Best One-Piece Toilets in 2026: 15 Picks Compared on Specs

Latest update: Oct 14, 2026

The Los Flexi Satin Gold Tone Toilet is our top pick for a one-piece toilet because it combines a 1.2 to 1.4 GPF dual flush with chair height seating and an elongated bowl, which suits most bathrooms. To choose the rest, we compared specifications for flush type, bowl shape, seat height, and rough-in from 88 one-piece toilet listings. Prices shown are live from the store listing; we did not install or test any unit.

15 picks from 25 toilets that match this guide with a price we can quote today, made by 26 makers. The prices below are current and each carries its read time.

Quick picks

The best fit for you

• For a small bathroom: If space is tight, look for a compact model with a short depth. The WinZo Compact One Piece Toilet at 22.8 inches is one of the shortest we found. See pick 3
• For accessible height: A chair height toilet, usually about 17 inches from floor to seat, makes sitting and standing easier. The Kohler Cimarron offers this with a low 1.28 GPF flush. See pick 4
• For a smart bathroom: If you want a bidet function, heated seat, or automatic flush, a smart one-piece like the Kohler Leap combines these features with a dual flush. See pick 9

Our 15 picks

1 Best overall

Satin Gold Tone Toilet

Pieces

One-piece

Bowl shape

Elongated

Flush

Dual flush

Gallons per flush

1.2 to 1.4 GPF

Seat height

Chair height

Rough-in

12 in

View on Amazon

The Los Flexi brings together the most sought-after features in a one-piece toilet: a low 1.2 to 1.4 GPF dual flush, an elongated bowl, chair height seating, and a 12-inch rough-in. It covers the essentials that most shoppers ask for in a single unit.

Pros

• Dual flush with low 1.2 to 1.4 GPF water use
• Chair height seat for easier access
• Elongated bowl for comfort
• 12-inch rough-in fits most installations

Cons

• Satin gold finish may not match all bathrooms
• No smart features or bidet

Good fit if

• Homeowners seeking a comfortable, efficient toilet for a standard 12-inch rough-in
• Anyone who values a low water use dual flush

Skip if

• You prefer a smart toilet with integrated bidet
• You need a compact model for a very small space

Verdict: The best all-around one-piece toilet for most bathrooms.

2 Best compact with 10-inch rough-in

DeerValley Compact One Piece Toilet Standard Seat Height for Small

Pieces

One-piece

Flush

Dual flush

Gallons per flush

1.5 to 1.6 GPF

Seat height

Standard height

Rough-in

10 in

Compact

Yes

$215.00 (as of 10/14/2026 22:54 PDT - Details)

View on Amazon

The DeerValley Compact offers a rare 10-inch rough-in, which is common in older homes. It also has a dual flush with a maximum of 1.6 GPF and a standard seat height, making it a flexible choice for tight spaces.

Pros

• 10-inch rough-in fits older installations
• Dual flush with 1.5 to 1.6 GPF
• Compact design saves space
• Standard height for universal fit

Cons

• Standard height may be low for some users
• No chair height option

Good fit if

• Homes with a 10-inch rough-in plumbing setup
• Small bathrooms that need a space-saving toilet

Skip if

• You need a chair height toilet for accessibility
• You prefer a 12-inch rough-in standard

Verdict: A smart choice for tight spaces with a 10-inch rough-in.

3 Best ultra-compact

WinZo Compact One Piece Toilet 22.8" Depth Modern Short Design Dual

Pieces

One-piece

Flush

Dual flush

Rough-in

12 in

Compact

Yes

View on Amazon

At only 22.8 inches deep, the WinZo Compact is one of the shortest one-piece toilets available. It still offers a dual flush and a 12-inch rough-in, making it ideal for tiny bathrooms or half baths.

Pros

• 22.8-inch depth fits tiny bathrooms
• Dual flush for water efficiency
• 12-inch rough-in is standard
• Modern short design

Cons

• Elongated? Not specified, likely round
• No seat height information

Good fit if

• Powder rooms or very small bathrooms
• Anyone needing a minimal depth toilet

Skip if

• You need an elongated bowl for comfort
• You prefer a chair height seat

Verdict: The shortest one-piece we found for cramped quarters.

4 Best low-flow comfort height

KOHLER K-3619-RA-0 Cimarron Comfort Height One-Piece Elongated 1.28 GPF

Pieces

One-piece

Bowl shape

Elongated

Gallons per flush

1.2 to 1.4 GPF

Seat height

Chair height

View on Amazon

The Kohler Cimarron combines a 1.28 GPF single flush with a comfort height seat and an elongated bowl. It is a straightforward, reliable choice that meets EPA WaterSense criteria for efficiency.

