American Standard 2034314.222 Champion 4 One-Piece Toilet with Toilet Seat, Elongated Front, Chair Height, Linen, 1.6 gpf

American Standard Champion-4 One-Piece Elongated Toilet



WOODBRIDGEE Modern Elongated One piece Toilet Dual flush 1.0/1.6 GPF,with Soft Closing Seat,1000 Gram MaP Flushing Score,Chrome Button B0750-C, White

WOODBRIDGE T-0019, Dual Flush Elongated One Piece Toilet



TOTO MS854114ELG#01 Eco Ultramax ADA Elongated One-Piece Toilet with Sanagloss, Cotton White, 16.62' x 28.18' x 29.12'

Toto Eco UltraMax One-Piece Elongated

One piece toilets have always been a people’s favorite for it’s easy to clean mechanism and sleek design.

One piece toilets are easier to clean, maintain, and use than two-piece toilets. With the changing lifestyle of people towards smart and sustainable living, this bathroom essential’s popularity has been growing.

Even though this product is easy to find, buying the right one-piece toilet for yourself is a lot harder. It is almost impossible to find the right one for you amongst a sea of options.

Which is why we came up with the best one piece toilet reviews to help you find the perfect one for you.

So, if you’re someone who’s in search of the best one piece toilet that is both effective and efficient, then keep on reading. We have a detailed buyers guide at the end of the reviews for your perusal. We can even help you get a free quote for your toilet installation from a top rated local plumber in your area.

Let’s get into it.

Top 9 Best One Piece Toilet Reviews




American Standard 2034314.222 Champion 4 One-Piece Toilet with Toilet Seat, Elongated Front, Chair Height, Linen, 1.6 gpf

American Standard Champion-4 One-Piece Elongated Toilet

When it comes to efficiency and effectiveness on a budget this toilet isn’t one to disappoint. The American standard one piece toilet reviews are mostly on a positive note because of its basic yet essential features.

Starting off with its external features, this toilet features a comfort height that anyone in the family can use comfortably. It also has an elongated bowl that will not only give you comfort but will also give you that extra space that men and women both need.

It has a siphon jet system flush that uses 1.6 gallons of water per flush. With a wide-open and fully glazed 2-3/8-inch trapway that is the largest in the industry. Which is able to move a 40 percent larger mass than a 2-1/8-inch trap way and an almost 70 percent larger mass than a standard 2-inch trapway. Making the flush both effective and efficient.

On top of that, it also comes with an ever clean surface that will avoid the inhibition and growth of odor and stain-causing germs, bacteria, or any other microorganism. With it you don’t need to worry about stubborn stains or stinky smell and cleaning will be a lot easier for you.

This product comes with a slow close toilet seat to prevent the seat slamming for a quieter, more peaceful home. So you don’t need to run an errand to your closest plumbing and hardware store to buy a suitable one. It is the best 1.6 GPF toilet in an affordable budget.

Product Features:

  • Weighs 119 pounds
  • Comes in two colors
  • Made of porcelain
  • Elongated shaped bowl
  • Floor mounted installation
  • Has a 1.6 GPF flush
  • Soft close seat

What We Liked:

  • Features comfort height
  • Features siphon jet
  • Comfortable to use
  • Efficient and effective
  • Value for money
  • Good for budget buyers

What We Didn’t Like:

  • Well, nothing really!




WOODBRIDGEE Modern Elongated One piece Toilet Dual flush 1.0/1.6 GPF,with Soft Closing Seat,1000 Gram MaP Flushing Score,Chrome Button B0750-C, White

WOODBRIDGE T-0019, Dual Flush Elongated One Piece Toilet

This next product from Woodbridge is all about serving a luxurious and ultimate comfort experience. This modern toilet will not only make the user experience better but will also accentuate the overall look of your bathroom.

Starting off these best quality Woodbridge toilets serve you a clean and sleek look. That goes well with any theme be it modern, craftsman, traditional, etc. Externally it has no corners or grooves that make it easier for you to clean and maintain it. Its soft close seat won’t make any noise and will also avoid cracks from any collision.

