A seamless, modern toilet design that simplifies cleaning and offers a sleek bathroom upgrade. You’ve probably noticed the difference when you see one – no crevices, no bolts, just a smooth curve from tank to bowl. That’s exactly what a one piece toilet delivers. It’s easier to wipe down, and you won’t have to scrub those annoying little gaps. For any busy household, thats a win.
But it’s not just about the cleaning. The low-profile look gives your bathroom a clean, almost floating vibe. You might be wondering if it’s worth the switch from a traditional two-piece. Stick around, because we’ll break down the real-world pros and cons. Honestly, once you see how simple this setup is, you might never look back.
Product Comparison Table: 9 Best One Piece Toilet
| Image | Why We Like This Product | Editor’s Rating | |
 |
HOROW T0338W Compact One Piece Toilet, ADA Chair Height…
|
9.9 |
Read Review |
 |
HOROW T0338W One Piece Toilet with Non-Electric Bidet Toilet…
|
9.6 |
Read Review |
 |
Casta Diva Elongated One Piece Toilet with 17″ ADA…
|
9.3 |
Read Review |
 |
Casta Diva Elongated One Piece Toilet with 17.2″ ADA…
|
9.1 |
Read Review |
 |
BayRoll One Piece Sleek Modern Toilet, ADA Chair Seat…
|
8.8 |
Read Review |
 |
Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual…
|
8.5 |
Read Review |
 |
St. Tropez One-Piece 14″ Rough-in 1.1/1.6 GPF Dual Top…
|
8.2 |
Read Review |
 |
EPLO Smart Toilet Bidet with Auto Open Close,1000 Gram…
|
8.0 |
Read Review |
 |
HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close…
|
7.7 |
Read Review |
Quick Review For Top 9 One Piece Toilet
HOROW T0338W Compact One Piece Toilet, ADA Chair Height 17.3", Elongated Bowl, Dual Flush 0.8/1.28 GPF, White, 12 Inch Rough-In
The HOROW T0338W Compact One Piece Toilet is built for bathrooms where space is tight but comfort still matters. It measures 26.6 inches deep, 15 inches wide, and 26 inches high, so it slides into smaller layouts without feeling cramped. The one-piece design means there is no gap between the tank and bowl, which gives it a cleaner look and makes wiping down the exterior much easier for you.
You get a seat height of 17.3 inches from the floor, which matches ADA chair height standards.
This makes sitting down and standing up more comfortable for many adults, seniors, or anyone who wants a little extra accessibility in their daily routine. The elongated bowl also gives you more room compared to a round front, so it feels more natural to use.
The flushing system uses siphon action and a fully-glazed two-inch trapway to move waste with strong force.
It is a dual flush toilet, so you can choose between 0.8 gallons per flush for liquid waste and 1.28 gallons per flush for solid waste. This helps you save water over time without sacrifcing performance. The flush is quiet and effective, so you won’t have to worry about clogs from everyday use.
Installation is straightforward thanks to large side access openings that make floor mounting easier.
HOROW T0338W One Piece Toilet with Non-Electric Bidet Toilet Seat, Elongated ADA Chair Height Toilets with Adjustable Nozzles Seat, Powerful Dual Flush & Soft Closing Seat Include, White
The HOROW T0338W One Piece Toilet with Non-Electric Bidet Toilet Seat is a practical home fixture designed for everyday comfort and ease. This toilet comes as one complete unit, so you don’t have to buy the seat separably. It features a chair height that meets ADA standards. That means it reduces strain on your knees and joints when you sit down or stand up.
It gives you more space to feel stable, which is helpful for users of all ages.
You won’t need any electrical work to use the bidet function. The non-electric bidet seat works by turning a side button to adjust the spray pressure. It is simple and safe for pregnant women, children, and older adults to operate. The bidet nozzle has an ergonomic water jet design. You can adjust the water pressure to match what feels good for you.
There are two cleaning modes: rear washing and feminine washing. These give you a refreshing clean without needing batteries or a plug.
Flushing is strong and efficient. The toilet uses a siphonic flush system with a fully-glazed 2-inch trapway. You have two flush options: 0.8 gallons for liquid waste and 1.28 gallons for solid waste. Compared to an older 3.5-gallon toilet, this can save up to 16,500 gallons of water each year.
