• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
Logo of "Toiletable" with an illustration of a toilet and a sparkling star on the tank.

Toiletable

Your Trustworthy Toilet Guide

  • Home
  • Toilet Guides
    • Fix & Repair
      • Fixing a Toilet (Master Guide)
      • Fix a Running Toilet
      • Toilet Leak Repair
      • Fix a Toilet Chain
      • Replace a Flapper
      • Fix a Plastic Flapper
      • Fix Wax Rings
      • Double Flush Repair
      • Adjust a Toilet Float
      • Empty a Toilet Bowl
      • Rusted Tank Bolts Removal
      • Toilet Gurgling Fix
      • Shutoff Water Valve Fix
      • Fix Leaking from Base
      • Fix a Wobbly Toilet
      • Flushing without Water
      • Toilet Repair Costs
    • Cleaning
      • Cleaning a Toilet
      • Homemade Cleaning Recipes
      • Cleaning Mixtures
      • Disinfecting Item that Fell into Toilet
      • Clean Bowl Ring
      • Brown Water in Tank
    • Clogs
      • Unclog a Toilet
      • Plunging a Toilet
      • Remove Poop Clogs
      • Using a Toilet Snake
      • Never Flush Things
    • Installations
      • Toilet Installation
      • Toilet Seat Installation
      • Bidet Seat Installation
      • Toilet Flange Installation
      • Basement Toilet Installation
    • Measuring
      • Toilet Measuring
      • Toilet Seat Measuring
  • Brands
    • American Standard Toilets
      • American Standard ActiClean
      • American Standard Cadet 3
      • American Standard Cadet Pro
      • American Standard Champion 4
      • American Standard H2Option
      • American Standard Heritage
      • American Standard Boulevard
      • American Standard Fairfield
      • American Standard Colony
      • American Standard Edgemere
      • American Standard Studio
    • Kohler Toilets
      • Kohler Highline
      • Kohler Santa Rosa
      • Kohler San Raphael
      • Kohler Memoirs
      • Kohler Cimarron
      • Kohler Wellworth
      • Kohler Corbelle
      • Kohler Betello
      • Kohler Devonshire
      • Kohler Adair
      • Kohler Kathryn
      • Kohler Harken
      • Kohler Reach
      • Kohler Persuade
    • TOTO Toilets
      • TOTO Nexus
      • TOTO Drake
      • TOTO Ultramax-II
      • TOTO Supreme
      • TOTO Aquia IV Washlet
      • TOTO Washlet
      • TOTO Aimes
      • TOTO Entrada
    • Gerber Toilets
    • Swiss Madison Toilets
    • WoodBridge Toilets
    • Mansfield Toilets
    • Winzo Toilets
    • Icera Toilets
    • SaniFlo Toilet
  • Types
    • Flush Types
      • Flushing Toilets
      • Single Flush Toilets
      • Dual Flush Toilets
      • Pressure Assist Toilets
      • Quiet Toilets
      • Macerating Toilets
    • Shape
      • One Piece Toilets
      • Two Piece Toilets
      • Elongated Toilets
      • Round Toilets
      • Corner Toilets
      • Square Toilets
    • Style
      • Exposed Trapway
      • Skirted Trapway
      • Comfort Height
      • Wall Mounted
      • Tankless Toilets
    • Rough-in
      • 10-Inch Rough-In
      • 12-inch Rough-In
      • 14-inch Rough-In
      • 24-Inch Depth
    • Self-Cleaning Toilets
    • ADA Toilets
    • Smart Toilets
    • Compact Toilets
    • Portable Toilets
    • RV Toilets
    • WaterSense Certified
  • Accessories
    • Toilet Seats
      • Padded Seats
      • Heated Seats
      • Bidet Seats
      • Seat Risers
      • Duravit Seats
    • Handicap
      • Handicap Accessories
      • Grab Bars
    • Plungers
    • Brushes
    • Cleaners
      • Septic Tank Treatments
      • Bowl Cleaners
      • Drain Cleaners
    • Toilet Paper
      • RV Toilet Paper
      • Toilet Paper for Septic Tanks
    • Bathroom
      • Bathroom Heaters
      • Towel Warmers
    • Fill Valves
  • Resources
    • General Knowledge
      • Toilet Weight
      • Toilet Bowl Glazes
      • Water Level in Bowl
      • Keeping Seat Up
      • Toilet Vent Pipes
      • Human & Fertilizer
    • Comparison Guides
      • 1.28 vs. 1.6 GPF
      • Single vs. Dual Flush
      • Exposed vs. Concealed Trapways
      • Round vs. Elongated
      • Sink vs. Toilet Plungers
      • Comfort vs. Standard Height
      • Leach Field vs. City Sewers
      • Canister Flush vs. Flapper
      • Wood vs. Plastic Seats
      • Bidet vs. Toilet Paper
    • Water Saving Guides
      • Toilet Water Usage
      • MaP Flush Scores
    • Calculators
  • About Us
    • Affiliate Disclaimer
    • Privacy Policy
    • Contact Us

One-Piece Toilets with Seamless Design | 10 Reviews

Last updated: Apr 17th, 2025 by Katie Powell

 Note:    We’re supported by our readers. We earn a commission from product purchases using affiliate links on our site. You help keep us growing! 

