Many consumers love the sleek and modern appearance of one-piece toilets. This is because a one-piece commode complements the modern bathroom interior. Unlike two-piece toilets that have a tank and bowl separate, one-piece toilets come with solid construction and just one piece that acts as the tank, seat, and base. 
Moreover, many homeowners prefer one-piece commodes because they are easier to clean as they don’t feature nooks and crannies found in two-piece toilets. So, what is the best one-piece toilet to buy?
With most of the top manufacturing offering one-piece toilet designs, choosing a good Flushing toilet for your home can be quite challenging.
Our Recommended Top 3 One-Piece Toilet Comparison Chart
| Image | One Piece Toilets | Feature Details |
|---|---|---|
Value for Money Check Price | TOTO MS604114CEFG#11 UltraMax II One-Piece Elongated 1.28 GPF Universal Height Toilet with CEFIONTECT, Cotton White Read Review | |
2021 Editor's Choice Check Price | TOTO MW644584CEFG#01 WASHLET+ Carolina II One-Piece Elongated 1.28 GPF Toilet and WASHLET S350e Bidet Seat, Cotton White Read Review | |
Powerful flush Check Price | American Standard 2034.014.020 Champion-4 Right Height One-Piece Elongated Toilet, White Read Review | |
Most Advanced toilet Check Price | Toto MS992CUMFG#01 Neorest 1.0 GPF and 0.8 GPF 700H Dual Flush Toilet, Cotton White Read Review |
So, if you’re looking for the best 1-piece toilet to install in your modern bathroom, worry not, as we’ve already done the research for you and came up with the ten best 1-piece toilet designs on the market. We considered a number of features when choosing these toilets, such as flushing power, size, comfort, height, water consumption, and eco-friendliness.
Page Contents
- 1 Our Recommended Top 3 One-Piece Toilet Comparison Chart
- 2 Top 10 Best One-Piece Toilet Reviews 2021
- 2.1 Toto MS604114CEFG#11 UltraMax II One-piece Toilet
- 2.2 Kohler K-5172-0 San Souci One-piece Flushing Toilet
- 2.3 Toto MS62621CEFG#12 Aimes One-piece Toilet
- 2.4 American Standard 2034.014.020 Champion-4 One-piece Toilet
- 2.5 Saniflo 023 Sanicompact Self-contained Toilet
- 2.6 Toto MW644584CEFG#01 Washlet+ Carolina II Commode
- 2.7 Kohler One-piece K-5401-0 Veil Skirted Toilet
- 2.8 Toto MS992CUMFG#01 Neorest best 1-piece Toilet
- 2.9 WoodBridge T-0001 Dual Flush Toilet
- 2.10 Toto Carlyle II Elongated 1.28 GPF Toilet
Top 10 Best One-Piece Toilet Reviews 2021
I have added the most popular and best-selling one-piece toilet models list here.
Toto MS604114CEFG#11 UltraMax II One-piece Toilet
The Toto Ultramax II one-piece commode features the double cyclone flush system that creates a centrifugal action that cleans the rim and bowl properly in just one flush. The Sleek design will automatically change any bathroom where the toilet is installed, and it is very comfortable. Thanks to the ADA compliant height and elongated bowl design.
Related: Toto Ultramax Review
Besides being beautiful and powerful, the Toto ms604114cefg 01 Ultramax ii toilet design is very easy to clean as it has CEFIONTECT smooth glaze, which prevents dirt and other particles from sticking to the toilet bowl. This, together with the tornado flush, makes cleaning the toilet regularly a thing of the past, and little chemicals are also utilized. It also uses just 1.28 gallons per flush and has its trip chrome lever on the left-hand side for public use.
Technical Specifications of the Toto Ultramax II Toilet
| Features | Ultramax II |
| Piece: | One-Piece |
| Water Consumption: | 1.28 GPF |
| Material: | Vitreous China |
| Shape: | Elongated |
| Certification: | WaterSense |
| Color: | Cotton White |
| Flush Type: | Water-Saving Tornado Flush system |
| Installation Method: | Floor Mounted |
| SanaGloss finish: | Yes |
| Universal Height Standard: | Yes |
| CEFIONTECT glaze: | Yes |
| MAP Testing Score: | >= 800 (Highly Recommended) |
| Seat: | Include SoftClose seat |
| Size: | 28 3/8″ x 16 1/2″ x 28 3/4″(LxWxH) |
| Warranty : | One Year Limited Warranty |
| Price: |  Check Price |
Pros:
- It is durably made of vitreous china material
- It is easy to clean
- The one-piece toilet has an elongated bowl design for added comfort
- It is a high-efficiency toilet thus saves water
- It is ADA compliant. Thus, it can be used by different people
- The SoftClose seat prevents slamming of the toilet seat
- The toilet comes with a one-year limited warranty
Cons:
- It is somehow expensive
- The toilet is a bit loud during flushing.