It also has a very powerful and quite siphon flushing system that will clean everything within one flush. Its dual flush allows you to choose from two different water power of 1/1.6 GPF and an average of 1.28 GPF. The flush is both effective and efficient.

The credibility of this toilet is also evitable from its certifications. These toilets are US & Canada UPC & CSA certified products. Ones that are Highly-efficient, WaterSense Certified toilets – meet or exceed ANSI Z124. 1 & ANSI A112-19. 7

Product Features:

  • Weighs 152 pounds
  • Watersense certified
  • Made up of porcelain
  • Elongated shaped bowl
  • Floor mounted installation
  • Features remote control

What We Liked:

  • Features a modern design
  • Easy to clean
  • Effective and efficient toilet
  • Features comfort height
  • Good quality seat
  • Controlled temperature

What We Didn’t Like:

  • Not easy to install




TOTO MS854114ELG#01 Eco Ultramax ADA Elongated One-Piece Toilet with Sanagloss, Cotton White, 16.62' x 28.18' x 29.12'

TOTO Eco Ultramax One Piece Toilet

This toilet from Toto projects TOTO’s mark of excellence: People Planet Water. So, if you’re looking for a toilet that saves water and performs great, then this is the one for you.

These toto toilets are one of the best energy efficient toilets as it only uses 1.28 gallons of water per flush. It works just as effectively as regular flush but uses a lot less water. That will make a significant difference in your water bills. And it is also WaterSense certified.

It also features an elongated bowl that gives you a comfortable user experience. Be it for men or women. The soft close seat cancels out noises and the possibility of cracks from happening.

This is truly one of the best flushing one piece toilet that won’t disappoint you.

Product Features:

      • Water sense certified
      • Features siphon jet flush
      • Includes soft close seat
      • Super smooth, ion barrier glazing toilet bowl
      • Elongated shaped bowl
      • Weighs 75 pounds
      • Uses 1.28 GPF

What We Liked:

      • Efficient and effective flush
      • Easy to clean
      • Easy to install
      • Comfortable to use
      • Uses less water
      • Smooth surface

Runner Up



SANIFLO Sanicompact - Dual-flush System - Residential

Saniflo Sanicompact Self-Contained Toilet

This tankless toilet from Saniflo will not only give you the independence to install it any place you want to be it small or big but will also perform effectively and efficiently.

The key feature of this toilet is its tankless design that will let you install it in small and compact places. Its discharge elbow installed at the back rotates up to 360 degrees that fits any type of installation. The adjustable dimension of this toilet lets you place it anywhere you want in your bathroom. And its sleek design will definitely accentuate the overall look of your bathroom.

When it comes to an efficient flush this toilet is not one to disappoint. Using just 1 gallons of water per flush, this toilet will make a remarkable difference in your water bills. And if you’re someone who is environmentally conscious too then this is the perfect product for you.

This toilet is always a constant in the best low flush one piece toilet reviews out there. And it’s not only because it’s efficient but effective too. You won’t be disappointed with this product or any other Saniflo toilet on the market.

Product Features:

  • Uses 1 GPF
  • Weighs 62.2 pounds
  • Elongated toilet bowl
  • Flush type: Gravity flush
  • Doesn’t need a toilet tank
  • Easy to install in small space
  • Discharge elbow on the back rotates 360° to fit any type of installation needs

What We Liked:

  • Takes up less space
  • Sleek design
  • Efficient flush
  • Good for green-conscious users
  • Easy to install and adjust