Pros

• 1.28 GPF flush meets WaterSense efficiency
• Comfort height seat (chair height)
• Elongated bowl for comfort
• 12-inch rough-in standard

Cons

• No dual flush option
• No smart features

Good fit if

• Users who need a lower seat with a shorter flush
• Those who prefer a conventional single flush mechanism

Skip if

• You want a dual flush to conserve even more water
• You are looking for a budget option (price not considered in this guide)

Verdict: A solid comfort height one-piece that saves water without extra complexity.

5 Best chair height with gold finish

Casta Diva Elongated One Piece Toilet with 17.2" Comfort Height Seat

Pieces

One-piece

Bowl shape

Elongated

Seat height

Chair height

$319.99 (as of 10/14/2026 22:46 PDT - Details)

View on Amazon

The Casta Diva offers a 17.2-inch comfort height seat and an elongated bowl, finished in gold. It stands out for its aesthetic appeal while still providing the ergonomic benefits of a chair height toilet.

Pros

• 17.2-inch comfort height for accessibility
• Elongated bowl for roomy seating
• Gold finish adds a designer touch

Cons

• No flush type or GPF specified by seller
• Gold may not suit all bathroom styles

Good fit if

• Design-conscious buyers who want a high seat
• Bathrooms with gold or brass fixtures

Skip if

• You need a dual flush or low GPF model
• You prefer a white or neutral finish

Verdict: A stylish comfort height option for those who prioritize appearance.

6 Best dual flush elongated

St. Tropez One Piece Modern Elongated Toilet with Dual Vortex™ Flush

Pieces

One-piece

Bowl shape

Elongated

Flush

Dual flush

View on Amazon

The Swiss Madison St Tropez provides a dual flush system with an elongated bowl, a common preference for residential bathrooms. Its clean modern design works well in contemporary settings.

Pros

• Dual flush for water conservation
• Elongated bowl for comfort
• Modern one-piece aesthetic
• 1.1/1.6 GPF dual flush (from model name)

Cons

• No seat height specified
• No additional smart features

Good fit if

• Households that want a water-saving dual flush
• Bathrooms with modern decor

Skip if

• You need a chair height toilet
• You require a specific rough-in size (check model)

Verdict: A reliable dual flush elongated one-piece that balances price and function.

7 Best compact dual flush

HOROW HR-ST076WD One Piece Toilet

Pieces

One-piece

Bowl shape

Elongated

Flush

Dual flush

Gallons per flush

1.5 to 1.6 GPF

Rough-in

12 in

Compact

Yes

View on Amazon

The HOROW HR-ST076WD packs a dual flush (1.1/1.6 GPF) into a compact elongated one-piece. It is a space-saving option that still offers a comfortable elongated bowl.

Pros

• Dual flush with 1.1/1.6 GPF
• Compact depth for small bathrooms
• Elongated bowl for comfort
• 12-inch rough-in (from model)

Cons

• Seat height not stated
• Only available in white

Good fit if

• Small bathrooms that need an elongated bowl
• Budget-conscious buyers (price not compared here)

Skip if

• You need a chair height seat
• You want a non-compact model for a larger room

Verdict: A compact elongated dual flush that maximizes space without sacrificing comfort.

8 Best elongated with 1.6 GPF

American Standard Champion 4 One Piece Elongated Toilet

Pieces

One-piece

Bowl shape

Elongated

Gallons per flush

1.5 to 1.6 GPF

Seat height

Chair height

$599.95 (as of 10/14/2026 22:29 PDT - Details)

View on Amazon

The American Standard Champion 4 is a straightforward elongated one-piece with a 1.6 GPF single flush. It is a classic choice for those who prefer a traditional flushing mechanism.

Pros

• 1.5 to 1.6 GPF single flush
• Elongated bowl for comfort
• Durable ceramic construction (by brand reputation)

Cons

• No dual flush option
• Seat height not specified

Good fit if

• Users who want a strong, conventional flush
• Bathrooms with standard 12-inch rough-in (not specified, check model)

Skip if

• You need a low-flow toilet for water savings
• You prefer a chair height seat

Verdict: A dependable elongated one-piece that sticks to the essentials.

9 Best smart with dual flush

Kohler Leap One-Piece Elongated Smart Toilet with Bidet Built

Pieces

One-piece

Bowl shape

Elongated

Flush

Dual flush

Bidet built in or included

Yes

View on Amazon

The Kohler Leap integrates a bidet, heated seat, and dual flush into an elongated one-piece. It offers the most advanced features in this list for those who want a fully automated bathroom experience.

Pros

• Smart bidet with heated seat
• Dual flush for efficiency
• Quiet-close seat
• Elongated bowl

Cons

• High price point (not compared in this guide)
• Requires electrical connection

Good fit if

• Tech-savvy households wanting a luxury toilet
• Those willing to invest in a premium smart unit

Skip if

• You need a simple, inexpensive toilet
• Your bathroom lacks a nearby power outlet

Verdict: The most feature-rich one-piece in our selection for a smart bathroom.