One-piece toilets are becoming more and more popular as they offer a sleek design that’s both functional and aesthetically pleasing. One-piece toilets are much easier to clean and have a lower risk of leaking than two-piece toilets. 

One-piece toilets has the same features as their two-piece counterparts and do not always cost more. So, why are they becoming more popular? And what are some advantages?

Below we share some considerations when looking for a new one-piece toilet, and our top ranked picks!

Favorite Picks

  • Editor’s Choice:  Kohler Veil
  • Runner Up:  TOTO Eco Ultramax
  • Most Water Efficient:  TOTO Neorest
  • Highest Flush Score:  American Standard Champion 4
  • Most Reviewed:  Kohler Santa Rosa
  • Review Champion:  WoodBridge T-0001-CH

One-Piece Toilets Explained

✓ Easier to Clean

To start, they have no crevices or joints, one-piece toilets have no place for dirt or bacterial buildup between seams on their exterior, which is a big upside.

They are much easier to clean without needing to wipe between seams .

✓ Lower Chances of Leaking

A single piece construction means less places to leak. The tank and bowl are seamless and not joined together by bolts, where leak could become a possibility.

Overtime bolts could become rusty or the seal between the tank and bowl rots, which could result in a leak. 

✓ Smaller Fit

One-piece models are often smaller, making them ideal for compact bathrooms.

Plus, they have a sleeker design that fits well with modern bathrooms. Most homeowners will consider them for half bathrooms.

 

Top Toilets with One-Piece Design (Compared)

Kohler Veil
TOTO Neorest
American Standard Champion 4
WoodBridge T-0001-CH
Kohler Santa Rosa
TOTO Eco Ultramax
Rating:
-
-
-
-
-
-
# of Reviews:
-
-
-
-
-
-
Bowl Shape:
‎Elongated
Elongated
Elongated
Elongated
Elongated
Elongated
One-Piece Toilet:
Dimensions:
26-1/8" x 17-1/4" x 21-7/16"
31-7/16" x 17-5/8" x 20-3/4"
29-3/4" x 17-3/4" x 29-1/2"
28-1/2" x 14-1/2" x 27-1/2"
27-3/4" x 18-3/4" x 28-3/16"
28-3/16" x 16-5/8" x 29-1/8"
ADA Compliant?
Water Consumption:
0.8 / 1.28 GPF
0.8/1.0 GPF
1.6 GPF
1.0 / 1.28 GPF
1.28 GPF
1.28 GPF
Cost Rating:
🚽🚽🚽🚽
🚽🚽🚽🚽
🚽🚽🚽
🚽🚽
🚽🚽🚽
🚽🚽🚽
Check Price
Check Price
Check Price
Check Price
Check Price
Check Price
Kohler Veil
Rating:
-
# of Reviews:
-
Bowl Shape:
‎Elongated
One-Piece Toilet:
Dimensions:
26-1/8" x 17-1/4" x 21-7/16"
ADA Compliant?
Water Consumption:
0.8 / 1.28 GPF
Cost Rating:
🚽🚽🚽🚽
Check Price
TOTO Neorest
Rating:
-
# of Reviews:
-
Bowl Shape:
Elongated
One-Piece Toilet:
Dimensions:
31-7/16" x 17-5/8" x 20-3/4"
ADA Compliant?
Water Consumption:
0.8/1.0 GPF
Cost Rating:
🚽🚽🚽🚽
Check Price
American Standard Champion 4
Rating:
-
# of Reviews:
-
Bowl Shape:
Elongated
One-Piece Toilet:
Dimensions:
29-3/4" x 17-3/4" x 29-1/2"
ADA Compliant?
Water Consumption:
1.6 GPF
Cost Rating:
🚽🚽🚽
Check Price
WoodBridge T-0001-CH
Rating:
-
# of Reviews:
-
Bowl Shape:
Elongated
One-Piece Toilet:
Dimensions:
28-1/2" x 14-1/2" x 27-1/2"
ADA Compliant?
Water Consumption:
1.0 / 1.28 GPF
Cost Rating:
🚽🚽
Check Price
Kohler Santa Rosa
Rating:
-
# of Reviews:
-
Bowl Shape:
Elongated
One-Piece Toilet:
Dimensions:
27-3/4" x 18-3/4" x 28-3/16"
ADA Compliant?
Water Consumption:
1.28 GPF
Cost Rating:
🚽🚽🚽
Check Price
TOTO Eco Ultramax
Rating:
-
# of Reviews:
-
Bowl Shape:
Elongated
One-Piece Toilet:
Dimensions:
28-3/16" x 16-5/8" x 29-1/8"
ADA Compliant?
Water Consumption:
1.28 GPF
Cost Rating:
🚽🚽🚽
Check Price
 