Casta Diva Elongated One Piece Toilet with 17" ADA Comfort Chair Height Seat Compact Toilet for Bathroom Dual Flush 1.1/1.6GPF, 12'' Rough-in, High Efficiency Flush, Standard White Bowl
The Casta Diva Elongated One Piece Toilet with 17″ ADA Comfort Chair Height Seat is a practical choice for your bathroom. It combines a modern look with features that make daily life simpler.
This is a skirted one-piece toilet. The tank and bowl are molded together into one seamless unit. This design eliminates the gap where dirt usualy collects, making cleaning much easier. You also avoid potential leaks that can happen with two-piece toilets.
The bowl comes in a standard white finish that fits most bathrooms.
The flushing system is a highlight. It uses a powerful siphon jet action with a MAP rating of 1000. This means it can handle up to 1000 grams of waste in a single flush. The trapway is fully glazed, which helps waste slide through smoothly. The result is a quiet, strong flush that rarely clogs. For water savings, you get a dual-flush option. Use 1.1 gallons per flush for liquids and 1.6 gallons for solids.
It meets EPA WaterSense criteria, so you are conserving water without sacrificing performance.
Comfort is built in. The toilet has a 17-inch chair height seat, which matches ADA standards. This makes sitting down and standing up easier for people of all ages or those with mobility concerns. The compact elongated bowl measures 27.17 inches deep, 14.37 inches wide, and 25.39 inches high.
Casta Diva Elongated One Piece Toilet with 17.2" ADA Comfort Height Seat Modern Toilet for Bathroom 1.0GPF Button & Foot Kick Flush, Air Pressure Assisted Flush, 12'' Rough-in, Standard White Bowl
The Casta Diva Elongated One Piece Toilet with 17.2″ ADA Comfort Height is built around a simple idea: a toilet that flushes powerfully without needing electricity or complicated parts. It uses an air-pressure assisted system that sits inside the tank. This patented design pushes water down with force, even if your home has low water pressure. You get a strong, reliable flush every time, and it uses only 1.0 gallons per flush.
That meets EPA WaterSense standards for saving water, so your utility bill stays low.
You have two ways to flush. There is a side button for a standard push, and a foot kick at the base for hands-free use. The foot flush is great for hygiene—no touching anything with your hands. It also helps if you have limited mobility or just want to keep things clean. No electricity is needed for any of this.
The toilet runs completely off your home’s water pressure, which makes it a smart choice for a bathroom remodel where you don’t want to run new wiring.
The siphon jet flush system gives you a MAP score of 1000 grams. That means it handles solid waste easily without clogging. The bowl is elongated, which provides extra comfort and space. The seat height is 17.2 inches, matching ADA guidelines.
BayRoll One Piece Sleek Modern Toilet, ADA Chair Seat Height 17", Dual Flush 0.9/1.28 GPF, MAP 1000g, 12" Rough-In, Compact Fully Skirted Round Toilet for Bathrooms Soft Close Seat
The BayRoll One Piece Sleek Modern Toilet is designed with both function and practicality in mind. It comes with a 12-inch rough-in, which means the distance from the wall to the center of the sewage outlet is 12 inches. The toilet includes two side holes to make installation easier, and it ships with a bolt kit, hinge kit, water supply pipe connector, and wax ring.
You will need to supply your own water supply pipe and floor flange, and if you don’t have plumbing experience, it’s best to call a professional.
This fully skirted toilet is built for easier cleaning. The one-piece design removes the gap between the tank and bowl where dirt usually collects. Before you buy, check the angle valve position diagram in the product images.
The horizontal distance between the angle valve and the center of the waste pipe should be greater than 8 inches, or the protruding length of the angle valve should be less than 3 inches. This is a shorter, space-saving model at 25.5 inches deep, 14.7 inches wide, and 27 inches high. It fits well in apartments, studios, secondary bathrooms, and commercial spaces like cafes or hotels.
The seat is soft-close and quick-release.
Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual Tornado Flush 0.8/1.28 GPF with Soft Closing Seat, Comfort Height
The Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual Tornado Flush 0.8/1.28 GPF with Soft Closing Seat, Comfort Height is a practical choice for a modern bathroom. This toilet focuses on function and comfort without unneeded extras.
You get a dual vortex flush system. It creates a cyclonic rinsing action that scrubs the bowl as it flushes. This ensures superior waste disposal.
It uses a minimum of 1.1 gallons per flush for water efficiency, but it can handle a maximum flush capacity of 1.6 gallons when needed. That means you save water without sacrifcing performance.