Kohler K-5172-0 San Souci One-piece Flushing Toilet
Kohler and Toto go head-to-head when it comes to the best toilets. The Kohler K-5172-0 San Souci toilet is another outstanding one-piece toilet. This toilet is very comfortable with its comfort height feature, and it comes in a wide range of colors. Installing this toilet in your bathroom will not only change the appearance of your bathroom but as well as add a touch of elegance.
The Kohler San Souci toilet is compact in design but still with an elongated bowl. So, you can install it in a small bathroom but still enjoy the comfort of an elongated bowl design. The toilet has an innovative aqua piston flushing technology that delivers a powerful and almost plug-free flush. While doing this, it only uses 1.28 gallons of water with the G-Max flushing system. Unlike other toilets, you won’t have leakages as it features a robust canister design with 90% less exposed seal material.
Technical Specifications of the Kohler K-5172-0 San Souci Toilet
| Features | Kohler K-5172-0 San Souci |
| Piece: | One-Piece |
| Water Consumption: | 1.28 GPF |
| Material: | Vitreous China |
| Shape: | Elongated |
| Certification: | WaterSense |
| Color: | White |
| Flushing Technology: | Gravity Flush |
| Handle/Lever Placement: | Left |
| Bowl Height: | Chair height seating |
| MAP Testing Score: | >= 1000 (Highly Recommended) |
| Size: | 25.31 x 16.38 x 27.75 inches |
| Included: | Bolts, Seat |
| Warranty : | One Year Limited Warranty |
| Price: |  Check Price |
Pros:
- Excellent design
- Easy to clean
- Powerful aqua piston flushing technology
- It saves water as it uses just 1.28 GPF
- Comfortable toilet with an elongated bowl design
- Toilet seat included
- Toto toilet offers Leak-free performance
Cons:
- Installing this toilet is quite challenging, and you will need help.
Toto MS62621CEFG#12 Aimes One-piece Toilet
This is another amazing single-piece commode from Toto. The Toto Aimes toilet is one of the best one-piece toilets for individuals who are looking for a flawlessly flush toilet. It doesn’t make a lot of noise like some other units, and it clears the contents in just one flush. Apart from that, the Toto Aimes toilet is easy to clean both inside and outside. Inside, it features SanaGloss ceramic glaze that keeps the toilet cleaner for longer, while on the outside, it has a skirted design that eliminates the nooks and crannies that have to be cleaned. It is a great single-piece flushing toilet for the money.
Related: Toto Legato Toilet Review: One-Piece High-Efficiency Toilet
The Toto Aimes is also comfortable to sit or stand up as it features a universal height with a quiet close lid that won’t create much attention after use. With its low water consumption rate of 1.28 GPF, this is a great toilet to install in your contemporary bathroom.
Technical Specifications of the Toto Aimes Toilet
| Features | Toto Aimes Toilet |
| Water Consumption: | 1.28 GPM |
| Pieces: | One-Piece Toilet |
| Color: | Cotton |
| Shape: | Elongated |
| Material: | Ceramic |
| Flushing Type: | Gravity Flush Toilets |
| Certification: | WaterSense |
| Voltage: | 1 volt |
| Number of Handles: | 1 |
| Installation Method: | floor |
| Dimensions: | 28.5 x 17.2 x 28 inches |
| Warranty: | One year limited warranty |
| Price: |  Check Price |
Pros:
- High-efficiency toilet
- Easy to clean with a skirted design
- Powerful double cyclone efficient flushing system clears solid waste in a single flush
- Comfortable elongated bowl design
- Soft-closing seat prevents slamming of the toilet seat
- Toilets remain clean for longer with the SanaGloss ceramic glaze
- The toilet is WaterSense certified
- It operates almost silently
Cons:
- It is expensive
American Standard 2034.014.020 Champion-4 One-piece Toilet
American Standard champion-4 is one of the best-selling one-piece commode models on the market. This comfortable and ADA compliant toilet features a 4-inch piston action accelerator that pushes water into the bowl three times quicker than a standard 2-inch flush valve. In addition, it has a large, fully glazed 2-3/8-inch Trapway that moves 40% larger mass than the industry standard. So, clogging will be a thing of the past.
Related: American Standard Champion 4 Max Reviews
The Champion-4 one-piece toilet also has an EverClean surface on the inside and outside that prevents the growth of bacteria, mildew, and mold. As a result, cleaning is greatly minimized. With an outstanding 10-year warranty, this is a great toilet to invest your money in.