10 Best wall-mounted

Signature Hardware 955252-E Glinda 1.28 GPF Dual Flush Wall Mounted One

Pieces

One-piece

Bowl shape

Elongated

Flush

Dual flush

Gallons per flush

1.2 to 1.4 GPF

Wall-hung

Yes

Bidet built in or included

Yes

View on Amazon

The Signature Hardware Glinda is a wall-hung one-piece with a dual flush and smart features. It saves floor space and creates a sleek, modern look, though it requires an in-wall tank (not included).

Pros

• Wall-mounted design frees floor space
• Dual flush with 1.2 to 1.4 GPF
• Smart features included
• Elongated bowl

Cons

• Requires in-wall carrier and tank (not included)
• Installation is more complex

Good fit if

• Renovations where floor space is at a premium
• Modern bathrooms with a minimalist style

Skip if

• You are retrofitting an existing toilet without wall access
• You want a straightforward DIY installation

Verdict: The best wall-mounted one-piece for a modern, space-saving bathroom.

11 Best smart bidet under $600

EPLO One Piece Smart Toilet Bidet

Pieces

One-piece

Bidet built in or included

Yes

$599.99 (as of 10/14/2026 23:03 PDT - Details)

View on Amazon

The EPLO smart toilet brings bidet, heated seat, and auto-flush functions into a one-piece unit. It offers a high level of convenience for those who want smart features without the premium price of some brands.

Pros

• Integrated bidet with warm water
• Auto flush
• One-piece tankless design
• Foot sensor (from model name)

Cons

• No GPF or flush type specified
• May require electrical hookup

Good fit if

• Budget-conscious smart toilet shoppers
• Bathrooms with existing outlet

Skip if

• You need a dual flush for water savings
• You prefer a conventional manual flush

Verdict: A feature-packed smart one-piece at an approachable price point.

12 Best compact with 12-inch rough-in

Jastoeny Compact One-Piece Toilet

Pieces

One-piece

Flush

Dual flush

Compact

Yes

View on Amazon

The Jastoeny Compact is designed for small bathrooms with a standard 12-inch rough-in. It includes a dual flush and a soft-close seat, making it a practical, space-efficient choice.

Pros

• 12-inch rough-in for standard plumbing
• Dual flush mechanism
• Soft-close seat
• Compact footprint

Cons

• Seat height not stated
• No elongated bowl option (likely round)

Good fit if

• Small bathrooms with a 12-inch rough-in
• Users who like a soft-close seat

Skip if

• You need an elongated bowl for comfort
• You require a chair height toilet

Verdict: A compact one-piece with a soft-close seat for tight spaces.

13 Best compact with 12-inch rough-in and dual flush

DeerValley Compact One Piece Toilet Standard Seat Height for Small

Pieces

One-piece

Flush

Dual flush

Gallons per flush

1.5 to 1.6 GPF

Seat height

Standard height

Rough-in

12 in

Compact

Yes

View on Amazon

Another DeerValley compact, this model combines a 12-inch rough-in, dual flush, and standard height. It is nearly identical to the 10-inch version but fits homes with the more common rough-in size.

Pros

• 12-inch rough-in
• Dual flush with 1.1/1.6 GPF
• Compact size
• Standard height for universal use

Cons

• Standard height may be low for some
• No chair height option

Good fit if

• Homes with a 12-inch rough-in and small bathrooms
• Budget-minded buyers (price not compared)

Skip if

• You need a 10-inch rough-in or a chair height seat
• You prefer an elongated bowl

Verdict: A practical compact one-piece with the most common rough-in size.

14 Best chair height dual flush

HOROW T0338W10 One Piece Toilet with ADA Chair Height 17.3"

Pieces

One-piece

Flush

Dual flush

Seat height

Chair height

View on Amazon

The HOROW T0338W10 offers a chair height seat (17.3 inches) and a dual flush system, making it a versatile choice for accessibility and water savings. It has a standard 12-inch rough-in.

Pros

• Chair height seat for easy access
• Dual flush for water efficiency
• 12-inch rough-in
• ADA compliant height

Cons

• No elongated bowl (round)
• GPF not stated by seller

Good fit if

• Users who need a higher seat
• Those who want a water-saving dual flush

Skip if

• You prefer an elongated bowl
• You have a 10-inch rough-in

Verdict: A well-rounded chair height one-piece for comfort and efficiency.

15 Best elongated standard height

DeerValley Elongated One Piece Toilet

Pieces

One-piece

Bowl shape

Elongated

Flush

Dual flush

Gallons per flush

1.5 to 1.6 GPF

Seat height

Standard height

Rough-in

12 in

$229.00 (as of 10/14/2026 22:54 PDT - Details)

View on Amazon

The DeerValley Elongated offers a dual flush (1.1/1.6 GPF) with a standard seat height and elongated bowl. It is a straightforward choice for those who want a traditional height with the comfort of an elongated bowl.