The rough-in is a standard 12 inches, so it fits most existing plumbing setups. The bowl is elongated. This gives you extra room and makes sitting more comfortable. The toilet is standard height, coming in between 15 and 17 inches. This height is designed with ergonomic considerations in mind.
It offers good comfort for users of all ages and body types. Getting up and down is easier.
The ceramic material is durable, non-porous, and scratch resistant. It can handle daily use without showing wear. The whole unit is fully glazed. The trapway is also fully glazed, which helps prevent clogs and keeps water flowing freely. The trapway is skirted, so the plumbing is hidden. This gives the toilet a clean, elevated look and makes cleaning simpler.
St. Tropez One-Piece 14" Rough-in 1.1/1.6 GPF Dual Top Flush Elongated Toilet in Glossy White
The St. Tropez One-Piece 14″ Rough-in 1.1/1.6 GPF Dual Top Flush Elongated Toilet in Glossy White is built with practicality and everyday comfort in mind. This toilet focuses on giving you control and making your life easier, starting with the dual flush system. You’ll find two buttons on top. One uses just 1.1 gallons for liquid waste, and the other uses 1.6 gallons for solid waste.
This lets you choose the right amount of water every time, which is good for your utility bill and the environment.
The elongated bowl shape gives you extra room and makes sitting more comfortable than a round bowl. It sits at a standard height, between 15 and 17 inches. This is designed to be comfortable for people of different ages and body types. Getting up and down is easier, making it a solid choice for most households.
Durability is a key part of this toilet.
It is made from a non-porous ceramic that resists scratches. This means it can handle daily use without showing wear and tear quickly. The surface is tough and easy to wipe clean. You won’t have to worry about stains setting in as easily because the material doesn’t absorb water.
Cleaning is also simplified by the skirted trapway. This design hides the plumbing, giving the toilet a smooth, clean look without a lot of nooks and crannies. The trapway inside is also fully glazed.
EPLO Smart Toilet Bidet with Auto Open Close,1000 Gram MaP Flush Score,Foam Dispenser, ADA Comfort Height, Moving Dryer,Auto Flush,Heated Seat,One Piece Elongated Toilet with Tank Built in U8MAX
The EPLO Smart Toilet Bidet with Auto Open Close, model U8MAX, is built to make your daily routine simpler and more comfortable. Right from the start, you get a powerful flush that actually works. It has a MaP flush score of 1000 grams, which means it clears waste completely without clogging. The flush is strong but quiet, so it wont disturb anyone else in the house, even late at night. You can count on it to keep your bathroom clean and calm. One of the handiest features is the foam dispenser.
It creates a protective layer on the water before you use the toilet. This helps stop splashback and keeps waste from sticking to the bowl. The result is a toilet that stays cleaner between cleanings, making your morning and evening routines a little more pleasant. No more scrubbing as often. The moving dryer is a big upgrade. It adjusts speed, temperature, and position to dry you thoroughly after washing. This cuts down on toilet paper use and feels more comfortable overall.
The seat itself is set at ADA comfort height, about 17.41 inches from floor to seat. That makes sitting down and standing up easier, especially if you have knee or back issues. It qualifies for accessible bathroom installations too. For hands-free use, the U8MAX is fully automatic. The lid opens when you approach and closes and flushes when you walk away. There is also a foot sensor for controling the seat, lid, and flush. The bidet functions include front wash, rear wash, and oscillating modes.
HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close Seat, High-Efficiency Supply, Standard Bathroom Toilet 12" Rough-In, White Finish
The HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close Seat is a modern, high-efficiency bathroom fixture designed for everyday comfort and ease. This one-piece toilet features a smooth, classic shape that fits well with craftsman, traditional, or contemporary styles. The dual flush system uses 1.1 or 1.6 gallons per flush, giving you the choice for light or heavy waste.
On average, it uses just 1.28 gallons per flush, which can save up to 16,500 gallons of water each year compared to older 3.5-gallon models. Performance is not sacrificed here—the MAP 800g siphon flush is quiet and powerful enough to clear waste completely. The fully glazed 2-inch trapway resists clogs, and the flapper-free design eliminates leaks. No flapper, no leaks, no worries.
Cleaning this toilet is straightforward.
The fully skirted trapway hides the plumbing and leaves no hard-to-reach corners or grooves. The self-cleaning materials help it stay fresh longer. When it is time to clean, you can easily reach every surface. The chair-height seat makes sitting down and standing up more comfortable for most adults.
