST744SG#01 Drake 2-Piece Toilet

The TOTO CST744SG#01 Drake 2-Piece Toilet is a non-clogging toilet model under the two-piece category. It is equipped with a G-Max flushing system that operates quietly but prevents clogs. With a 3-inch-wide valve, a siphon, and a large trap way, wastes will be cleaned efficiently with a single flush.

This model offers low water consumption with only 1.6 gallons per flush, which helps you save up to 10.000 gallons annually when compared to other toilets. The elongated bowl with a wider sitting area ensures comfort.

This design can fit almost any modern bathroom as it comes with a glossy cotton white finish. The Cefiontect glaze coverage adds a luxurious appearance and prevents staining. The toilet will keep looking clean and shiny for several years.

What we like
  • Comfortable design with an elongated bowl and tank set
  • The Cefiontect glaze ensures easy cleaning of the surface
  • Easy installation
  • Quiet yet powerful flush
What we don’t like
  • Does not include a toilet seat

8: Best for Water Saving: American Standard Cadet 3 Elongated Flowise Two-Piece No Clog Toilet

The American Standard Cadet 3 toilet is extremely efficient and powerful. Its state-of-the-art design and low water consumption make it one of the most preferred toilets in modern homes.

This two-piece no clog toilet boasts a skirted bowl and a single flush mechanism. As a product from a top brand, it delivers excellent performance and value for money.

It sports a fully glazed 2 1/8″ trap way and an EverClean surface. Its siphon mechanism jets water into the bowl to ensure a complete flush each time. The Cadet 3 uses 20% less water than conventional toilets without sacrificing performance and efficiency.

What we like
  • Excellent water-saving mechanism
  • An elongated design for comfortable sitting
  • Comes with a five-year warranty
  • Includes a slow-close seat and lid for a quite closure
  • The EverClean surface ensures a long-lasting cleanliness
  • Flaunts a PowerWash rim to ensure a complete flush at all times
  • WaterSense Certified and uses only 1.28 gallons per flush
  • The convenient height allows for top-level comfort
  • Skirted design with an easy installation process
What we don’t like
  • The minimalistic design may be too small for taller adults
  • Fragile EverClean surface

9: Best for Small Bathrooms: WoodBridge B0500 T-0031: Small One-Piece Non-Clogging Toilet

WoodBridge B0500 T-0031 toilet is another no clog toilet designed to fit small bathrooms. It has a modern and elegant look and comes with everything you need to complete the installation, including a comfortable toilet seat.

It has a soft-close mechanism and stainless steel hinges that make it durable and stylish. The siphon design ensures a super quiet but powerful flushing operation without clogs or leaks.

What we like
  • Elegant, luxurious design
  • A quiet but powerful flushing
  • Stainless steel seat hinges
  • It is small and suitable for kids’ bathrooms too
  • All-in-one package
What we don’t like
  • The instruction manual can be confusing for some users

10: Best for ADA Compliance: Kohler K-3493-0 Highline Classic Pressure Elongated No Clog Toilet

The Kohler K-3493-0 Highline Classic Toilet is a leader in its own right. The two-piece K-3493-0 toilet is among the finest toilets in the range of Pressure Lite toilets. It has excellent flush engineering that ensures no clogging.

The Highline Pressure Lite elongated toilet uses just 1.6 gallons of water to ensure a thorough and complete flush. The toilet system is both powerful and affordable. Besides, it requires very low maintenance due to its fewer moving parts.

The toilet comes in a standard height and features a left-hand polished chrome drip lever, making it ADA-compliant. The beautiful toilet design will blend nicely with any modern bathroom setup.

What we like
  • Pressure-assist flushing mechanism to ensure no clogs
  • A Vitreous China enamel coating for easy cleaning and maintenance
  • An elongated bowl for comfortable sitting
  • Polished chrome left-trip lever that makes it ADA compliant
  • Its standard height ensures a comfortable experience during usage
  • Maximizes water efficiency (1.6 gallons per flush)
  • Comes with a 1-year limited warranty
  • The installation is simple and straightforward
What we don’t like
  • Lacks WaterSense Certification
  • Doesn’t include a toilet seat and supply line

11: Swiss Madison SM-1T803BQ

Whether you’re upgrading to a comfort height model or just remodeling your bathroom, the Swiss Madison SM-1T803BQ is among the best comfort height models to pick. It features a modern and sleek design that looks great in any bathroom and complements any design element. 

It features a dual flush system with a high-efficient gravity of 1.28 or 0.8 gallons per flush. The toilet has an elongated shape and measures 27 x 16.45 x 23.45 inches, a no-clog size especially suited for short individuals. The shape, measurement, and design offer maximum comfort. 

The Swiss Madison SM-1T803BQ also has a slow and soft closed toilet seat that provides maximum comfort and can withstand much weight. The seat hardly gets stained. The toilet is very simple to install as the side holes provide easy access to its floor bolts. The manufacturer offers you technical support and a one-year limited warranty.

Overall, the Swiss Madison SM-1T803BQ is among the best no-clog toilets below 300 dollars available on the market. It’s easy to clean, thanks to its skirted trapway. And the soft closing seat prevents it from slamming down and waking up the entire house when using it at night. 


  • Dimensions: 26.45 x 15 x 31
  • Color options: Matte black, glossy white
  • Installation method: Floor mounted
  • Material: Ceramic
  • Dual flush technology (0.8 half flush, 1.28 full flush) 
What we like
  • Dual flush system
  • You get a one-year limited warranty
  • No-clog design for comfort
  • Suitable for large, medium, and small size bathroom
What we don’t like
  • Needs proper maintenance

12: Galba Dual Flush Small Toilet 

If you’re looking to spend extra money to get a high-quality, no-clog toilet, the Galba Dual Flush Toilet is the ideal choice for you. 

At only 15 inches wide and 24½ inches long, the Galba can fit perfectly into any small water closet. This one-piece toilet with a modern flair is crafted from durable molded Vitreous China. It also has a self-cleaning glaze that covers every area exposed to waste and water. The finish prevents the growth of mildew, bacteria, and mold. The smooth surface reduces the chances of wastes sticking to the bowl sides, making it easy to clean. 

In terms of performance, the Galba Dual Flush model doesn’t disappoint. It uses about 1.6 gallons (full flush). Despite its small water tank, this toilet features a highly efficient vortex flushing system. 

While the seat and cover are prone to wriggling, the manufacturer made it easy to remove and install in no time. 


  • Vortex Vormax flush
  • Dimensions: 24.5 x 15 x 27
  • Material: Plastic and ceramic 
  • Color options: White
  • Installation Method: Floor mounted
What we like
  • Powerful dual flush buttons
  • Modern one-piece
  • Elongated seat and bowl for comfort
  • Compact size
  • Quick-release seat
What we don’t like
  • Toilet seat hardware can get loose.

13: Horow HWMT-8733 Small Dual Flush Toilet

The Horow HWMT-8733 Toilet is ideal for those looking for an affordable toilet that’s easy to install. The toilet is very simple to install, and it conforms to the US standard installation practices. While it has a large trap way that complements its dual-flush system, every other thing is similar to other toilets. 

The toilet’s lipless self-closing seat cover, chrome-covered buttons, and discreet bolt covers help to complement the bathroom decor. The Horow HWMT-8733 is easy to maintain and fully glazed. The modern one-piece unit doesn’t have any stubborn spots where bacteria can hide. The dual flush system also eliminates waste effectively. It uses 1.6 GPF for a full flush and 1.28 GPF for a half flush.


  • Material: Ceramic
  • Dimensions: 25 x 13.5 x 28.5 inches
  • Color Options: White
  • Installation Method: Floor mounted 
  • Sleek one-piece design
What we like
  • Efficient dual flush technology
  • 3-year warranty (flushing mechanism), 5-year warranty (finish)
  • Soft-close seat
  • Easy to install
  • Compact size
What we don’t like
  • The plastic seat can’t be replaced with products from other brands.

The Buying Guide for No-Clog Toilets

The annoying process of plunging out clogs from your toilet is something you don’t want to experience on a regular basis. Investing in the best non-clogging toilet can help you avoid this embarrassing scenario every few days.

But first, let’s look at some common causes of toilet clogs and how you can avoid them in the first place.

Why Do My Toilets Keep Clogging?

Here are the most common causes of clogs in toilet systems:

1: Low-flow First-generation Toilets

If you still have a toilet system designed in the mid-1990s, it cannot clear the internal trap and drain effectively. These low-flow toilets clog easily and are better off replaced.

If you don’t have adequate money yet to install a new toilet unit, you can minimize clogs by reducing toilet paper use or using highly biodegradable bamboo toilet paper.

Cleaning a toilet bowl

2: Blocked Toilet Traps

A toilet trap is a U-shaped pipe that always remains filled with water to prevent foul odors in the sewer line from seeping into the house.

The U-shaped bend in the trap often makes clogging easy. To avoid frequent clogs, be careful with toilet tissue usage and avoid flushing hard objects that can settle in the trap and cause clogs.

3: Flushing Foreign Stuff

Your toilet is designed to flush human waste and soft toilet paper. Flushing foreign objects that are harder than human waste will cause clogging. Things like hard paper, diapers, sanitary pads, and wet wipes are all non-flushable and can clog your toilet.

4: Toilet Paper Usage

If you stuff toilet paper down the u-trap, it will most likely cause a clog. Avoid this by folding used tissue paper instead of rolling it into a ball. You should also reduce the use of toilet paper to a bare minimum.

How Choose the Best Toilets That Don’t Clog

Now, before you pick the best clog-free toilet system, you need to learn about the features to look for before buying one. Understanding the specifications of the toilet unit will ensure that you end up with a perfect porcelain throne. Here are the key features that distinguish exceptional no-clog toilets from regular toilets:

1: Materials

Most toilets are made of ceramic material that is typically a mixture of silica, clay, and a fluxing agent. The difference often lies in the color, shade, and type of finish that covers the toilet. This last aspect will define the general look of the toilet, as well as how easy it is to clean and maintain. How smooth and sleek the outer cover is will also determine how easy waste moves down the toilet to prevent clogs.

Stylish toilet design

2: Flushing Mechanism

Toilets feature different flushing mechanisms depending on the manufacturer. The most common flushing types used on modern no-clog toilets are dual flush and tank-less systems.

A dual flush system allows you to choose what amount of water to use. You will use a light flush for liquids and a heavier flush for solid waste, allowing you to conserve water. With a tank-less system, the cleaning typically depends on the flush pressure since water does not refill the tank.

Flush systems can also be siphonic or wash-down. With a siphonic toilet system, the cleaning process is triggered by the water from the tank. When you press the flush button, the water pushes wastes down and evacuates the bowl content.

A wash-down mechanism, on the other hand, washes down the content of the bowl without evacuating the bowl. Such designs come with a deep bowl with a small water area to ensure that the content is gravitated out of the bowl.

More importantly, choose a toilet system with large flush valves and trapway outlets to guarantee a powerful flush with no clogs.

3: Bowl Types

Although this feature has nothing to do with clogging, choosing the right bowl type will ensure comfort. It’s often a matter of taste and preference. The two most common bowl types are round or elongated.

Round models are more space-saving but can be less comfortable for some users. Elongated bowls are considered more comfortable, but they typically require more floor space. Some manufacturers offer toilets with square bowls, but they are currently not in big demand. You may also consider a low-profile model if you have space constraints in your bathroom.

Square toilet bowl design

4: Water Consumption

Studies indicate that almost 30% of water is consumed by residential toilets across the US. To help conserve water, it’s important to choose toilet models that are certified by EPA WaterSense and consume less than 1.6 gallons per flush.

5: Water Refill Time

This feature is vital for any anti-clog toilet. If you pick a model with a tank, ensure that it can fill up fast after a flush. This is particularly important if the toilet is used by multiple people flushing within short intervals.

6: Installation Requirements

Some toilets are simple to install as a DIY project while others require a professional approach. Always consider the complexity of the installation process if you’re planning to install the unit on your own. Alternatively, hire a professional plumber to save you the hassle.

Plumbing wretches

7: Manufacturer Warranty

Like every other household fixture, toilets can fail at the least expected time. You can escape many problems with your toilet by going for one with an extended warranty period. The least period for a manufacturer’s warranty is one year, but a good quality toilet should come with a five-year warranty or more.

8: One-piece or Two-piece?

Last but not least, you can choose between one-piece and two-piece toilet designs. One-piece toilets are becoming increasingly popular as they appear sleek and seamless, which makes them fit any modern bathroom design. They are constructed with fewer joints and seams, so they don’t collect much dirt or moisture.

Two-piece options are still available on the market. Although they have some downsides, such as difficulty in cleaning due to joint crevices, they are often cheaper (depending on the brand) and simpler to install.

Wrap Up!

As you’ve probably noticed, there are hundreds of toilets on the market claiming to be clog-free. Having gone through our buyer’s guide, picking the best no-clog toilet shouldn’t be difficult.

Just ensure that your toilet of choice is water-efficient, easy to install and clean, and features a powerful flush mechanism. All the models we have featured here not only have an efficient flushing system but are also stylish and comfortable to sit on.


1: What toilet do plumbers recommend?

Most plumbers recommend the Toto Eco Ultramax toilet since it’s easy to install and use. It also offers durability and longevity.

The American Standard Champion 4 is often highly recommended as the best no clog toilet. It takes just 1.6 GPF water per flush to clear the waste and clean the bowl.

2: What does it mean when your toilet keeps clogging?

If your toilet is frequently clogging up, it’s a sign that something is not right. The problem may have to do with your plumbing system, your toilet, or the objects you flush down there. It could also be as a result of a clogged toilet trap, a blocked toilet vent, or a clogged sewer line.

3: What toilet has the largest Trapway?

The Champion® 4 Flushing System features the largest siphonic trapway with a diameter of 2-3/8″ and the largest flush valve with a diameter of 4″. This toilet system is virtually clog-free, so you’ll never need to plunge it again. It has many other innovative features that make it perfect for busy or large households.

4: Which is better Kohler or American Standard?

If you’re concerned about your bathroom’s aesthetics, it is safe to say that Kohler has an edge over American Standard. Kohler boasts the best designs and comfort, and their toilet models are easy to clean. However, American Standard features the best flushing systems, and their toilet products are much more affordable.

5. What does plug free toilet mean?

Many Kohler toilet models can remove up to two pounds of waste in a single flush. Plug-free toilets provide precision water delivery, ensuring no clogs.

6: Does bleach help unclog a toilet?

Yes, bleach can help clear minor clogs. Simply pour 2 to 3 cups of bleach into the toilet bowl, wait for 10 minutes to allow the bleach to work on the clog, and flush the toilet.

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