tankless toilet types

Top 10 Best Tankless Toilets for Modern Bathrooms: Review in 2023

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There can be many reasons why a person gets on the internet and searches for the best tankless toilets. the primary reason however has always been the scarcity of space.

Tankless toilets do not have a tank attached to them separately. At first glance, they look like they consist of the toilet bowl only. The bowl can be round elongated or even square-shaped. In recent years, D-shaped toilets have also emerged in the market.

However, that does not mean that you can go ahead and buy toilet bowls only. There is a big difference between tankless toilets and toilets that comes with a separate tank. Tankless toilets do not need a separate bidet or tank for flushing purposes. It is a complete unit in itself.

People still get confused sometimes though. To guide you through this complex way of buying one, I have gathered the best tankless toilets here. Go through the product review and pick your bets.

List of the Best Tankless Toilets in the Market

The list contains toilets that come with an integrated tank, bidet toilets, portable toilets, and wall-mounted toilets. Wall-hanging toilets have proven to be a great alternative to tankless toilets because of their design and concealed in-wall tanks. It is mounted on the wall, giving a lot of space beneath the toilet. Thus keeping the cleaning and moping of the bathroom an easy task.

And if you have the budget and a penchant for advanced technology, electronic bidets can be the best solution for you. Don’t worry! I have covered the best of each category in this article.

1. Saniflo 023 Sanicompact Self-Contained Toilet – Top Pick

saniflo 023 sanicompact

The first on the list of best tankless toilets is Saniflo 023 Sanicompact. If you are concerned about bad odor while buying a tankless toilet, you can relieve yourself by buying Saniflo 023 Sanicompact.

Saniflo Sanicompact is a unique type of dual flush toilet. It has a heavy flush capacity of 0.28 GPF and a light flush capacity of 1 GPF. However, instead of flushing waste straight into the drainage system, it employs macerating and a pump to remove waste. This makes it an excellent alternative for installing over toilets in locations where a traditional flush toilet is impracticable.

Furthermore, in situations where a regular toilet would be impracticable, a waste pipe from a sink may be connected to the toilet, making it a perfect alternative for building a half bath. Its pump can pump up to 9 feet in height and 100 feet horizontally using a 1″ pipe.

When the flush button is pressed, the toilet fills with a predetermined amount of water, which is then drawn through the macerating blade with the waste and discharged via a 1″ waste pipe. So you don’t have to be concerned about both space and fragrance.


  • The system allows connecting with a sink;
  • Uses one gallon for every flush in particular;
  • The seat has a smart modern design for the most extreme solace;
  • Encourages vertical siphoning up to a height of nine feet and a plane distance of up to 100 feet;
  • Fitted with strong pivots, making it sturdy.


  • A bit expensive

2. Duravit Wall-Mounted Starck 3 Tankless Toilet- Runner Up

Duravit 2227090092 Toilet Bowl Wall-Mounted Starck 3

The first purpose of buying a tankless toilet is to save space. As you must already know round toilets are the best for this rather than elongated ones. But if you need comfort (which is quite an imperative factor in my opinion when it comes to toilets) then elongated toilets take the crown.

Duravit Starck 3 is a D-shaped toilet that combines the best of both worlds. The Duravit wall-mounted toilet is a simple yet comfortable toilet that can be installed in your bathroom. The longer, broader bowl form of the extended toilet may be more pleasant to sit on.

It may also be simpler to use for males or children, and it provides a bigger area for those with mobility challenges to get on and off. This makes the Duravit 2227090092 Wall Mounted Toilet an excellent choice for your tiny bathroom.

Elongated designs offer fewer crevices around the underside of the bowl, making it simpler to clean. The longer design also makes it easier to look into the bowl’s front interior, which can help maintain it clean. The entire design is also environmentally beneficial, with superfluous water consumption minimized.

Customers who wish to add a beautiful touch to their bathroom will like the Duravit wall-mounted toilet. The disadvantage of the Duravit tankless toilet is that it must be cleaned on a regular basis. This is perfect for stay-at-home parents who have the leisure to clean it on a daily basis.


  • Perfect for small bathrooms
  • Eco friendly
  • Scratch-resistant exterior
  • Lightweight and easier to clean


  • Have to buy a separate seat

3. KOHLER K-6299-0 Veil Wall-Hung Elongated Toilet

KOHLER 6299-0 Veil Intelligent Wall-Hung Toilet

If you want a stylish and elegant tankless toilet then, look for KOHLER K-6299-0 VEIL. It is a one-piece toilet and also one of the best wall-mounted toilets available on the market. This tankless toilet features a concealed in-wall tank and carrier system that gives the toilet an intuitive and minimalistic.