What We Didn’t Like

  • Makes noise when flushed
  • Toilet paper/wipes cannot be flushed

Runner Up



KOHLER K-4007-96 4007-96 Toilet, One Size, Biscuit

KOHLER San Souci Round-Front Toilet

Kohler is a well-known name in the plumbing industry for their amazing products. When it comes to toilets, they make some of the best one piece toilets in the market. And this one isn’t any different. The KOHLER K-4007-96 San Souci Round-Front toilet features a sleek, low profile design that comes in nine different shades. So you can buy one matching the theme of your bathroom. Its low profile design and the round-shaped bowl doesn’t take up much space like elongated ones. So you can install it in small areas. It features a highly efficient and effective flush that only uses 1.28 GPF. The gravity flush washed away everything all at once and the aqua piston canister flowed water into the bowl from 360-degree angles leaving no corners uncleaned. This best 1.28 GPF toilet is also WaterSense certified. The Grip-Tight Q3 seat provides a sturdy support that prevents the seat from slamming shut. Which avoids the possibility of cracks forming on the seat due to collision or making an unpleasant noise everytime someone uses the washroom. Product Features:
  • Comes in 9 colors
  • Low profile design
  • AquaPiston canister flows water from 360°
  • Weighs 92 pounds
  • Round shaped bowl
  • Floor mounted installation
  • Uses 1.28 GPF
  • Features gravity flush
What We Liked:
  • Takes up less space
  • Watersense certified
  • Efficient and effective flush
  • Grip-Tight Q3 seat prevents the seat from slamming
  • Uses less amount of water
  • Easy to use
  • Easy to install
What We Didn’t Like:
  • Less bowel space

Runner Up



Swiss Madison Well Made Forever SM-1T254 St. Tropez One Piece Toilet, 26.6 x 15 x 31 inches, Glossy White

Swiss Madison Well Made Forever One Piece Toilet

This next toilet from Swiss Madison, the St Tropez SM-1T254, is all about giving a luxurious and comfortable user experience.

This sleek toilet features a modernist design that will add a luxurious ambience to your bathroom. It is designed seamlessly with no corners that make it easier to clean and maintain. Its soft closing slim seat cancels noise every time someone uses it. Available in glossy white matte white bisque or matte black, the Swiss Madison one piece toilet can match your bathroom colour scheme perfectly.

This is also one of the best one-piece dual flush toilets having two separate water options being 0.8 GPF and 1.28 GPF. So you don’t need to waste extra water for washing down the liquid. With this, you can save a lot more water than regular toilets.

It’s elongated shaped bowl also makes it very comfortable to use. As it provides the extra room for both men and women. Its height is also suitable for all age groups. Anyone can use this toilet a lot more comfortably.

This product is always at the top in every high-efficiency toilet review. And we can understand why. This toilet will definitely live up to your expectations.

Product Features:

  • Features soft closing slymm seat
  • Features elongated bowl
  • Dual flush system
  • Uses 0.8/1.28 GPF
  • Features comfort height
  • Weighs 122 pounds

What We Liked:

  • Easy to clean
  • Seamless modern design
  • Glossy finish
  • Aesthetically pleasing
  • Easy to use

What We Didn’t Like:

  • Not the best for budget buyers

Runner Up



Kohler 3810-0 Santa Rosa Comfort Height Elongated 1.28 Gpf Toilet with Aquapiston Flush Technology And Left-Hand Trip Lever, White

Kohler 3810-0 Santa Rosa Comfort Height

Imagine a toilet that seamlessly blends design sophistication with unbeatable functionality – that’s the Kohler 3810-0 Santa Rosa Comfort Height toilet, my friend. Crafted with special Aquapiston Flush Technology and a left-hand trip lever, it’s carefully designed to ensure maximum comfort with minimum fuss.
The one-piece toilet offers a compact elongated bowl for added comfort, similar space occupancy as a round front bowl, and the comfort height feature sets the seat at a chair height to simplify sitting down and standing up for most adults.
Each flush uses only 1.28 gallons of water, illustrating water efficiency, while the AquaPiston canister spurs water into the bowl from all sides for a power-packed flush. Moreover, the unique flush valve’s 3:2 ratio taps into gravity’s natural force to enhance flush performance. Plus, you can expect a leak-free experience thanks to the durable canister design. An added bonus – it also comes with a quiet close seat!
This isn’t your run-of-the-mill toilet; it’s the result of cutting-edge engineering and a commitment to top-of-the-line performance.

Product Features:
1.28 GPF saves water
Includes brevia quiet close seat
Features elongated bowl
Chair height seating
Weighs 102 pounds
Floor mounted installation
  • Easy to clean
  • Highly efficient flush
  • Water-saving
  • Soft-close seat avoids noise
  • Comfortable to use
  • Sleek design
  • Not the best for budget buyers

Runner Up



EAGO TB351 Dual Flush Eco-Friendly Ceramic Toilet, White, 1-Piece

EAGO Dual Flush Eco-Friendly Ceramic Toilet

This next toilet from EAGO is all about simplicity and effectiveness.

