Choosing the best one-piece round toilet means balancing bathroom space, seat height, water use, and how easy the toilet will be to install and clean. The options below include compact designs, chair-height seats, and dual-flush models. Before you buy, measure your rough-in and check the manufacturer’s fit notes—especially the water-valve clearance—so the toilet works with your bathroom.
Table of Contents
Quick Comparison
| Toilet | Flush | Seat height / bowl | Standout feature |
|---|---|---|---|
| BAYROLL One Piece Sleek Modern Toilet | Dual flush, 0.9/1.28 GPF | 17-inch seat; bowl shape not specified in supplied details | Short 25.5-inch depth and MAP 1000g rating |
| SLEKVERSA Round One Piece Toilet | 1.28 GPF | 17-inch seat; round | Side-press flush and soft-close seat |
| Swiss Madison Sublime II | Dual flush, 1.1/1.6 GPF | Standard height; round | Skirted trapway and quick-release seat |
| Miuara Compact Skirted Tall Toilet | Dual flush, 1.0/1.28 GPF | 19-inch seat; round | Tall seat and tornado flush |
| HOMLYLINK Compact Skirted Tall Toilet | Dual flush, 1.0/1.28 GPF | 17.5-inch seat; round | Compact dimensions and included installation hardware |
Availability note: The supplied product information marks the SLEKVERSA and Miuara models as unavailable. Check their listings for current status. Product details and availability can change.
Our Picks: Best One Piece Round Toilet reviews
1. BAYROLL One Piece Toilet: A Space-Saving Dual-Flush Option
The BAYROLL is a one-piece, fully skirted toilet with a listed depth of 25.5 inches, width of 14.7 inches, and height of 27 inches. Its shorter front-to-back measurement may help in a small bathroom, apartment, or secondary bath where every inch matters. The listing describes a wider seat, a 17-inch chair-height seat, and a soft-close, quick-release seat for easier cleaning.
Its dual-flush system uses 0.9 GPF for liquid waste and 1.28 GPF for solid waste. The manufacturer also lists a MAP 1000g score and a siphon flush. The included hardware covers items such as the bolt kit, hinge kit, water-supply connector, and wax ring, but not the water-supply pipe or floor flange.
There are two important fit checks. It is designed for a 12-inch rough-in, and the listing gives specific clearance requirements for the angle valve: the horizontal distance from the valve to the waste-pipe center should be greater than 8 inches, or the valve should protrude less than 3 inches. Also, the supplied details do not confirm the bowl shape, so verify that it is round before ordering if that is a must-have.
Pros:
- Short 25.5-inch depth suits tighter spaces.
- Dual flush uses 0.9 or 1.28 GPF.
- Skirted body and quick-release seat simplify cleaning access.
- Includes a wax ring and several installation parts.
Cons:
- The supplied product details do not specify the bowl shape.
- Water-supply pipe and floor flange are not included.
Verdict: Choose the BAYROLL if a shallow footprint and low-volume dual flush are priorities, but confirm the bowl shape and angle-valve fit before buying.
2. SLEKVERSA Round Toilet: A Straightforward Chair-Height Design
This SLEKVERSA model pairs a round bowl with a one-piece ceramic body and a 17-inch seat height. Its listed features are simple: a 1.28 GPF side-press flush, a siphon-flush system, and a polypropylene soft-close seat. The easy-clean surface and smooth exterior are intended to reduce the hard-to-reach areas found around exposed trapways.
A 17-inch seat can be more convenient than standard-height seating for some people, including taller users or those who find a lower seat difficult to use. However, seat height is only one part of fit; consider the user’s needs and the toilet’s full dimensions before choosing it. The supplied product details do not include the toilet’s depth, width, rough-in, or installation inclusions, so check the listing for those measurements.
The product information supplied for this guide marks this model as unavailable. If it becomes available, compare its confirmed dimensions and installation requirements with the other options before placing an order.
Pros:
- Round bowl can suit bathrooms where a compact bowl profile is preferred.
- 17-inch seat height is designed for chair-height comfort.
- Soft-close seat and one-piece surface support easier routine care.
- Uses 1.28 GPF per flush.
Cons:
- Marked unavailable in the supplied product information.
- Rough-in, dimensions, and included installation parts are not specified in the supplied details.
Verdict: Consider the SLEKVERSA if it becomes available and its full measurements match your bathroom; its listed features are appealing, but key fit details need confirmation.