Also, it saves a lot of space under the toilet system, keeping cleaning really easy. It is an ideal wall-mounted toilet to equip in your small bathroom that keeps your place hygienic and clean all day long.

Its typical elongated bowl offers comfortable seating for the person. Moreover, KOHLER K-6299-0 is designed with a grip-tight Q3 seat, granting a comfortable seating position to the house members. Meanwhile, the vitreous china white material of the tankless toilet is durable and lasts for a long time.

Furthermore, these tankless toilets save water and money by removing solid waste in a single flush and keeping the bowl clean at all times. The low cost of this KOHLER K-6299-0 Veil makes it an excellent purchase for your little bathroom. The main disadvantage is that cleaning may need two flushes.


  • Compact size;
  • Concealed tank design;
  • Upscale design solution;
  • Concealed mounting hardware;


  • Requires a back wall in particular.

4. Bio Bidet IB835 Bidet Toilet System

The Bio Bidet IB835 is a good choice for the ones who don’t need anything profligate but a good tankless bidet toilet that will take care of business well without spending a good deal. The unit has a secure location and a constant skirted design with modern finishes that give it a startlingly flawless, current look. Rather than a tank protruding from the rear, the reservoir is integrated inside the device.

Everything is flushed into the septic tank thanks to the programmed and strong flushing system. The most notable feature, and what sets this toilet apart from others, is that it provides a full bidet purging experience.

It includes a twin cleansing wand with constant warm water for posterior and feminine washing. The wand is not rigid, and there is a warm air dryer that is excellent and actually dries your back in a reasonable amount of time. As a result, you will witness the full cleaning process as well as the drying process, as seen in some other top models.

In general, this Bio Bidet model includes all you would want from a coordinated bidet combination system.


  • Aerated bubble through infusion wash
  • Movable spout position and water temperature
  • Air Deodorizer work
  • Simple installation for anyone with experience using tools
  • Responsive controller


  • Doesn’t have a pre-mist work and a night-light choice

5. Dometic 300 Series Standard Height Toilet

Dometic 300 Series Standard Height Toilet

If you need a tankless toilet for a bunch of people, then. Dometic 300 Series Standard Height Toilet can be a good choice. However, this is not technically a tankless toilet but more of a portable campsite commode.

Dometic 300 series gravity-flush toilets have a powerful triple jet action that entirely eliminates waste, as well as an innovative drop away from the ball and valve system. These full-size residential-style toilets have an easy-to-use foot pedal and an adjustable water level.

The ultra-low flush technology consumes as little as 1 pint/.5 liter of water per flush. They are perfect for people who are going on a trip in an RV. Dometic 300 is made of tough plastic-infused materials instead of porcelain so you do not have to worry about its durability.

It is backed by Dometic’s two-year guarantee with Protection Plus. And while it is a portable commode, you can put it to daily use by connecting it to drain lines.


  • Safe and durable
  • Fast and powerful flush
  • The comfort of a standard toilet


  • Installation can be a bit tricky

6. Toto Neorest 700H

toto neorest 700h

Another bidet toilet serves the purpose of a tankless toilet. Since this is a tankless toilet, thus all of the superpowers are contained in the bowl, including the electric pump that performs all the heavy lifting when flushing.

However, the high-capacity electric pump is only half of the tale. Every detail, from the bowl surface to the water channels, is designed to enhance the cleaning power for full waste elimination.

The CeFIONtect glaze on the glazed bowl surface is one of the most important components in waste disposal. It prevents trash from sticking to the bowl’s surface, no matter how small. As a result, water can easily carry them away. Consequently, just 1.0 gallons of water are required to eliminate solid waste.

The waterways, which are internal channels in the bowl, come next. A powerful stream of water will spiral down from the rim, sweeping everything in its path all the way to the bowl outlet. On the other hand, the one at the bottom pushes everything through the tramway and into the drain pipe.

This Tornado Flushing System is also found in some of TOTO’s top high-end gravity flush toilets. It is a one-of-a-kind and industry-leading siphonic flushing mechanism. It lacks the traditional rim holes that run the length of the bowl rim. As a result, dirt and bacteria have nowhere to hide, resulting in a more sanitary toilet.


  • Water conservative
  • Quality  materials
  • Automatic flush
  • Easy to clean


  • Expensive

7. WOODBRIDGE B-0960S B0960S Smart Bidet

This isn’t the most inexpensive tankless toilet on the list. But it may have the most innovative design and functions. As a result, it’s great for homeowners wishing to upgrade or replace their bathrooms’ toilets.