Best One-Piece Toilets Reviewed (10 Best)

Our toilet experts reviewed and listed facts for the top one-piece toilets in 2025.

1. American Standard Champion 4 – Strongest Flush

White American Standard Champion 4 toilet with specs: 16.75" wide, 29.75" tall, 29.5" long, 17.25" seat height.

Pros and Cons

  • Powerful Champion 4 flushing system that takes care of waste in one flush
  • ADA-compliant height and bowl shape
  • Large four-inch piston accelerator flush valve
  • Great color selection
  • Model tends to come in on the pricier side

 

Feature List - Model: 2034.314

Flush Specs

  • › Flush System – Champion 4 Flushing System
  • › Water Consumption – 1.6 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – SingleFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  1000 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze –  n/a
  • › Trapway Style –  Exposed

Dimensions

  • › Toilet Measurements – 29-3/4″ x 17-3/4″ x 29-1/2″
  • › Rough-inWhat is a Rough-in?Measurement between center of waste pipe and wall – 12″
  • › TrapwayWhat is a Trapway?S-shaped curved channel inside the base of the toilet. Waste travels from the bowl through the trapway, then out the bottom of the toilet. – 2-3/8″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17-1/4″
  • › Rim Height – 16-1/2″
See toilet dimensions
Technical diagram of a toilet with detailed measurements and dimensions labeled in inches and millimeters. Technical diagram of a toilet with measurements in millimeters and inches.

 

CHECK – HOME DEPOT PRICE                                      CHECK – AMAZON PRICE

“The American Standard Champion 4 is a top pick because of its super-strength flushing power and seamless one-piece design.”

We’re starting off this list strong, with our all-time favorite – the Champion 4. This toilet is a solid choice that prioritizes water efficiency and suction strength. 

White toilet with Comfort Height, left handle, 1.6-gallon flush, EverClean, glazed trapway; weighs 118 pounds. Flushing Power

This toilet uses 1.6 gallons per flush and is a leader in clog-free performance. The toilet’s quiet flush can move up to 70% larger masses than most toilets due to of the Champion 4 flush system. 

The 4″ piston accelerator flush valve helps remove most waste loads in just one flush. An extra-large trapway also eliminates waste quickly, without a double flush. The toilet’s MaP score is 1,000 grams – it doesn’t get better than that!

The Design 

It features a comfort seat height of 17-1/2″, ensuring maximum comfort. It’s ADA-compliant, with a comfortable elongated siphon action jetted bowl. 

The Champion 4 comes with an EverClean surface, which prevents bacteria, mold, and mildew buildup. Like most toilets in this price range, it features a slow-close seat. 

The American Standard Champion 4 comes in white, bone, or linen, along with a chrome trip lever. The lever can be swapped for a chrome, white, polished brass or satin finish. It comes with a ten-year warranty too. 

Read the detailed review about the Champion 4 here.

Color Options

  • White
  • Bone
  • Linen

Seat Options

  • Champion Slow Close Elongated #5325.010

Product Documentation

  • Spec Sheet (PDF)
  • Manufacturer Product Listing

Model Variations

Two white toilets labeled as "Champion 4," with different model numbers on a blue background.

Our Opinion

This one-piece toilet is a favorite among reviewers.  Several mention its powerful flush, with many stating they’ve yet to have a clog. Reviewers love the look of this toilet, sharing that it complements most bathroom designs. Some buyers didn’t find the seat comfortable, so consider buying a seat separately.

Go to top

2. Woodbridge T-0001-CH – Review Champion

Diagram of a WOODBRIDGE T-0019 toilet with specifications including size, shape, and water usage details.