3. Swiss Madison Sublime II: A Compact Round Bowl with a Skirted Trapway
The Swiss Madison Sublime II is a one-piece toilet with a round bowl and standard 12-inch rough-in. Its skirted trapway hides the exposed curves of the plumbing, giving the exterior a smoother look and making the sides easier to wipe. The ceramic is described as non-porous and scratch-resistant, while a fully glazed trapway is intended to keep the passage smooth.
This model has a dual-flush button with a 1.1 GPF light flush and a 1.6 GPF full flush. That gives you two flush choices, but its full-flush volume is higher than the 1.28 GPF options in this guide. The seat is soft-close and quick-release, so you can remove it for more thorough cleaning.
The listed height is in the standard 15-to-17-inch range, rather than a clearly stated 17-inch seat height. It may be a better fit for shoppers who prefer standard-height seating and want a compact round bowl than for those seeking a taller chair-height toilet. The product information mentions 3-inch access holes for installation, so review the installation instructions and your existing setup before purchasing.
Pros:
- Round bowl and standard 12-inch rough-in.
- Skirted trapway creates a smoother exterior for cleaning.
- Quick-release, soft-close seat supports easier seat removal and quiet closing.
- Dual flush offers a lower-volume option for light flushing.
Cons:
- The full flush uses 1.6 GPF, more than the 1.28 GPF models here.
- Standard-height seating may not suit shoppers looking for a taller seat.
Verdict: The Sublime II is a strong fit for shoppers who want a round, skirted one-piece toilet and standard-height seating, but its full-flush volume is worth weighing against newer low-volume options.
4. Miuara Compact Tall Toilet: A 19-Inch Seat for Easier Sitting and Standing
The Miuara is a round, one-piece toilet designed around a notably tall 19-inch seat. Its listed dimensions are 24.6 inches deep, 14 inches wide, and 30 inches high, making it relatively compact in footprint while providing a taller place to sit. The height may be helpful for some seniors, taller users, or people who find lower seating uncomfortable, though a 19-inch seat may feel too high for other household members.
It has a 1.0/1.28 GPF dual-flush system and a tornado-style flush. The listing also states that it has a fully glazed trapway and a skirted exterior, which can make the outside easier to clean. It is designed for a floor-mounted installation with an approximately 12-inch rough-in. The supplied details list MAP, cUPC, EPA, and CEC certifications; confirm the specific certification and fit information on the product listing before buying.
The supplied product information marks the Miuara as unavailable. Its unusually tall seat is also a more specialized choice than a standard 17-inch model, so it is important to consider who will use the bathroom regularly and whether the height feels comfortable for everyone.
Pros:
- 19-inch seat may help users who prefer a higher sitting position.
- Compact listed footprint with a 24.6-inch depth.
- Dual flush uses 1.0 or 1.28 GPF.
- Skirted body and glazed trapway support easier cleaning.
Cons:
- Marked unavailable in the supplied product information.
- The 19-inch seat may be too tall for some users.
Verdict: If it becomes available, the Miuara is worth considering when a 19-inch seat is the main need, but choose a lower model if household members may find that height awkward.
5. HOMLYLINK Compact Toilet: A Round Bowl with a 17.5-Inch Seat
The HOMLYLINK is a skirted, one-piece round toilet with a listed seat height of 17.5 inches and a 16.75-inch bowl height. It measures 24.5 inches deep, 14 inches wide, and 28 inches high. Those dimensions and its round seat make it a practical option to consider for a smaller bathroom, though you should still compare its full footprint with the space available around your current toilet.
Its dual-flush system uses 1.0 or 1.28 GPF, and the listing gives it a MAP score of 1000g. The toilet comes with a soft-close round seat, wax ring, and installation hardware. Its 12-inch rough-in is a common layout, but measure from the finished wall to the center of the floor outlet to confirm your bathroom matches.
The product information also lists EPA, cUPC, and CEC certification, along with a two-year limited warranty. Because installation requirements can vary, check which hardware is included and whether you need to purchase any additional parts before scheduling installation. The higher seat is a useful feature for some people, but the 17.5-inch height may not be ideal for every user.
Pros:
- Compact 24.5-inch depth and 14-inch width.
- Round bowl with a 17.5-inch seat height.