One Piece Toilet Buying Guide
One piece toilets simplify cleaning with seamless designs; consider flushing power and bowl shape. You want a bathroom that feels easy to maintain, not a headache. These toilets eliminate teh gap between tank and bowl where grime loves to hide. Just wipe down one smooth surface and you’re done. No awkward crevices. No scrubbing with a toothbrush. Does that sound like a dream? It’s actually very doable.
But a good looking toilet isn’t enough. You need one that works hard for you. Flush performance matters. Nobody wants to flush twice. That wastes water and annoys everyone. Bowl shape also changes your daily experience. Elongated bowls offer more room but take up space. Round bowls fit tighter bathrooms better. Pick what fits your life, not just what looks nice.
Flushing Power Matters Most
A weak flush is a dealbreaker. Look for models with a powerful siphonic action. Some toilets use gravity alone, while others add pressure assist. Both can work well. Check the MaP score for solid waste removal. Anything above 600 grams is reliable. You want confidence that everything goes down smoothly the first time. No plungers needed.
Bowl Shape and Seat Height
Elongated bowls give you extra legroom. They feel more comfortable for adults. Round bowls save about two inches of space, great for small bathrooms. Seat height is another big deal. Comfort height bowls sit around 17 to 19 inches tall. They make sitting down and standing up easier. Standard height bowls are lower, around 15 inches. Think about who uses the toilet most. Taller people or anyone with knee issues will thank you for the taller option.
Surface and Cleaning Ease
Glazed surfaces repel dirt and stains. Some toilets have a special coating that stops waste from sticking. That means less scrubbing and less cleaner use. Check if the toilet has a skirted trapway. That hides the plumbing curve underneath. It makes mopping the floor a breeze. No awkward angles to work around. Your cleaning routine becomes faster and less gross.
Pick a one piece toilet that fits your space and habits. A little research now saves you frustration later. You deserve a toilet that works as hard as you do.
Frequently Asked Questions About One Piece Toilet
What is a one piece toilet?
A one piece toilet has the tank and bowl fused together. There is no seam or gap. This makes it easier to clean. You just wipe the whole surface. It also looks sleek and modern.
Are one piece toilets more expensive?
Yes, they usually cost more than two piece toilets. But you get a sturdy design. The price includes the seamless look and easier cleaning. It might be worth it for your bathroom.
How do I install a one piece toilet?
Installation is a bit trickyer than a two piece. The unit is heavier becuase it’s all one piece. You’ll need to lift and set it carefully. Most people hire a plumber. But if you are handy, you can do it yourself with help.
Is a one piece toilet more durable?
They are often more durable. There is no joint between the tank and bowl to leak. The ceramic is molded as one solid piece. This can last many years. Just handle it with care during installation.
Do one piece toilets clog less?
It depends on the model. Many one piece toilets have wider trap ways. This helps waste pass through easier. Look for a model with a good flush system. A powerful flush reduces clogs.
How do I clean a one piece toilet?
Cleaning is simpler. There are no crevices where dirt hides. You just wipe the entire exterior. Use a mild cleaner and a soft brush. The smooth surface stays clean longer.
Can I replace a two piece with a one piece?
Yes, you can. But check the rough-in measurement first. That is the distance from the wall to the floor bolts. Most toilets have a 12-inch rough-in. Measure yours to be sure the new one fits.
Are one piece toilets heavier?
Yes, they are generally heavier. This is because they are a single unit. You may need two people to move it. This weight also adds to the stability once installed.
Closing Thoughts
Say goodbye to hard-to-clean crevices with these seamless one piece toilets. You’ll save time on scrubbing and avoid teh frustration of hidden dirt. No more reaching into awkward gaps or worrying about mold buildup. The smooth, curved design makes wiping a breeze, and regular cleaning takes just minutes. Plus, the streamlined look gives your bathroom a tidy, modern feel. You deserve a toilet that works for you, not against you. These models offer reliable performance without the extra hassle. Choose one that fits your space and budget, and you’ll wonder why you didn’t switch sooner. Its a simple upgrade that makes daily life easier.
Think about how much easier your mornings will be with less cleaning to do. You get more time for other things you enjoy. The one piece toilet combines durability with ease of care, giving you a practical solution for your home. Whether you have a small bathroom or a large one, this design fits right in. You’ll appreciate the quiet, sturdy feel and the lack of hidden nooks. It’s a smart choice for anyone who values simplicity. So pick your favorite model and enjoy a cleaner, more relaxing bathroom experience from now on.