Pros and Cons

  • Eco-friendly and cost-effective 1.28 gallons per flush
  • Affordably priced toilet
  • Strong flush strength
  • Dual flush buttons tend to stick over time
  • Water line can be difficult to attach

 

Feature List - Model: T-0001-CH

Flush Specs

  • › Flush System –   Siphonic actionSiphonic ExplainedA traditional flush system, also known as a gravity flush, uses a vacuum action to pull waste into the trapway
  • › Water Consumption – 1.0/1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – DualFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  1000 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze –  n/a
  • › Trapway Style –  Concealed

Dimensions

  • › Toilet Measurements – 28-1/2″ x 14-1/2″ x 27-1/2″
  • › Rough-inWhat is a Rough-in?Measurement between center of waste pipe and wall – 12″
  • › TrapwayWhat is a Trapway?S-shaped curved channel inside the base of the toilet. Waste travels from the bowl through the trapway, then out the bottom of the toilet. – 2-1/8″
  • › Seat HeightWhat is the Seat Height?Tooltip content – 18″
  • › Rim Height – 16-1/2″
See toilet dimensions
Diagram of toilet dimensions with side and top views, including height, width, and various measurements in inches.

 

CHECK – WALMART PRICE                                   CHECK – AMAZON PRICE 

“The Woodbridge T-0001-CH is an affordable, modern classic one-piece design that’ll impress.” 

Our next pick is the Woodbridge due to its budget-friendly price and solid features. 

Display of a modern white toilet featuring a dual flush system and comfort height design with Quiet-Close™ technology. Flushing Power

The dual flush system averages about 1.2 gallons per flush, saving you at least 20 percent of your annual water usage.

Smaller waste loads can be flushed with 1 gallon per flush while larger ones take up 1.28 gallons. 

It has been tested for water efficiency and found to comply with EPA and CSA guidelines. The toilet has a fantastic MaP score of 1,000 grams. 

The toilet uses a siphoned flushing tube that reduces noise and helps prevent leaks, clogs, and other problems caused by waste. 

Design & Style

The Woodbridge T-0001 toilet is considered a luxurious option by many customers with its sleek and clean design. Plus, it is very easy to clean as the toilet is designed to have minimal crevices, corners, and grooves.

The skirted trapway creates a flawless look and enables easy cleaning. The flush button comes in matte black, brushed nickel, brushed gold, or oil-rubbed bronze.

A wax ring, floor bolts, and a soft closing seat, along with stainless steel seat hinges, are included. 

Read more about other Woodbridge toilets in our comparison article.

Model Variations

Diagram of Woodbridge toilet models: Advance Smart, Smart Bidet Seat, Square Design, and Round.

Our Opinion

Buyers like the flush and dual flush option, which saves water.  The flush is powerful, and the one-piece design gives a clean, modern stylish look.  Several mentioned that the install is a little challenging, so consider hiring a professional if you aren’t experienced.

Go to top

3. Kohler Santa Rosa – Most Reviewed

Kohler Santa Rosa toilet with dimensions, water consumption details, and features displayed on a white background.

Pros and Cons

  • Water-efficient flushing system uses 1.28 gallons per flush
  • Great color selection
  • 17-1/4″ seat height
  • Supply line not included

 

Feature List - Model: K-3810

Flush Specs

  • › Flush System –  AquaPiston 360° Gravity FlushWhat is a AquaPiston 360° Gravity Flush?Flapper-less design using a canister. Water rotates 360 degree into the bowl, creating a powerful flush.
  • › Water Consumption – 1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – SingleFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  1000 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze –  n/a
  • › Trapway Style –  Exposed

Dimensions

  • › Toilet Measurements – 27-3/4″ x 18-3/4″ x 28-3/16″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17-1/4″
  • › Rim Height – 16-1/2″
See toilet dimensions
Technical drawing of a toilet with dimensions and labels in inches and millimeters. Diagram of toilet dimensions, including width, height, and depth measurements in inches and millimeters.

 

CHECK – HOME DEPOT PRICE                                         CHECK – AMAZON PRICE

“The Kohler Santa Rosa is one of our one-piece favorites due to its unique design and reliable flushing strength.” 

The Kohler Santa Rosa is well-priced and durably built and has many reviewer on major online retailers.

Infographic of Kohler Santa Rosa toilet, featuring quick-release seat, quiet close seat, AquaPiston, and 1.28 GPF. Flushing Power

The Kohler Santa Rosa utilizes 1.28 gallons per flush. It has a 2-1/8″ fully glazed trapway which efficiently removes waste in seconds. This model has an AquaPiston canister that increases the natural suction strength. 

The canister flush packs a strong water push to eliminate potential clogs due to large amounts of waste, paper, or other debris. However, customers have reported that the flush system does make a little more noise than other models.