This toilet features a dual flush of 0.8 GPF and 1.6 GPF respectively. So that you don’t need to waste extra water for washing down liquids. It is a highly powerful flush that will wash away everything in one flush. Unlike many other toilets, you don’t need to worry about flushing twice with this product.

It is an elongated shaped bowl that will give sufficient seating space for both men and women and will give you comfortable user experience. It also includes a soft close seat and a lid. So that you don’t need to go through the hassle of running errands to buy a seat and a lid for your toilet. And the seat is a soft close seat so you won’t be hearing unpleasant noise every time someone uses the toilet.

This toilet is easy to use and easy to clean. Its wide water area of the bowl keeps all kinds of odors down and allows you to easily clean it.

Product Features:

  • Dual flush of 0.8 and 1.6 GPF
  • Includes soft close seat and lid
  • Features wide water surface
  • Weighs 92 pounds
  • Elongated shaped bowl
  • Watersense certified

What We Liked:

  • Powerful flush
  • Features dual flush
  • Easy to clean
  • Wide water area keeps odors down and allows easy cleaning

What We Didn’t Like:

  • Takes up a lot of space

Features To Consider Before Buying

While there are many options when it comes to purchasing a one-piece toilet, buying the right one for you could be a challenge. Each product has different features but there are some features that you should look out for while buying the best one-piece toilet for yourself.

So, we noted down some pointers for you that you should keep in mind while buying any one piece toilet.

Water usage:

Different toilets use different amounts of water for every flush also known as GPF. Some use 1.6 GPF, some use !.28 GPF, 1 GPF, .8 GPF etc. The lower the amount of GPF is, the less water it uses. Toilets having 1.28 GPF are considered to be highly efficient and effective. But you might need to flush twice at times. But you won’t be facing this problem with toilets having 1.6 or higher GPF.

So if you’re someone who wants to own a toilet that saves a lot of water then go for a 1.28 or lower GPF toilet. But you don’t want to have the hassle of flushing it twice then buy ones with a higher GPF.

Bowl shape:

When it comes to the shape of the toilet bowl you’ll mainly find three options. Them being: elongated bowl, round bowl, or square bowl.

If you want a toilet that is comfortable and has a lot of sitting space then you should buy a toilet with an elongated shaped bowl. If you are short on space then go for a round-shaped bowl as they take up less space. And if you want to go for a completely different look then you can opt for a square-shaped bowl.

Flush type:

There are different options in the market when it comes to flushes. Such as gravity flush, pressure-assisted flush, siphon jet flush, and dual flush, etc. Each of these flushes uses a different mechanism to spray or release water to clean out waste. Like, in case of dual flush you get two separate GPF options to flush out waste. One of liquid and one for solid.


When it comes to design, there are a lot of options that the market has to offer. Be it classical designs or modern designs you’ll find toilets in different colors and finishes.

When choosing the right toilet for you, pick the one that matches your taste and the theme of your bathroom. And the dimension of the toilet so that it fits your targeted space.

Unique features:

There are some features that are unique in some products. You can’t find these features in all products. Such as a soft close seat, temperature-regulated seat, remote-controlled water spray, etc. For example- the WOODBRIDGE T-0019, Dual Flush Elongated One Piece Toilet features a remote that allows you to control the temperature of the seat.

So if you want your toilets to have such additional features then you need to keep an eye out for them.

One-Piece Vs Two-Piece Toilet: The Differences

By now, we’ve been talking and talking only about the best kind of one-piece toilet models in the market. But before you make up your mind, we want to be one hundred percent certain that you want a one-piece toilet instead of two-piece ones.

Hence, we’ll talk about some of the common points of differences and help you understand them better.

One Piece vs Two Piece Toilet: What’s What?

In case the tank and the toiler are in a joint (fused) together without any kind of joint or so, we call it a one-piece toilet. It’s also called the single piece toilet.