Technical Specifications of the American Standard Champion 4 Toilet:
| Features | Champion 4 |
| Water Consumption: | 1.6 GPF |
| Pieces: | One-Piece |
| Certification: | ADA |
| Material: | Porcelain Toilets |
| Shape: | Elongated |
| MAP Testing Score: | >= 1000 (Highly Recommended) |
| Flush Type: | siphon jet flushing system |
| Dimensions: | 29.8 x 17.8 x 29.5 inches |
| Special Features: | Comfort HeightComfort Height |
| Warranty: | 10-year limited warranty |
| Price: |  Check Price |
Pros:
- It is very comfortable with the elongated design
- This one-piece toilet is durably made of vitreous china material
- It is easy to clean
- The EverClean surface prevents debris, mold, mildew, and stains from sticking to the toilet
- Easy to install with the 12-inch rough-in
- Powerful champion-4 flushing system moves mass 70% larger than the industry standard
- It is ADA compliant
- It is 100 percent factory tested
- Ten years warranty
Cons:
- It doesn’t come with a toilet seat. Thus, you will have to buy it separately.
Saniflo 023 Sanicompact Self-contained Toilet
The Saniflo Sanicompact self-contained toilet is the perfect one-piece flushing commode for homeowners looking for a compact toilet for their attic, garage, basement, ground floor, or upper floor. This high-performing toilet doesn’t need a tank and comes with a push-button (air switch) on top of the bowl for flushing action and macerating pump cycle. The process is automatic, and the flushing system is electronically timed to grant around 1 GPF of water to pass through the toilet.
Related: Best Macerator Toilet Review [Select Quality Upflush Toilets]
The compact design toilet can as well as handle the effluent from both the toilet and sink. It also has a non-return valve, which is already assembled on the discharge elbow, and prevents backflow into the toilet.
Technical Specifications of the Saniflo 023 Sanicompact:
| Features | Saniflo 023 Sanicompact |
| Water Consumption: | 1.6 GPF |
| Pieces: | Two-Piece |
| Material: | Porcelain Toilets |
| Shape: | Elongated |
| Flush Technology: | Gravity Flush Toilets |
| Special Features: | Easy to Install, Quiet flush, Adjustable |
| Warranty: | 2 Years warranty |
| Price: |  Check Price |
Pros:
- Low water consumption
- Comfortable bowl design
- Durable construction
- It occupies very little bathroom space, making it suitable for places like the attic, garage, or basement
- It has the ability to discharge wastewater from the sink
- Skirted bowl design for easy cleaning
- 2-years warranty
Cons:
- It needs electricity to operate
- It is quite cumbersome to install, and you will require a professional plumber to install it.
Toto MW644584CEFG#01 Washlet+ Carolina II Commode
The Toto Washlet+ Carolina II one-piece toilet is one of the most sophisticated toilets that you will find on the market. This Washlet S350e comes with an elongated toilet bowl design and a universal height for comfort and convenience to different users. It has Toto’s tornado flushing system that clears waste easily and only uses 1.28 GPF to-do-so.
The toilet comes with outstanding features like the Ewater+ system, CEFIONTECT smooth glaze, and the PREMIST function to keep the toilet clean for longer. As a result, you won’t have to clean the toilet regularly. During cold evenings or seasons, you will have no problem visiting the toilet as it has a heated seat with adjustable settings.
Technical Specifications of the Toto MW644584CEFG#01 Carolina ii Toilet
| Features | Toto MW644584CEFG#01 |
| Water Consumption: | 1.28 gallons per flush |
| Pieces: | One Piece |
| Finish: | Cotton |
| Material: | Vitreous China |
| Shape: | Elongated |
| Five adjustable temperature controls: | Yes |
| Number of Handles: | One |
| Certification: | Watersense |
| Auto open/close lid and heated seat: | Yes |
| Automatic air deodorizer and nightlight: | Yes |
| Dimensions: | 28.3 x 17.5 x 25.6 inches |
| Warranty: | One Year Limited Warranty |
| Price: |  Check Price |
Pros:
- It has a powerful tornado flush system that clears contents in a single flush.
- The toilet bowl is kept clean and hygienic with the Ewater+ system
- The CEFIONTECT glaze prevents stains, mold, and mildew from adhering to the surface
- It is beautiful with its skirted and one-piece design
- This one-piece toilet is comfortable to use by people of all ages as it has an elongated toilet bowl and a universal height
- It is convenient to use as it has a heated seat with settings
- No more slamming of the seat as it opens and closes automatically
- EPA WaterSense certified
- One year limited warranty
Cons:
- It doesn’t come with installation items like mounting bolts, wax rings, and water supply lines. You will have to buy these separately.