- Dual flush uses 1.0 or 1.28 GPF.
- Wax ring and installation hardware are included.
Cons:
- The taller seat may not suit every user.
- Confirm included parts and installation needs for your specific setup.
Verdict: The HOMLYLINK is a well-rounded choice if you want a compact round toilet, a higher seat, and dual-flush options in one package.
How to Choose a One-Piece Round Toilet
Measure the rough-in before choosing a model
The rough-in is the distance from the finished wall behind the toilet to the center of the floor drain. Several models in this guide call for a 12-inch rough-in, but do not assume that your bathroom has one. Measure carefully, accounting for baseboards, and compare the measurement with the manufacturer’s installation instructions. A mismatch can prevent the toilet from sitting in the right position.
Check the toilet’s full footprint
Depth and width affect how much room remains in front of the toilet and beside it. A shorter toilet may be useful in a tight bath, but look at the complete dimensions rather than depth alone. Also check the door swing, nearby vanity, and any required clearance around the toilet before ordering.
Choose a seat height that suits its users
Standard-height seating may work well for many households, while a chair-height seat can make sitting down and standing up easier for some people. The options here range from standard height to a 19-inch seat. Consider everyone who will use the bathroom: a taller seat can be more convenient for one person and less comfortable for another. Seat height and bowl height are not always the same measurement, so check which figure the listing gives.
Compare flush volume and flush controls
Dual-flush toilets let you choose between a lower-volume flush and a fuller flush. Compare both numbers, not just the lower one. The models in this guide range from 0.9/1.28 GPF to 1.1/1.6 GPF. A single-flush toilet uses the same amount each time, while control placement also varies: some models use top buttons and others use a side press.
Look at cleaning features and seat access
A one-piece body has fewer joints between the tank and bowl than a two-piece design. A skirted exterior can also hide the trapway’s outer curves, which may make the sides easier to wipe. A quick-release seat can be removed for more complete cleaning around the hinges. These features help with routine care, but they do not replace regular cleaning.
Confirm valve clearance and installation details
Toilet fit depends on more than the rough-in. Check whether the water-supply valve will clear the toilet’s side or skirt. The BAYROLL, for example, lists specific angle-valve clearance requirements. Review the included parts as well: a wax ring and mounting hardware may be included, while other items such as the water-supply pipe or floor flange may need to be supplied separately. If you are not experienced with toilet installation, the product information recommends using a plumber.
Verify product availability and warranty information
Availability can change, and the supplied product data marks two models in this guide as unavailable. Check the listing before making a decision. For any toilet, also confirm the warranty terms, installation instructions, and exact measurements on the product page before ordering.
Frequently Asked Questions
What is a one-piece toilet?
A one-piece toilet has its tank and bowl joined as a single unit. This design creates fewer seams between those parts than a two-piece toilet and can provide a smoother exterior to clean.
Is a round toilet a good choice for a small bathroom?
A round bowl can be a useful option when you want a more compact bowl shape, but the bowl shape alone does not determine the toilet’s footprint. Compare the model’s full depth and width with your bathroom measurements.
What does a 12-inch rough-in mean?
It refers to the distance from the finished wall to the center of the floor outlet. Measure your bathroom before buying, since a toilet with the wrong rough-in may not fit the existing drain location.
Is a 17-inch seat considered chair height?
Several listings describe a 17-inch seat as chair height. The right height depends on the people using the toilet, and listed seat height can differ from bowl height. Check the measurement details for the exact model.
Are dual-flush toilets always more water-efficient?
Dual-flush models provide a lower-volume option for some flushes, but their water use varies. Compare both GPF figures and consider how the toilet will be used in your household.
Are the BAYROLL and HOMLYLINK toilets confirmed to have round bowls?
The supplied details clearly identify the HOMLYLINK as having a compact round seat. The supplied BAYROLL details do not specify its bowl shape, so confirm that information on the product listing before buying if a round bowl is essential.
Final Recommendation
For a compact round toilet with a taller seat and dual-flush controls, the HOMLYLINK offers a useful mix of listed features, dimensions, and included installation parts. The Swiss Madison Sublime II is a better match if you prefer standard-height seating and a skirted trapway. The BAYROLL stands out for its short depth and low-volume flush options, but its bowl shape and angle-valve clearance need careful checking. Before choosing any model, verify the rough-in, measurements, and current availability on its product listing.