Woodbridge B0960S is a one-piece skirted toilet with sophisticated amenities such as a heated seat. During the winter, this seat will keep you warm and comfortable. Moreover, the automatic flushing mechanism of this bidet toilet is another clever feature. It starts working as soon as you get up.

The flush comes first, followed by the self-cleaning bidet. During power outages, you can also rely on the manual flush button. The feminine wash function of the toilet will be appreciated by female users. This toilet also has a pulsating wash and posterior wash functions built in.

Apart from these, you’ll also appreciate the toilet’s strong air dryer. It helps persons with mobility problems because it eliminates the need for toilet paper. With this toilet function, you can stay clean, dry, and rejuvenated.

Meanwhile, the B-0960S also has an automated deodorizer that uses air filters to keep the air clean. The night light illuminates the toilet at night to make it more appealing. You can also use a handheld or wall-mounted touchscreen remote with it. This can make using the restroom even easier and more convenient.


  • Skirted design for easy cleaning
  • Comes with a heated seat
  • Self-cleaning bidet
  • Feminine wash function
  • Automated deodorizer


  • Costly

8. Swiss Madison Ivy Model

swiss madison ivy model

If you want one of the best tankless toilets that are also pretty to look at, then the Swiss Madison Well Made Forever Ivy SM-WT450 is for you. The lower unit of these back outlet toilets is fitted to the wall with no base. This makes the room seem far more spacious.

Not only that but the whole tank system is also fitted inside the wall. That means there is just a seat on the show. And now, if you’re worried about how you’re going to flush out the garbage? Then, don’t worry. You can access the flush from a panel that sits flat against the wall, about half a meter above the toilet.

These tankless toilets are also easy to clean due to their simple design and shape. Swiss Madison Well Made Forever Ivy SM-WT450 has a soft-close toilet lid. So, you don’t have to bend down to close it off. You can close the lid with just one touch and avoid slamming it.

We can say it is a space-saving toilet that gives your bathroom more room and makes it seem more spacious. Additionally, this affordable dual-flush toilet comes with everything you would need for installation, i.e., all the nuts and bolts comes along with it.


  • Water conservative
  • Mounts on the wall to save space
  • Easy to install and clean
  • Affordable


  • Only 1-year warranty

9. Toto Aquia Wall-Hung Tankless Toilet

This one on our list of the best tankless toilets is a masterpiece of elegance and modernity. It consumes minimum space, and leaves the rest for legroom. And to add more to the decor, it brings out the best fixtures.

Moreover, it operates on a dual-flush system which ensures that water consumption remains as low as 1.6 gallons per flush. The SanaGloss Ceramic Glaze Technology of this wall-mounted toilet prevents the growth of bacteria, mildew, and mold from sticking to the inner surface of the bowl.

Consequently, consuming less amount of water for cleaning purposes and making the toilet hygienic to use. The universal height of these wall-hung toilets is the main highlight that allows you to add it to your small spaced bathroom.

One drawback, however, is that you may need two flushes at once to clean the bowl. Overall, it is a perfect wall-mounted tankless toilet for your small bathroom.


  • Space-saving design
  • Skirted bowl for easy cleaning
  • Dual-flush mechanism
  • Elegant look


  • Trap water doesn’t rise very high

10. American Standard Madera Tankless Toilet

In the category of best tankless toilets, American Standard Madera also earns a place. American Standard Madera Tankless Toilet passes the EPA WaterSense criterion and is equipped with a seat. The surface is white and features an EverClean covering, which allows it to stay clean for longer periods of time without stains or foul odors.

The tank is not connected to the bowl. You can, however, install a powerful siphon that will readily clean the bowl. The recommended flushing pressure ranges from 25 to 80 psi. Inside the toilet, there is a condensation funnel. The set comprises two bolt caps.

One drawback of the American Standard Madera is that it is not ADA compliant. It thus can not be a suitable choice for hospitals or public restrooms.


  • Weighs only 37 pounds
  • Open-front seat for males
  • EverClean covering


  • Not ADA compliant
  • Needs to be connected to the main pipes

Bottom Line

You are now aware of the best tankless toilets. I have identified the top products for you, ranging from Saniflo and TOTO to Kohler and Woodbridge. Most of these brands have solidified their positions in the toilet market. If you choose any of these excellent commercial toilets, you will receive incredible value for your money.

The best tankless toilet saves not just space, but also money. It lacks a flushing tank or cistern behind it. When you look at it, all you see is a bowl. When the bowl is curved differently, you may not see the tank that comes with the toilet.

These toilets are almost never tankless. They just include the tank into the model or attach it separately. Hope the list assists you in making a buying decision. If I missed out on any candidate for the best tankless toilets list, do mention it in the comments!

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