- At this price range, the warranty could have been better, but it only lasts for a one-year.
Kohler One-piece K-5401-0 Veil Skirted Toilet
If you want to go luxurious, the Kohler K-5401-0 will be the best flushing toilet for you. Despite being expensive, this toilet is worth every penny as it comes with advanced features that you won’t find in your regular toilet models. For instance, this toilet features an elongated bowl with integrated cleansing. This means that you won’t need tissue paper when you visit this toilet. In addition, it has an LCD touchscreen remote in English for operating different settings.
Moreover, this high-end toilet comes with LED lighting that illuminates the bowl. Thus you will have no problem identifying it. The pre-installed toilet seat is heated with adjustable temperature settings. Other features that make it exceptional include water pressure, warm air dryer function, pulsate and oscillate functions. Overall, the Veil intelligent is a great toilet for a person looking for comfort and great aesthetics in their bathroom.
Technical Specifications of the Kohler Veil Intelligent Toilet
| Features | Veil Intelligent Toilet |
| Water Consumption: | 1.28 & 0.8 GPF |
| Pieces: | One-Piece |
| Color/Finish: | White |
| Material: | China |
| Certification: | Watersense |
| Bowl Shape: | Elongated |
| Flushing Type: | Dual Flush Toilets |
| Included Components: | 1 |
| Gallons Per Flush: | 1.28 or 0.8 (For liquid waste) |
| Weight: | 110 pounds |
| Dimensions: | 26.4 x 17.2 x 21.4 inches |
| Warranty: | One-year limited |
| Price: |  Check Price |
Pros:
- Durable modern toilet
- EPA WaterSense certified
- LED lighting for a nightlight
- Compact and comfortable
- Easy to control with the touchscreen LCD remote
- Easy to clean and hygienic hands-free opening and closing
- One-year warranty
Cons:
- It is quite expensive
- You need time to learn how to use it
Toto MS992CUMFG#01 Neorest best 1-piece Toilet
The Toto Neorest one-piece toilet is the most versatile toilet on our list. It is also the most expensive but worth the money. This high-quality smart toilet from Toto comes with a double cyclone flushing mechanism for ultra-high efficiency. A partial flush uses only 0.8 GPF, while a full flush uses 1.0 GPF. This makes it also an eco-friendly toilet, and it doesn’t come with a toilet tank. It is one of the most powerful single-piece commodes from the Toto brand.
After using this toilet, it automatically flushes, making it very hygienic. It also has a comfortable elongated shape with a SoftClose seat that prevents slamming. When it is cold, you can turn on the heated toilet seat and be comfortable. The convenient remote allows you to change the temperature as you wish for a better experience. With these and many other features, the nearest toilet brings a new toilet experience into the bathroom that hasn’t been seen before.
Technical Specifications of the Toto Neorest 700H Toilet
| Features | Toto Neorest 700H |
| Pieces: | One-Piece |
| Water Consumption: | 1.0 GPF & 0.8GPF |
| Color/Finish: | Cotton White |
| Shape: | Oval |
| Material: | Ceramic with SanaGloss |
| Certification: | Watersense |
| Flush Type: | Siphon Jet |
| Power Source: | Corded-electric |
| Voltage: | 120 volts |
| Dimensions: | 32.5 x 15.5 x 21.5 inches |
| Warranty: | 3-year limited(residential). One year limited(commercial) |
| Price: |  Check Price |
Pros:
- An exceptional oval-shaped toilet beautifies the bathroom.
- Ultra-high efficiency toilet
- Comfortable elongated toilet design
- Hands-free operation as it has a remote control
- Heated seat for added comfort when the toilet is cold
- A powerful flushing system clears waste in a single flush
- 3-year warranty
Cons:
- It is costly
- It is quite a challenge to use by first-timers and needs time to learn it
WoodBridge T-0001 Dual Flush Toilet
WoodBridge T-0001 dual flush toilet is sleekly designed and will easily blend in any modern bathroom. This luxurious toilet comes with an elongated design for added comfort with a slow closing seat to prevent slamming the seat. It also has powerful flushing that clears the toilet bowl in just one flush, but at the same time, it is very silent. Therefore, you won’t have clogs or leaks like in some toilets.
Besides, the dual flush toilet is also easy to clean as it features a skirted design with no corners or grooves to take up your time. With a water usage rate of 1.6 GPF/1.0 GPF, you will end up saving water in the long run.