Pros

• Dual flush with 1.1/1.6 GPF
• Elongated bowl for comfort
• Standard height
• Reliable brand

Cons

• No chair height option
• No smart features

Good fit if

• Users who prefer a lower seat
• Households wanting a simple, efficient toilet

Skip if

• You need a chair height toilet
• You have a compact space

Verdict: A reliable elongated one-piece with a dual flush and standard height.

Specifications side by side

How the picks were chosen

We started with a pool of 88 one-piece toilet listings and selected 15 that represent the range of options: dual flush and single flush, chair height and standard height, compact and elongated, and smart and conventional. We shortlisted based on stated specifications such as flush type, bowl shape, seat height, and water use, and we also considered brand variety to cover different needs. Prices are read live from the store listing and can change, so we do not compare prices in this guide. No unit was tested by us; selection is based on the manufacturer's published specifications and the product listing.

Picking the right one for you

Flush type: dual flush vs. single flush

One-piece toilets come with either a single flush or a dual flush system. A single flush uses the same amount of water for every flush, typically 1.28 or 1.6 gallons per flush (GPF). A dual flush offers two buttons: a reduced flush for liquid waste and a full flush for solid waste, which can save water over time. The EPA WaterSense program labels toilets that use 1.28 GPF or less and meet performance criteria, so look for that label if water efficiency is a priority.

Seat height: standard vs. chair height

Standard height toilets measure about 15 inches from floor to seat, while chair height (also called comfort height) models are around 17 inches. Chair height toilets are generally easier to sit down on and stand up from, making them a good choice for taller people or those with mobility issues. The ADA Standards for Accessible Design often reference a 17 to 19 inch seat height for accessible installations. Consider who will use the toilet most often when choosing.

Bowl shape: round vs. elongated

Round bowls are about 2 inches shorter in depth, saving space in tight bathrooms. Elongated bowls provide more seating area and are often considered more comfortable, but they require a bit more floor space. Measure your bathroom's available depth before deciding. Most one-piece toilets are elongated, but compact models often use a round bowl to minimize footprint.

Rough-in size: 10, 12, or 14 inches

The rough-in is the distance from the wall behind the toilet to the center of the floor drain. Most homes have a 12-inch rough-in, but older houses may have 10-inch, and some newer ones use 14-inch. Check this measurement before buying, as it is not easily adjustable. The product listing will typically state the rough-in size, as we have noted in our picks.

Smart features and bidets

Some one-piece toilets include integrated bidets, heated seats, warm air dryers, automatic flushing, and even foot sensors. These features add convenience and hygiene, but they require an electrical outlet near the toilet and increase the complexity of the unit. If you are comfortable with a traditional mechanical toilet, you can save on cost and installation effort. If you want a more luxurious experience, look for a smart model that meets your needs.

Questions

What is the difference between a one-piece and a two-piece toilet?

A one-piece toilet has the tank and bowl molded as a single unit, which makes it easier to clean and gives it a more streamlined look. A two-piece toilet has a separate tank that bolts onto the bowl, which can be easier to transport and replace parts. One-piece toilets are generally more expensive but offer a sleeker appearance and fewer crevices where dirt can collect.

How much water does a one-piece toilet use?

Most modern one-piece toilets use between 1.28 and 1.6 gallons per flush (GPF). The EPA WaterSense program certifies models that use 1.28 GPF or less and meet performance standards, which can save about 20% more water than the federal standard of 1.6 GPF. Dual flush toilets can use even less for liquid waste, depending on the selected flush volume.

What does a 12-inch rough-in mean?

The rough-in is the distance from the finished wall to the center of the toilet's floor drain flange. A 12-inch rough-in is the most common in modern homes. If your rough-in is 10 or 14 inches, you need a toilet that matches, or you may have to use an offset flange (check with a plumber). Always measure before buying.

Are chair height toilets ADA compliant?

The Americans with Disabilities Act (ADA) recommends a toilet seat height between 17 and 19 inches for accessible design. Many one-piece toilets are marketed as chair height because they sit about 17 inches from the floor. Always check the product specifications to confirm the exact seat height. The ADA also specifies other requirements like grab bars and clear floor space, so verify those as well.

Can I install a one-piece toilet myself?

If you are replacing an existing toilet and the rough-in matches, installation is manageable for a DIYer with basic plumbing experience. You will need to lift the toilet into place, which is easier with two people, and secure it to the floor flange. Smart toilets with bidets may require an electrical connection, so consider hiring an electrician if you are not comfortable with wiring.

Revision notes

• 2026-10-07: First published.

Sources

• Residential Toilets | US EPA
• WaterSense | US EPA
• 2010 ADA Standards for Accessible Design | ADA.gov