Best Tankless Toilet Reviews and Buying Guide 2020

If you want to have the ultimate experience of poshness, futuristic style and high-tech features in your bathroom, the importance of setting a tankless toilet has no alternative.

It’s fashionable, it’s unique and the best part is it makes your life easier.

You don’t have to go manual if you spend a bit of your fortune and buy an automated tankless toilet. Most of them come with features for which you don’t even have to use your hands.

Here are Recommended Best 3 Tankless Toilets on The Market

  1. KOHLER K-5401
  2. Toto Neorest 550H
  3. Duravit 2226090092

With all these features around, why will you use your old toilets while you can have tomorrow's comfort right at your doors today?

Take a look at these amazing toilets for once and ask yourself if you really want to spend your days being old-fashioned.

Presenting you the top 3 Tankless Toilets in the market, from which you can grab the best tankless toilet for yourself.

Without further ado, let’s see what we have for you.

The products below are the ones that are running hot in the market right now. Give the reviews a thorough read and decide which one suits you best.

1. KOHLER K-5401

If you think you’re not going to have a problem spending a bit of money, the Kohler K-5401 is the masterpiece you should grab. With advanced features and technology, this toilet definitely will impress you.

KOHLER K-5401-0

When you’ll take a look at its appearance, you’ll see it comes with a compact and sleek design. Its compactness makes sure it can blend in anywhere even in limited space.

The toilet boasts an eye-catching combination as its balanced curves teamed up with streamlined one-piece skirt bowl design. This modern compact toilet comes with integrated cleaning, for which, you won’t replace it with anything else.

At night, your jaw will drop as the toilet will give you a futuristic look with its LED lighting. Not only the LED lighting will serve as a night light but also it will offer a premium look that most customers crave for.

You don’t have to use water manually to clean yourself, with the Kohler K-5401 around. Its automated spray system will effectively clean your bottom.  Using 78 fine nozzles, the front wash cleanses you with air-infused water.

For effective cleaning, get yourself cleansed and massaged by the pulsating wash. If you need to clean a broad area, the spiral spray will take care of that effectively.  After each use, the sterilized water will disinfect the nozzle to save it from germs.

After cleaning yourself, get the service of warm air dryer function and heated seat so that the water goes off of your skin. The heating system comes with adjustable temperature settings, allowing you to adjust the amount of heat you want.

Save water and your water bill both, with the Kohler K-5401. It uses only 1.28 gallons of water per flush for powerful flushing. As the toilet set comes with a dual flushing system, you can use the other button to wipe the liquid wastes using 0.8 gallons of water.

As for extras, the set comes with a touch-screen remote.

Highlighted Features

  • It comes with a compact shape to fit limited space. The looks and design make the product a premium one.
  • It has got automated nozzles that cleanse you effectively.
  • To make sure the water goes off of your skin, the toilet comes with an automated warm dryer system.
  • The toilet uses up to only 1.28 gallons of water per flush, which saves water and water bill at the same time.

2. Toto Neorest 550H

The Toto Neorest 550 H is packed with technology from top to bottom. Let’s start with the siphon jet flushing system that gives you the ultimate flushing experience with ultra-high efficiency.


Replace the old toilets that used to use up above 3 gallons of water per flush. As a result, the water bill would cost you a fortune. Get yourself the Toto Neorest 550H instead. The Cyclone Siphon Jet flushing system not only gives you an amazingly powerful flushing experience but also saves you water and money.

It comes with a dual flush system that offers you 1 gallon of water per flush for cleaning the solid wastes. To clean the liquid waste, you’ll have the option to use only 0.8 gallons of water per flush.

Feel any problem cleansing yourself? Get the real taste of technology with the Toto Neorest 550H. The toilet features the automatic washlet that comes with three modes: the front, rear and soft. Clean your front and rear conveniently without you doing anything. The soft mode gives you a gentle wash.

You know what the SanaGloss feature is, right? It’s Toto’s well-known glaze feature which kills the debris, molds and mildews and make sure the toilet is germ-free.

Toto toilet usually uses the SanaGloss ceramic glaze with its flagship products and the really expensive ones. But this time, you’re getting the SanaGloss ceramic glaze with the Toto Neorest 550H at a reasonable price compared to others.

Ease up with the Toto Neorest 550H as you don’t have to use your hands to use the flush. The Toto Neorest 550H has an automated flushing system which takes the whole control.

Besides, after each flush, the Toto Neorest 550H clouds up the bowl with electrolyzed water. This makes sure you don’t feel the need for harsh cleaning chemicals.

Some people prefer just the quality over the design, while others prefer design over quality. But winners are those who get the best of both. Enough chit-chat with the quality, if you’re a person who doesn’t want to compromise the looks of your toilet, get your hands on the Toto Neorest 550H.

The toilet offers a solid sleek finish with a futuristic outlook. It comes with a very compact design which ensures it fits anywhere even in little space. Trust me, it won’t give you the thought that your bathroom has something oversized.

Highlighted Features

  • Cyclone Siphon Jet's flushing system gives you the ultra-high flushing experience. It also saves you water and water bill by using just up to 1 gallon of water per flush.
  • The toilet comes with an automated washlet system that offers 3 modes for effective washing.
  • The SanaGloss ceramic glaze protects the toilet from molds and mildew, debris, etc. by destroying them.
  • Has got Automated Flushing System which uses electrolyzed water to make sure you don’t need to use any harsh chemicals.