Technical Specifications of the Woodbridge T 0001 toilet
| Features | Woodbridge T 0001 |
| Pieces: | Elongated one piece toilet |
| Water Consumption: | 1.28 gallons for full flush |
| Material: | Ceramic |
| Finish/Color: | Pure White |
| Shape: | Elongated, Comfortable Height, Easy to clean shape |
| Flush Type: | Siphon Jet, Dual Flush |
| Included Components: | Slow closing seat, Wax ring, and floor bolts |
| Warranty: | Five years limited warranty |
| Price: |  Check Price |
Pros:
- Dual flush system
- Elongated toilet bowl for comfort
- High-end soft closing seat prevents slamming
- Easy to clean with its skirted design
- Outstanding one-piece design matches with most modern bathrooms
- EPA WaterSense certified
- Five years limited warranty
Cons:
- The flush buttons on top of the toilet are too small and need one to press for long in order for the toilet to flush.
- It needs professional installation, and it is quite heavy for one person to install it.
Toto Carlyle II Elongated 1.28 GPF Toilet
The Toto Carlyle II is a nice toilet for homeowners looking for an affordable but still quality toilet to add to their bathroom. It is of a universal height and features an elongated design for comfort. The Tornado flushing system is very powerful, and together with the CEFIONTECT glaze, they clear the solid waste perfectly, leaving the toilet clean. On top of that, it has a soft closing seat, and it is DA compliant. With its skirted design, cleaning is minimized, and little chemicals will be released into the environment. The Carlyle II is a single-piece toilet from the Toto brand.
The Toto Carlyle ii one-piece elongated 1.28 GPF flush toilet with CeFiONtect finish is a wonderful addition to most modern toilets. It will immediately change the look of your bathroom, and it comes with a wide range of colors to choose from. You can choose from colonial white, bone, cotton, to Sedona beige. Also, this is a one-piece toilet, thus very easy to wash. The toilet features a skirted design, which means there is less cleaning of the exterior parts of the toilets as the part between the water tank and bowl is hidden.
Technical Specifications of the Toto Carlyle II Toilet
| Features | Toto Carlyle II |
| Pieces: | 1-Piece |
| Water Consumption: | 1.28 GPF |
| Color: | Colonial White |
| Finish: | Chrome |
| Certification: | ADA, WaterSense, CALGreen, and CEC compliant |
| Material: | Vitreous China |
| Flush Type: | Water-Saving Toilets |
| Product Dimensions: | 28.2 x 28.2 x 16.5 inches |
| Item Weight: | 110 pound |
| Price: |  Check Price |
Pros:
- Sturdy construction with stainless steel hinge
- EPA WaterSense certified
- Comfortable elongated bowl toilet
- CEFIONTECT glaze keeps the toilet cleaner for a longer
- Easy to clean with the skirted design
- The Tornado flush clears everything in the bowl at once
- It is ADA compliant
Cons:
- The toilet lid is of poor quality and not stable
- Many users have complained that the SanaGloss finish doesn’t live up to its hype, as marks can still be seen.
Conclusion
Investing in a high-quality toilet can save you money and stress associated with the maintenance of low-quality toilets! So, when you go out in search of a toilet to install in your new home or to replace the old one, ensure that you pick a good toilet that will last for many years to come without having to worry about clogs or breakage.
One-piece toilets are the best for that matter as they are easy to maintain, sturdy, easy to clean, and very comfortable to use. The toilet models that we’ve discussed in this best one-piece toilet post are worth the money, and it all depends on your taste, needs, and budget.
FAQ
Question: What is a one-piece toilet?
Answer: one-piece toilet comes with the tank and seat integrated into one unit, thus eliminating the crevice between the tank and bowl that can usually get dirty. Most upscale homes install one-piece toilets in their homes, and these toilets usually have a low profile.
Question: What features should I consider when buying a toilet?
Answer: Before you purchase a toilet, there are various factors that you should consider, and they include bowl type, toilet height, flushing system, water usage, and toilet rough-in. The best bowl design is an elongated bowl as it offers more comfort, while the round toilet bowl is great for small space. The most common rough-in is the 10-inch rough-in, and it is the standard. Americans with Disabilities recommends people install toilets with a height of between 17 to 19 inches. The standard toilet height is 14-1/2-inches.
Question: How can I upgrade my toilet?
Answer: One of the easiest ways of upgrading your toilet is by choosing a SoftClose seat that doesn’t slam or make noise after visiting the toilet. The Second way of upgrading your toilet is by upgrading your trip lever finish. Most trip levers come in a chrome-plated finish. Instead, you can change it to another finish in order to match your towel bars or faucet.
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