On the other hand, if there is a joint between the toilet and tank, made of fitting material, that’s a two-piece toilet for you. Also, they call it the coupled toilet.

How Much Do They Each Cost?

Of course, price is a big point of difference for such consumer toiletries like the toilet. As a matter of fact, single or one-piece toilets come for way higher prices than two-piece or coupled toilets.

This is because of two reasons:

  1. The production cost of one-piece toilets is way more expensive than two-piece toilets.
  2. In terms of durability and toughness, one-piece toilets are way more value providing than coupled toilets.

Install and Maintenance

At this point, you’re going to fall in love again for one-piece toilets, as they come to be super-easy to be installed and require almost no maintenance at all!

What makes it so? Well, in one-piece toilets, there is no gap between the bowl and the tank of the toilet. SO, there is no chance of germs and bacteria buildup, which is not the case with two-piece toilets.

On the other hand, installing these toilets is super easy. All you need is your own pair of hands and a quick mounting process. No handyman magic required to set it up.

Tips For Maintaining A One-Piece Toilets:

You spend a lot of money when you purchase a one-piece toilet for your home or office. Naturally, you want it to last for a long time. But in order for you to achieve that you should carry out proper maintenance steps and actions.

Here are some tips that you could follow for maintaining a one-piece toilet.


Cleaning your toilet often is a good practice that will keep your toilet stain and odor-free. But make sure to not use drop in the tank cleaners as they can harm the interior walls of your toilet. Instead, opt for an in bowl applying cleaners and use a porcelain friendly scrubber.

Check for leaks:

A running toilet occurs when the flapper valve which controls water flow from the tank to the bowl is damaged, causing leaks inside your toilet. Running toilets can waste a lot of water. To check your toilets for leaks, place a few drops of food coloring into the water in the tank and make sure to not use the toilet for 20-30 minutes, after that check water in the bowl. If there is any coloring the leakage needs to be taken care of.

Avoid throwing objects:

Your toilet drain might look very large but it is in fact very small. It is only meant to take in the waste. If you throw wipes and toilet papers it might get clogged. Sometimes children throw toys into the toilet which clogs the drain and it cannot be unclogged till a professional comes in. So always make sure to not throw any hard objects.

Frequently asked questions (FAQs)

01. One piece vs two piece toilet: which one is better?

When it comes to being easy to clean and taking up less space, one-piece toilets are better than two-piece toilets.

02. Which is better: single or dual flush toilets?

When it comes to easier operation, single flush toilets are better since they use the same amount of water per flush. But when it comes to giving more control, a dual flush is better as it provides you two GPF options.

03. Can you replace a two-piece toilet with a one piece toilet?

Yes, you can. You can easily replace your two piece toilet with a one piece toilet with too much hassle. Buy you need to make sure that the basic specification and bowl size is similar.

04. Is 1.6 or 1.28 toilet better?

1.6 GPF toilets are better when it comes to cleaning waste in one flush. Unlike 1.28 GPF where you might need to flush twice to clear waste. But they also use more water than 1.28 GPF toilets.

05. Which is better: round or elongated toilet?

Elongated toilet bowls are better than round ones when it comes to comfort and giving extra sitting space. But if space is an issue for you then round toilets are the better option for you.

06. How soon can you use a toilet after installing?

You can use it right after you complete the toilet installation. But toilet plumbers near me suggest you not pour or use any water near the floor where the toilet is mounted for at least 24 hours to allow the sealant to cure. When hiring a plumber to replace a toilet costs are typically quite affordable or you can DIY.

Final words:

Despite having a few drawbacks these one-piece toilets have met up to our expectations of being a few of the best one-piece toilets in the market.

Although each of these toilets is great, each product has different features to offer you at different price points. So you can pick one that tailors to your needs.


Save time and $$$ with a no obligation quote from recommended plumbers nationwide. It takes just 30 seconds.

We tried to present almost all the features of each of these products, be it good or bad to help you make the right decision while purchasing the perfect product for yourself. We hope our detailed one piece toilet reviews of the top-rated one piece toilets in the market has helped you find your way in the sea of options.

Thank you for staying with us until the end!