3. Duravit 2226090092

If you want a tankless toilet that cleans all the solid waste effectively, yet comes at a cheap price, the Duravit 2226090092 is the one you need. Judging by its look, it has got a very sleek design with a compact shape.

best tankless toilet

You can easily fit this toilet anywhere, even if space is narrow. The toilet blends in perfectly while giving the bathroom a posh look. The toilet holds a very premium look, unlike the standard ones. You can understand the taste of technology as you take a look at it.

Old toilets can give you a hard time as you sit on them. The toilet bowls come with uncomfortable shapes and height. As a result, it is normal for you to remain unrelaxed.

Well, say goodbye to your uncomfortable days as now you have the Duravit 2226090092 around. This toilet offers a very comfortable elongated bowl made just for your comfort. To make sure you get enough space to sit, the bowl is extended to 1-½” more.

Unlike its competitors, the toilet has just got the right height for you, allowing you to keep your knees and joints relaxed all the time. From now on, even your granny can use it as the toilet is suitable for people with physical limitations.

You can save a lot of water with the new Duravit 2226090092. Its dual flush system gives you the option to use 1.6 gallons of water for powerful flush to clean all the solid wastes. When it comes to cleaning liquid wastes, you can have the option to use 0.8 gallons of water.  Less water consumption results in fewer water bills at the end of the month.

The best products offer the longest warranty offer. For example, if a product has a 2-year warranty, you can be quite sure it won’t cause any problem within 2 years. If it did, the manufacturers wouldn’t be so confident to give a 2-year warranty, right?

Well, the Duravit manufacturers gave a 5-year warranty to the new Duravit 2226090092. This not only gives you the chance to have your problems fixed for free but also ensures you that the product can withstand any problem within 5 years.

Highlighted Features

  • The toilet comes with a sleek design that gives it a premium look.
  • Duravit 2226090092 comes with an elongated bowl that has a 1-½” inch extension, allowing you to sit comfortably on the toilet seat.
  • The toilet uses up to 1.6 gallons of water, so you can save water and money at the end of the month.
  • It comes with a 5-year warranty which allows you to have your problem fixed without spending a penny.

How to Buy the Best Tankless Toilet?

If you don’t know what you should look for before buying a tankless toilet, you can end up buying the wrong product. To make sure that doesn’t happen, take a look at the things you should consider before buying a tankless toilet.

Flushing System

High-quality toilets have the best flushing performance. Always look for the toilet that cleans solid wastes in one go. Make sure you don’t end up buying a toilet that needs multiple flushing to clean the solid wastes.

Dual-flushing toilets can be expensive, but they save a lot of water and lessens your water bill. The ones with the single flush system won’t give you this option.

Another feature you should cross-check if the flushing system is automated or not. Automated flushing systems will make your work easier. Some automated flushing system does not come with air fresheners, try to avoid those and get the ones that offer the air freshener.

Floor Mount VS Wall Mount

When it comes to tankless toilets, you’ll find mainly two categories: wall mounted and floor mounted. Try to compare the weight and design of the toilet when it comes to choosing from both.

That being said, it is wise to go for a wall-mounted toilet, if you prefer a clean, neat and aesthetic design with a clear floor. Besides, you’ll find wall-mounted toilets very easy to clean, unlike the floor-mounted ones.

Advanced Features

The more cash you’re going to spend, the more advanced feature you’re going to get. Why will you keep yourself away from tasting the futuristic technology? Get yourself the toilets packed with advanced features like UV-light, automated spray, remote control options.

You’ll also get the option to have automated toilet lids which close and opens up all by itself. Spending a bit of fortune is worth it.


There are toilets which will give you a hard time cleaning, while there are others which are easier to clean. This depends on the design of the unit as well as the manufacturing material the toilet comes with.

My recommendation to you would be the toilets which come with SanaGloss technology. They destroy bacteria, debris, molds and mildews and keeps your toilet safe and germ-free. Thus, you won’t have to take the hassle to struggle with it while cleaning.

How to Install Tankless Toilet Easily?

You’ll find tankless toilets easier to install compared to a two-piece toilet. Basically, when it comes to installing, there are two types of toilets you should know about: the floor-mount toilet or the wall-mount toilet.

Make sure the toilet is completely matched to the water source. You’ll have the unit secured and accessible to all users if you fix the toilet to the floor or wall.  However, unlike floor-mounted units, you need to put some special care with the wall-hung toilets for weight considerations.

You have to keep in your mind that people of all ages and body shape will use your toilet. So, when you’re going to plan the attachment of a wall-mounted toilet, it is always a must for you to consider the structural forces of the wall as well as the bolts holding the toilet, along with the manufacturer’s specifications (weight limits).

That being said, you’ll find it very easy steps to install a tankless toilet. You can follow these basic steps to make your work easier.

  1. Make sure you’ve turned your water supply before removing the old unit.
  2. Remove the old unit and clean the area it was fixed in.
  3. Make sure the supply and waste plumbing are all set.
  4. Now it is time for you to connect the supply and waste plumbing.
  5. When you’re done with everything above, it’s time to mount the toilet and install the seat.
  6. If you have an electronic unit, you should attach the seat to a power supply.

For the complete guide and steps, you can take the advice from an expert anytime.

What’s Now?

Well, that was pretty much it about the right tankless toilet.

I personally think all of these toilets are superb with their mind-blowing performances.

If you have gone through this article attentively, it’s now time for you to decide which toilet suits you the best.

Joe Carrow

Product reviewer & passionate blogger. Beside writing for this blog, I spend my time crafting research based contents for HuffingtonPost, Lifehacker & Forbes!

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