The Design 

The Kohler Santa Rosa toilet is designed with an integrated bowl and tank for a seamless and easy-to-clean design without crevices, nooks, or corners.

It’s made with a comfort height seat that offers individuals “chair like” seating, standing at 17-1/4″.

The seat and the lid are also included in the packaging, with clear instructions on how to set it up and adjust all the necessary screws and bolts.

The toilet is available in white, biscuit, almond, ice gray, and black. A bolt cap accessory pack, tank accessory pack, tank cover, and trip lever are included, in addition to a Quiet-Close seat. Be aware that a supply line must be purchased separately. 

Read our extensive review about the Santa Rosa here.

Color Options

  • White
  • Biscuit
  • Dune
  • Almond
  • Ice Grey
  • Sandbar
  • Cashmere
  • Thunder Grey
  • Black Black
  • Innocent Blush
  • Mexican Sand

Seat Options

    • Quiet-Close elongated lid and seat prevents slamming
    • K-8298 PureWash E590 Elongated bidet toilet seat

Product Documentation

      • Spec Sheet (PDF)
      • Manufacturer Product Listing

Model Variations

Infographic showing four variations of Kohler Santa Rosa toilets, each with different features.

Our Opinion

Customers are pleased with this durable, efficient toilet.  Some were not happy with the included seat, so maybe consider buying one separately. The comfort height makes this a comfortable toilet that would be a great addition to any bathroom.

Go to top

4. TOTO Eco Ultramax – Runner Up

TOTO Eco Ultramax toilet with a blue "Runner Up" banner, shown from three angles.

Pros and Cons

  • Efficient 1.28 gallons per flush 
  • CEFIONTECT glaze reduces sticking debris
  • Color selection
  • Some users report installation parts missing

 

Feature List - Model: MS854114EL

Flush Specs

  • › Flush System –  E-Max FlushE-Max Flush ExplainedLarge 3” siphon valve and extra large siphon jet. Efficient use only 1.28 GPF. Powerful, but quiet flush.
  • › Water Consumption – 1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – SingleFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  500 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze – CEFIONTECT
  • › Trapway Style –  Exposed

Dimensions

  • › Toilet Measurements – 27-3/4″ x 18-3/4″ x 28-3/16″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › TrapwayWhat is a Trapway?S-shaped curved channel inside the base of the toilet. Waste travels from the bowl through the trapway, then out the bottom of the toilet. – 2-1/8″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17-11/16″
  • › Rim Height – 16-9/16″
See toilet dimensions
Technical drawing of a toilet with measurements in inches and millimeters. Technical diagram of a wall-mounted urinal with dimensions labeled.

 

CHECK – WALMART PRICE                           CHECK – AMAZON PRICE

“Another TOTO classic, the Eco-UltraMax is a high quality pick when you’re looking for a one-piece design yet simple and reliable.” 

The TOTO Eco UltraMax saves money and water with its low water usage. 

Flushing Power 

Another option made by the famous TOTO brand, this toilet is an excellent choice for just about anybody. To start, its E-max flush system consumes only 1.28 gallons per flush, saving money on water bills.

Design

Further, the toilet has a sleek and elegant design. The Eco-Ultramax has a CEFIONTECT glaze which reduces sticking debris buildup and makes cleaning hassle-free. 

The one-piece design significantly decreases any chance of leaks, and the sleek design ensures an easy-to-clean surface for the entire model.

This toilet comes in three different models:

      • ADA height toilet with elongated bowl, CEFIONTECT and SoftClose seat (SS114)
      • ADA height toilet with elongated bowl and SoftClose seat (SS114)
      • ADA height toilet with elongated bowl, right hand trip lever and SoftClose seat (SS114)

The toilet comes in cotton, bone, colonial white, or Sedona beige. A chrome trip lever is included.

Seat Options

      • SS114 SoftClose seat

Product Documentation

      • Spec Sheet (PDF)
      • Manufacturer Product Listing

Model Variations

Two TOTO Eco Ultramax toilet models shown on a blue background with product labels.

Our Opinion

This toilet was an easy install for most buyers. Has a powerful clog-free flush leaving a clean bowl for most reviewers.  It also comes with a soft close seat, which means one less accessory to purchase.  The tank is smaller than older models, lending itself to a sleek and modern look.

Go to top

5. Kohler Veil – Editor’s Choice

Modern white toilet with a lid, labeled "Kohler Veil." Features: Quiet Close™, One piece, Vitreous china.

Pros and Cons

  • High tech features allow users to customize settings to their liking
  • Comfort height seating provide great sitting support.
  • Cleansing elements and deodorization system automatically kill lingering bacteria.
  • Some complained of a weak flush

 

Feature List - Model: K-5401-PA

Flush Specs

  • › Flush System – Pump-assisted flushing
  • › Water Consumption – 0.8/1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – DualFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  1000 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze –  n/a
  • › Trapway Style –  Concealed

Dimensions

  • › Toilet Measurements – 26-1/8″ x 17-1/4″ x 21-7/16″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17″
  • › Rim Height – 16-1/8″
See toilet dimensions
Diagram of a water heater with dimensions and placement instructions for supply and electrical outlet. Technical diagram of a toilet with detailed dimensions in inches and millimeters.

 

CHECK – HOME DEPOT PRICE                               CHECK – AMAZON PRICE

“We’ll rave about the Kohler Veil to anyone that will listen. Its comfort, sleek one-piece design, smart technology, and customizable features are unbeatable.”

The Kohler Veil toilet is most distinguishable by its design. Smooth, sleek, and elegant, this toilet looks almost futuristic with its minimalist style. In addition to its unique look, the toilet has great quality customizable features that we love. 

The Kohler Veil meets all ADA code requirements and comes with an upgraded 17″ chair height seating, which is comfortable for all. 

Collage of Kohler Veil toilet with top-down, side view, and "Editor's Choice" banner. Flushing Ability

One of our favorite  Kohler Veil features is its special pump-assisted dual flush that allows peak flushing performance each time. The pump only consumes 0.8 or 1.28 gallons of water per flush, making the toilet sustainable and cost effective. 

The tankless unit also easily attaches to the main water supply line. The Kohler Veil uses an in-wall insulated and durable tank and carrier system, saving you much more space than other Veil one-piece elongated dual flush skirted trapway toilet. The Veil also has an actuator plate for easy flushing. 

In the case of an emergency, the Kohler Veil includes a backup feature that works even during a power outage – with up to 100 flushes! This is a great development from the 2021 Kohler Veil, which does not include flush support or any of the smart tech features. 

Customizable Features

The toilet comes with an LCD remote control that adjusts the temperature, pressure, light, and more. With the touch of a button, you can customize the toilet to your liking. Activate the seat warmer during cold nights or utilize and adjust the warm-air drying system when you’re done. Motion-activated hands-free Quiet-Close™ cover works like a charm as well.

Cleanliness

Unlike its intelligent counterpart, the Kohler Brazn, the Kohler Veil utilizes Kohler’s UV Light Cleaning Technology which sanitizes your bidet wand, reducing bacteria automatically by 99.9% every 24 hours. Sanitization is automatic, so you don’t have to worry about cleaning after you’re done. 

While the Kohler Veil is a bit pricey, especially when compared with the Kohler Brazn and Karing 2.0, we think its pump assisted flush and personalized settings make it well worth the buy.

The Kohler Veil’s seat height also reduces tension on your knees by elevating your sitting position nearly two inches higher than the other models.

Facts Worth Noting

  • Requires 2×6 studs.
  • Tankless design with direct water supply
  • Dual flush offers a choice of 0.8 or 1.19 GPF (3.0 or 4.5 lpf)
  • Automatic self-cleaning function utilizes UV light and electrolyzed water systems
  • Has automatic deodorization system
  • Includes motion-activated, hands-free opening/closing features
  • Emergency flush supports up to 100 flushes during power outage
  • Does not come with a bidet seat

*Also note, the Kohler Veil is available in white and honed black. 

Product Documentation

  • Spec Sheet (PDF)
  • Manufacturer Product Listing

Model Variations

Comparison of Kohler Veil toilets: with tank, wall-hung, and left-hand lever models on a blue background.

Our Opinion

The Kohler Veil has overwhelmingly positive reviews, with customers boasting about the heated seat, night-light, and hands-free open/closing features. Most users agree the toilet is a high-quality investment piece. Some customers mention the toilet’s installation may be a bit difficult for certain plumbers due to the model’s weight.

Go to top

6. TOTO Neorest – Most Water Efficient

TOTO Neorest toilet with measurements, features include dual flush, one-piece design, and elongated bowl shape.

Pros and Cons

  • Adjustable bidet with three wash modes
  • Built-in air purifying system and heated seat option 
  • ADA compliant
  • On the pricier side

 

Feature List - Model: MS992CUMFG

Flush Specs

  • › Flush System – Tornado Flush SystemTOTO Tornado Flush TechnologyA flush with centrifugal and cyclonic action that rinses waste away efficiently and keeps bowl cleaner
  • › Water Consumption – 0.8/1.0 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – DualFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  800 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze – CEFIONTECT
  • › Trapway Style –  Concealed

Dimensions

  • › Toilet Measurements – 31-7/16″ x 17-5/8″ x 20-3/4″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17-1/4″
  • › Rim Height – 15-9/16″
See toilet dimensions
Technical diagram of a toilet with dimensions in inches and millimeters. Technical diagram of a toilet with detailed measurements in inches and millimeters.

 

CHECK PRICE on BUILD                           CHECK – AMAZON PRICE

“The TOTO Neorest is irresistible with its adjustable bidet features, along with heating options and air-purifying system. Its another great one-piece toilet option”

If you’re looking to splurge for some extra perks, the TOTO Neorest one-piece toilet is the way to go. 

Modern white toilet with features: Tornado Flush, ACTILIGHT, CEFIONTECT. Uses 1.0/0.8 gallons. Weighs 124 pounds. Flushing Ability

The toilet has a dual flushing mechanism, using 0.8 gallons per flush or 1 gallon depending on the waste load. Even with its water efficiency, the Tornado Flush siphon jet flushing system is ultra powerful, eliminating chances of streaks or stains. The toilet also has a backup manual flush that can be used in emergency situations. 

The toilet has an auto flush option allowing you to have a hands free bathroom experience. 

Bidet Features

The TOTO Neorest comes with a multifunctional remote that activates the bidet. The bidet has three wash modes, front, rear, and soft, and has oscillating and pulsing comfort washing. You can adjust the spray position for maximum comfort levels as well. 

Additional Features

While the TOTO Neorest is pricier than the other TOTO models on this list, it comes with many convenient features that improve the user experience.

The toilet has an energy saver timer and a built-in air purifying system to get rid of nasty lingering odors. On this model, you can control the flush and set the seat temperature by using the battery-operated remote control. 

The toilet’s skirted design and high-profile tank make cleaning easy while the non-stick finish practically eliminates instances of solid waste sticking around. TOTO’s CEFIONTECT technology further eliminates cleaning time by reducing bacterial buildup. 

The toilet bowl is made of vitreous china while the seat and cover are made of plastic. It is ADA compliant, with a seat height of 17 ¼”.  The toilet’s top unit is only compatible with the CT992CUMFG elongated bowl. The toilet is only available in cotton white.

Product Documentation

  • Spec Sheet (PDF)
  • Manufacturer Product Listing

Model Variations

Image showing four variations of TOTO Neorest toilets with different designs and flush specifications on a blue background.

Our Opinion

Buyers agree that this toilet is worth the hefty price tag! This stylish toilet is an investment for your home. Users like that along with its effective flush, the toilet includes features to assist with your personal hygiene. Reviews praise the seat for being comfortable and heated.

Go to top

7. TOTO Eco Soiree

Image of a TOTO Eco Soiree toilet with specifications: elongated bowl, single flush, 1.28 GPF, dimensions shown.

Pros and Cons

  • Tornado Flush system only uses 1.28 gallons per flush 
  • Comfortable 17 ⅜” height
  • SoftClose seat included
  • Users report the bottom drain being non-symmetrical
  • On the pricier side without many additional features

 

Feature List - Model: MS964214CEF

Flush Specs

  • › Flush System – Dynamax Tornado FlushTOTO Tornado Flush TechnologyA flush with centrifugal and cyclonic action that rinses waste away efficiently and keeps bowl cleaner
  • › Water Consumption – 1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – SingleFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  600 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze – CEFIONTECT
  • › Trapway Style –  Concealed

Dimensions

  • › Toilet Measurements – 28-1/8″ x 17-11/16″ x 27-3/4″
  • › Rough-inWhat is a Rough-in?Measurement between center of waste pipe and wall – 12″
  • › TrapwayWhat is a Trapway?S-shaped curved channel inside the base of the toilet. Waste travels from the bowl through the trapway, then out the bottom of the toilet. – 2-1/8″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17-3/8″
  • › Rim Height – 14-9/16″
See toilet dimensions
Technical drawing of a toilet with dimensions and measurements in inches and millimeters. Technical drawing of a toilet with dimensions marked in inches and millimeters.

 

CHECK – HOME DEPOT PRICE                           CHECK – AMAZON PRICE

“The TOTO Eco Soiree is a well thought out one-piece toilet that’s both sustainable and aesthetically pleasing.”

This dependable toilet has a large, box-like base that takes up a bit more space in your bathroom than other models. 

TOTO Eco Soiree toilet with features: Tornado Flush, SoftClose seat, CEFIONTECT glaze, universal height. Flushing Ability

The TOTO Eco Soiree toilet is designed with a double cyclone flush system that uses a minimal amount of water to still clean the toilet bowl thoroughly. The Eco Soiree uses 1.28 gallons per flush in its high efficiency Tornado Flush system. With just one press of the lever, water swirls around the bowl picking up all the waste and potential residue which is then sucked out by the large flush valve. 

Design & Style

The seat is designed at a height of 17-3/8″  making it optimal for short and tall individuals alike. The toilet is ADA compliant and comes with an elongated front bowl and SoftClose seat. 

Though optional, we recommend getting the CEFIONTECT glaze to reduce bacterial buildup on the toilet’s exterior. The TOTO-patented glaze requires only a wipe down with mild soap and water. The skirted trapway also eliminates dirt accumulation in any nooks or crannies. 

The toilet’s trip lever has a chrome finish that prevents rusting, scratches, and scuff marks. 

Similarly, the porcelain is easy to clean and much more resistant to water and rust markings. The Eco Soiree is available in cotton, bone, colonial white, Sedona beige, and ebony (not available in CEFIONTECT). 

Available in either a 10″ or 14″ rough-in sizes. 

Seat Options

  • SS214 SoftClose seat

Product Documentation

  • Spec Sheet (PDF)
  • Manufacturer Product Listing

Our Opinion

Customers like the Eco Soiree’s Tornado flush system and fully ADA-compliant features. The toilet is installed with the trip lever on the approach side. However, this toilet is pricier than many similar units that have the same standard features. Without a bidet or heating features, this toilet is a standard, no-frill model at a higher price than necessary. 

Go to top

8. TOTO Ultramax Toilet

Diagram of a white TOTO Ultramax toilet with specifications and features.

Pros and Cons

  • Powerful G-Max flushing system
  • Good color selection
  • CEFIONTECT glaze available
  • Reviewers report receiving a fractured bowl upon delivery

 

Feature List - Model: MS854114S

Flush Specs

  • › Flush System –  G-Max FlushWhat is a G-Max Flush?Larger flush valve. 3.25” valve vs. a standard 2.83” valve. Utilizes additional water jets.
  • › Water Consumption – 1.6 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – SingleFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  600 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze – CEFIONTECT
  • › Trapway Style –  Exposed

Dimensions

  • › Toilet Measurements – 226-5/8″ x 16-5/8″ x 27-3/16″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 15.7″
  • › Rim Height – 15-11/16″
See toilet dimensions
Technical diagram of a toilet with dimensions labeled in inches and millimeters. Diagram of a toilet side profile with measurements in inches and millimeters against a finished wall.

 

CHECK – LOWE’S PRICE                                     CHECK – AMAZON PRICE

“Just as its name suggests, the TOTO Ultramax knocks it out of the park with its winning G-Max flushing system and one-piece design.”

The easy-to-use TOTO Ultramax toilet keeps it simple, but classy. 

Infographic of a TOTO Ultramax toilet with features: G-Max flush, SoftClose seat, CEFIONTECT, ADA compliant. Flushing Power

The TOTO Ultramax’s G-Max flushing system uses an extra-large siphon jet for maximum suction power and a wide 3″ flush valve to pack a punch in every flush.

The toilet’s fully glazed trapway also reduces the chance of clogging. The Ultramax uses 1.6 gallons per flush, which fully washed away large waste and any potential streaks. 

This model is reliable with a relatively low flush noise level. 

Additional Features

Like most TOTO toilets, the Ultramax comes with the CEFIONTECT glaze to reduce any grime accumulation on the toilet bowl and exterior. The one-piece design and high-profile tank only needs slight maintenance with a simple water and soap wipe down.

The toilet seating stands at a standard 15-11/16″. 

The Ultramax comes in three models: an elongated bowl with CEFIONTECT and SoftClose seat, an elongated bowl and SoftClose seat, or a round bowl with a SoftClose seat. 

Color Options

  • Cotton (01)
  • Bone (03)
  • Colonial White (11)
  • Sedona Beige (12)

Seat Options

  • SS114 SoftClose seat

Product Documentation

  • Spec Sheet (PDF)
  • Manufacturer Product Listing

Model Variations

Two TOTO Eco Ultramax toilet models shown on a blue background with product labels.

Our Opinion

Overall, customers are satisfied with the effective flush of this toilet and its comfortable height. The most common complaint is the toilet’s state upon arrival. Many individuals report receiving broken parts, such as a fractured bowl. After contacting customer service, they were able to get new parts re-ordered at no extra cost.

Go to top

9. