7 Best No Clog Toilet Reviews | Guarantee won’t Clog

No experience on how to choose the best no-clog toilet? And want to go through a simple process to find the best one. Then you’re in the right place.

Do you know that 99 percent of people fail to select the right product due to a lack of knowledge? The best non-clogging toilets have a longer flush valve (more than 3″) and a higher trapway (more than 2.5″).

According to Sofideal survey 76 % American deals with clogs every time. These clogs generate toilet rings ( how to keep a toilet from getting rings ), bacteria and causing UTI infections, look unhygienic toilets. So, you must need a high-quality no clog toilet.

In our modern house, having toilets that don’t clog usually saves you lots of time and minimizes the plumber visits.

Nobody doesn’t want to spend a thousand dollars on a bathroom, and that will end up with a bad experience.

If you’re tired of dealing with clogged toilets and want to find the best no-clog toilet, look no further than our tried-and-true list.

I am a professional mentor here solely to assist you in selecting the right product based on your bathroom space, design, and, most importantly, budget-friendly products that do not clog after heavy use.

Another thing to consider is that if you are inexperienced with this field, it can be challenging to select the right products because there are so many on the market.

I understand your pain, and I have gone through 1000 reviews and experiments, after which we shortlisted 10 products, then eliminated three products due to minor issues, and finally chose the world’s best seven hassle-free toilets.

Now you can see how difficult the job was for these results. We also went through some statistical analysis, which we mentioned before the conclusion.

So, keep reading, and I’ll clear your doubts and guarantee that at the end, you’ll choose the right one that will change your bathroom experience.

If you’re in a hurry, here’s my Best No Clog Toilet

WOODBRIDGE T-0019 Cotton White toilet is the best all-rounder on my list because you get all the advanced features in this budget-friendly product.

Top Pick
7 Best No Clog Toilet Reviews | Guarantee won't Clog

WOODBRIDGE T-0019 Toilet

  • Dimensions: 31 x 18 x 28 inches
  • One-piece toilet
  • Materials: Porcelain
  • Elongated bowl
  • Siphon flushing
  • Floor mounted
  • Rough-in 12″
  • One year limited warranty

Our Verdict

It’s a dual flush toilet you can use 1.0 GPF flush for urinal and 1.6 for heavy waste down because of the two options it’s going to save you lots of bucks and give you a clog-free experience. This model has a high mapping score and excellent flush power, making it a top-rated no-clog toilet.

However, are you want excited to explore all advanced features and their advantages and disadvantages then read the information that we are sharing depending on our experience and products knowledge.

Before going to all products details I want to share some basic things that what is no clog toilet, how to choose them. If you are familiar with them then straight to jump our product section.

What is toilet clogging & how to know your toilet Clogged?

When your toilet begins to drain slowly. It means that after flushing the toilet, the toilet bowl began to fill with water, and the waste remained in the toilet after draining.

However, if you do not flush your toilet, you will not know if it is clogged or not.

So the question is, how do you know? right

1.After flushing the water stayed in the bowl for a long time.
2.Water starts to gurgle up in either shower or bath drain after you flush the toilet.
3.After flushing overflowing from the bowl may happen.

It’s not a big deal to unclog a toilet, but it takes time and can result in toilet rings, which is why a non-clogging toilet is a great option for your home.

How to protect toilet from clogging

There is more than one cause of toilet clogging. We’ve listed a few of them.

  • Avoid extra use of toilet paper
  • Don’t use a toilet like a dustbin
  • Manual cleaning need occasionally
  • Close the lid after use.

If you are puzzled about a wide range of features, we have compiled a list of essential factors to examine before purchasing a no-clog toilet.

Factors must be considered before purchasing a no-clog toilet

Toilet played a vital role in our house. When you searched for no-clog toilets, you must be looking for the best performing toilet.

Check the lists-

Mapping Score

The mapping score represents the gram of waste removed by a single flush. The highest mapping score indicates that the toilet has a more powerful flush that prevents clogging.

Like Woodbridge, T-0019 has eliminated 1000 grams of waste per flush.


Trapway height is also important because a taller trapway provides a more powerful flush than a standard trapway. Toilets with a 3″ trapway provide a more powerful flush.

Flushing systems

Two primary flushing technology are present in the market. The first one is gravity flush, and the second one is pressure assist flush.

If you want a powerful flush while also saving water, dual flush toilets are the way to go. In this scenario, these are the best options.

Large flush valves are also crucial for a forceful flush that also minimize jamming.

One or two-piece toilet:

Both toilets have a strong flush system, but you have to decide according to your comfort.

In comparison to two-piece toilets, one-piece toilets are best for any bathroom because of their sleek design, ease of cleaning, and leak-proofing features.

Two-piece toilets are cheaper compare to the one-piece toilet.

Round or elongated:

An elongated bowl is more comfortable than a round one and has a minimum corner; that’s why it’s easy to clean.

Round toilets are perfect for a small bathroom because of the space.


I love the warranty section because it eliminates lots of headaches. Always go with at least one year warranty. Some high-profile brands also provide a five-year warranty.

Before ordering any item, reconfirm the warranty section because it may change according to the model.

There are some other factors also presents that are not major things for a nonclogging toilet. 

But you have to check it and confirm it according to your need such as design, ease of installation or not, toilet seat and other components are included or not, verify the height is comfortable or not, and so on.

Okay, let’s jump to the exciting parts that are our products.

WOODBRIDGE T-0019 No Clog Toilet

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Dimensions: 31 x 18 x 28 inches
  • One-piece toilet
  • Materials: Porcelain
  • Elongated bowl
  • Siphon flushing
  • Floor mounted
  • Rough-in 12″
  • One year limited warranty
  • Rating: 5/5

Woodbridge is one of the industry’s fastest-growing brands. It comes in a variety of designs that can help you improve the look of your bathroom.

I love the clean, sleek look. The design is suitable for any bathroom, and I am confident that no one will object to it.

Woodbridge T-0019 is one of the best one-piece elongated luxurious toilets.

The bowl is made of long-lasting porcelain and contains few spores, ensuring hygiene.

It is one of the best non-clogging toilets because it has an advanced siphon jet flushing Technology with an utterly glazed trapway that eliminates the clogging.

The most exciting thing about this toilet is the mapping score.

If you don’t know, the mapping score refers to the number of grams of waste eliminated per flush.

The toilet mapping score, in this case, is 1000 grams. It’s strong enough to be ingested in a single flush.

That’s why Woodbridge T0019 is one of the best toilets that doesn’t clog.

As I informed you, it’s a one-piece toilet means the toilet tank and bowl are integrated. That’s why it’s leakproof and the maintenance charge is also minimum compare to the two-piece toilet.

The elongated bowl is completely comfortable and simple to clean, and there is no need to be concerned about height. It is ideal for anyone. It’s also ideal if your family includes a disabled member.

The model is not only WaterSense certified but also UPC and CSA certified.

It’s a dual flush toilet that uses 1.0 to 1.6 gallons of water per flush. You can use it according to your needs to save extra water, which is environmentally friendly and cost-effective.

All of the components required for your toilets during installation are included with the toilet.

The package includes a pre-installed soft closing toilet seat, a wax ring, and bolts. A hand wrench is also included for tightening the bolts during installation.

It’s also simple to install if you follow the manual instructions.


  • Clogg free
  • Leakproof
  • No maintenance
  • Soft close seat included
  • Powerful silent flush
  • Easy to clean


  • Heavyweight
  • Quite difficult to install
  • Not perfect for children

My Opinion

The main focus of Woodbridge is to provide luxurious products with high-quality materials. That’s why it’s a growing brand. All are the advanced systems are included in this toilet.

I love the one more features; there are no corners in the toilet, that’s why can’t hold dust. It’s a fantastic feature. Looks like your toilet is always clean. There are no dirty plastic holes.
This model has a high mapping score and excellent flush power, making it a top-rated no-clog toilet.

TOTO CST744SL Drake Non-clogging Toilet

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Rating:4.6/5
  • Two-piece Toilet
  • Single flush toilet
  • Elongated bowl
  • G-max flushing technology
  • 12″ Rough-in
  • WaterSense certified
  • one year limited warranty

We all know that our best non-clogging toilet list is incomplete without TOTO.

Because of its high quality, Toto is one of the most popular brands in this industry. They understand the importance of a customer and will never irritate a customer with their services.

Among them, Toto Drake is one of our favorite toilets that is never clogged.

G-MAX is Toto’s patented flushing technology. The GMAX siphon jet has a higher flow rate, pumping water into the bowl faster and ejecting it with greater force.

Because of the larger flushing valve (3″) and designed wide range glazed trapway, it is a powerful flush that removes heavy waste in one flush. That is why the toilet never gets clogged.

The model has an elongated bowl that is comfortable for all users, and it also meets ADA criteria. So, nothing worry about height.

It also saves water using 1.6 gallons of water per flush.

The main downside is that it does not come with a toilet seat. Still, you can upgrade to a bidet toilet seat for a more luxurious experience.

The toilet is suitable for any bathroom because it comes in three different colors that enhance the beauty of your washroom.


  • Powerful gravity flush
  • Easy to install
  • Silent flush
  • Upgraded toilet seat option
  • Comfortable design
  • Lightweight
  • Smooth surface easy to clean


  • Toilet seat not included

My Opinion

Toto Drake is an excellent choice if you want to install high-quality products on a tight budget.
They have patented a powerful flush that removes waste in a single flush. In conclusion, I believe this is one of the best Toto no-clog toilets.

Kohler K-3493-96 Highline no clog toilet

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Rating: 4.8/5
  • Two-piece toilet
  • Elongated bowl
  • Biscuit in color
  • Pressure assist single flush toilet
  • 12″ rough-in
  • using 1.4 GPF
  • Floor mounted
  • one year limited warranty

Kohler is another well-known brand in this industry.

Kohler introduces a new advanced technology called pressure-assist flushing when other brands are producing no-clog products based on gravity flushing.

The Kohler Highline product is made of long-lasting vitreous china.

Because of the elongated bowl and standard chair height, it’s a great option for spending quality time in the bathroom with a comfort zone.

It complies with ADA guidelines, so don’t be concerned about a disabled person. The seat height is another interesting feature; when compared to other brands, it is slightly taller.

The pressure-assisted flushing system creates a strong siphon that ensures no clogs.

It will save you 1000 dollars on your water bill because the model uses only 1.4 gallons of water, ideal for any single flush toilet.

All are top quality, but you must spend extra money on installation because the components are not included. There is no toilet seat, no wax ring, and no supply line. It must be purchased separately.


  • Strong flush
  • Comfortable
  • Water savings
  • Easy to install by bolts


  • No seat included
  • No wax ring and supply line
  • A little bit of noisy flush

My Opinion

Highline is an excellent choice for Kohler toilets that do not clog.
There are no complaints about the quality of this product.

If you don’t have any budget issues, this is a good option, in my opinion.

It’s a long-lasting product, but the company should include the other components at this price.

I believe the price is a little high in comparison to other brands.

WOODBRIDGE T-0001 no clog toilet

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Rating: 4.6/5
  • Size: ( 28.5 x 14.5 x 27.5 ) inches
  • Materials: Ceramic
  • One-piece toilet
  • Floor mounted
  • Rough-in: 12 inch
  • Siphon jet dual flush
  • 1year limited warranty

Woodbridge has another best non-clogging toilet that is T-0001.

The model is identical to the Woodbridge T-0019. The only major difference is that T-0001 is made of ceramic materials, whereas T-0019 is made of porcelain materials.

Porcelain is more durable than ceramic, but ceramic has a more glossy appearance than porcelain.

Aside from that, the sizes of the two models differ. T-0019 is 31 x 18 x 28 inches in size, while T-0001 is 28.5 x 14.5 x 27.5 inches in size.

Different dimensions of the products help to choose the right one according to your washroom space.

These are the only differences. Otherwise, all are the same features that are present in T-0019.


  • Siphon jet powerful flush
  • Clog free
  • Leak-free
  • Soft closing seat included
  • WaterSense certified
  • ADA complaint
  • No bands, no corner, easy to clean


  • Costly
  • Difficult to carry because of weight

My Opinion

Woodbridge always provides quality products. Nothing to worry about that. If you are ceramic lovers and searching for small dimensions toilet from Woodbridge, then this is the perfect one compare to Woodbridge T-0019.
If price is not an issue and wants a quality product for a small bathroom, go with Woodbridge T-0001.

American Standard 2462.016.020 Cadet no clog toilet

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Rating:4.4/5
  • Two-piece Toilet
  • Elongated bowl
  • pressure assist siphon jet flush
  • Floor mounted
  • Rough-in 12″
  • Ever clean glazer surface
  • One year warranty

American standard is well known for the best flush that eliminates the clogging experience.

American standards are always cheaper compare to Toto and Kohler. Give a class product at a low price.

The model American Standard 2462.016.020 Cadet comes with vitreous china materials.

The elongated bowl and standard height give you a comfortable experience.

Because of the flushing system, the model is ideal for heavy use. It includes a pressure-assist valve and a powerful flushing mechanism with a siphon jet. Remove all waste with a single flush.

It’s a water-saving technology because using 1.6-gallon water per flush and ever clean glazed surface minimizes manual cleaning.

One flush is good enough to look pretty. There is no need for manual cleaning for up to 3 to 4 months.

The glazed surface also removes odor-causing bacteria, providing you with a clean toilet experience.

The toilet meets ADA guidelines. So nothing to worry about height. Also excellent for disabled people.


  • Fully glazed trapway
  • Super glazed surface
  • Water-saving flush
  • Siphon jet and pressure-assist flush
  • Comfortable height
  • Lightweight toilet


  • Toilet seat not included
  • Installation components not included
  • Little noisy flush

My Opinion

American standard is a well-known brand and famous for flushing power. This is a budget-friendly product. It is a single flush toilet using more water compare to a dual flush toilet.

Pressure assists toilets in having fewer clogging chances, and American standards always provide a satisfactory product.
It is available in stores.

TOTO MS854114ELG#01 Eco Ultra Max Toilet

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Rating: 4.3/5
  • One-piece toilet
  • Elongated bowl
  • Vitreous china
  • Cotton white in color
  • Gravity flush toilet
  • WaterSense certified
  • Floor mounted
  • 12″ rough-in
  • One year limited warranty

TOTO MS854114ELG#01 Eco Ultra Max Toilet is another well-known no-clog toilet. It comes with vitreous china, which is long-lasting and ideal for long-term use.

The main feature of the toilet is that it has a 3″ flush valve and a larger trapway than a standard toilet, which produces a powerful flush.

We all know that one-piece toilets have an intense look and are easy to fit in any bathroom.

The toilet is leak-free because there are no hidden gaps, and the bowl and tank are integrated.

There is also no opportunity to grow bacteria that protect your family.

The main selling point is the E-max flushing technology, which removes all waste in a single flush. The larger flush valve does an excellent job.

This is the primary reason we included this toilet on our list.

The toilet is ideal for any hotel room or bathroom due to its height. It’s slightly taller than the standard one.

So, if you have a taller family member, this one is ideal for your home.

If you have a shorter person in your family, I recommend that you avoid this one.

The oval-shaped elongated bowl is ideal for both comfort and cleaning.

The model has a CEFIONTECT finish and can clean your toilet with a single flush. There is no dirt visible after flushing. Consequently, you don’t have to wash regularly manually.

Most importantly, the product is WaterSense certified and meets ADA, CALGreen, and CEC criteria.


  • No clogging issues
  • Leakage free
  • Easy to install and clean
  • Maintaining hygiene


  • Toilet seats not carried
  • Mounting kit (waxless) not added
  • Not for short people.

My Opinion

The model is intended for taller people. It’s ideal for any office, especially the men’s restroom. Our pro tip is to use a wax-free seal rather than a wax ring during installation. That’s perfect for you.

If you are looking for taller toilets that don’t clog, you can check TOTO Eco Ultra Max nonclogging toilets. It’s a trustworthy product.

Kohler 3810-0 Santa Rosa Toilet nonclogging commode

7 Best No Clog Toilet Reviews | Guarantee won't Clog


  • Rating:4.7/5
  • One-piece toilet
  • Vitreous china materials
  • Elongated bowl
  • Gravity flush technology
  • rough-in 12″
  • 5 different colors
  • one year limited warranty

The Kohler Santa Rosa toilet has a beautiful design and a bowl made of vitreous china, which is also durable and long-lasting.

Kohler understands the market’s competition and provides products with a positive marketing strategy. Please wait. I will explain it.

It is one piece toilet. The bowl and tank are joined together, so don’t worry about leakage. There is no blend and corner; because of that, it’s super easy to clean.

Kohler Santa Rosa is the best non-clogging toilet because it has a gravity flush mechanism. The single flush is sufficient, and the reason for this is the best trapway, which delivers a mighty siphon while flushing.

One cool feature is an aqua piston canister that circulates water in the bowl at a 360-degree angle. As a result, the bowl is completely cleaned in a single flush.

The durable canister design exposes 90% less seal material than a 3″ flapper for leak-free function.

The model has an elongated bowl but takes up the same amount of space as the round toilet. It’s a perfect no-clog toilet for a small bathroom.

The toilet meets ADA guidelines. So the height is perfect for all users.

Nowadays the big issues are water. The toilet comes with water-saving technology. They are using only 1.28 gallons of water per flush.

It’s a single flush toilet that has a left-handed lever for flushing.

I can say it’s an eco-friendly non-clogging toilet within budget.

Now, let’s talk about Kohlar’s marketing strategy. The toilets come with a toilet seat because they understand the market pain. Still, after reviewing it, we discovered that it is of poor quality and does not close softly.

Read more- Best Kohler Compact toilets for small bathrooms.


  • Powerful single flush
  • Clogg free
  • Leak-free
  • Water savings
  • Toilet seat included
  • WaterSense certified


  • Toilet seat is cheap in quality
  • Starting seconds of flush noisy

My Opinion

Kohler gives all are the necessary components with this toilet. You need a long water flush valve line. Before installing, check it. Otherwise, buy it separately before installing.

Check it if you are compatible with these things, but we guarantee that the toilet will not clog.

So, these are our top seven lists that are dominating the market.

If you are puzzled by a vast number of features, we have compiled a list of critical factors as well as some statistics and summaries that should assist you in purchasing a no-clog toilet.

Quick Stats on Toilets That Never Clog

Do you know after selecting our top three products, we create a pool where 217 peoples are votes? In a poll, we add three products 

  • Woodbridge T-0019
  • Toto CST744SL Drake Toilet
  • Kohler K-3493-96 Highline 

The results are below:

best no clog toilet stats

The winner, in this case, is Toto CST744SL Drake Toilet, which received the most votes for non-clogging toilet, followed by Kohler K-3493-96 Highline and Woodbridge T-0019 Toilet.

We put Woodbridge first because it is the one that I personally use and have never had any issues with.

Summary on toilets that don’t clog

Hey, I can understand your pain. I know it’s challenging to pick the best one from the top seven lists. That’s why I am here to support you and assist you in selecting the right one according to your needs.

The top three list is based on our experience, other users’ reviews, and a group of plumber recommendations.

If you want an excellent mapping score unit with the best features, we suggest WOODBRIDGE T-0019 one-piece toilet. The best dual silent flush toilets that never clog.

If you prefer two-piece toilets and want a low-cost single flush toilet, we recommend the Kohler K-3493-96. I guarantee that the Highline no-clog toilet will improve your bathroom experience.

Are you a Toto lover and want the best toilets that don’t clog? TOTO CST744SL Drake Toilet is a brand that will never let you down.

I had a positive experience with Woodbridge, and I adore this brand for the reasons stated above. It’s now your turn. Prefer a brand that you like and trust and stick with it without hesitation.

Our suggestions on toilets that don’t clog

If you ask me who the king is! In my perspective, the performance. Yes, features are mattering, but performance is even more important than features.

Hence, we prepare the best no-clog toilet lists based on their performance.

Our advice is to go through the customer reviews and manually check whatever you choose before purchasing.

Never trust a toilet that has no warranty. If you are frustrated with clogging and have tried everything, but nothing works, try some simple DIY solutions. I believe that our simple DIY solutions will help you to minimize your clogging experience.

So, what are your thoughts on the top no-clog toilet lists? I believe, now you have a clear idea about toilets that won’t clog, Right?

Be happy and bring a gift for your sweet home.


What Qualifies a Toilet as a ‘Strong Flusher’?

The main six things that make a flush powerful
Developed trapway
Longer flush valve
360-degree canister flush
Pressure assist flush
Dual flush
Siphon jet flushing mechanism
SIPHONTECT and ceramic glazing

What toilet is best for not clogging?

According to our research, the best flushing power is provided by Woodbridge T-0019 and TOTO CST744SL Drake. Many brands are available in the market, several of which offer the best nonclogging toilet. However, these two have a monopoly on the market.

What toilets do plumbers recommend?

Plumbers mostly prefer budget-friendly and easy-to-install products. Most of them suggest Toto eco ultra max and Woodbridge T-0019 toilets.

Which toilet has the most potent flush?

When it comes to the most powerful flush, American Standard is the first thing that comes to mind. The brand is well-known for this purpose.

The model we suggest is American Standard 2462.016.020 Cadet Pressure Assisted Toilet, and the second one is Woodbridge T-0019 toilets.

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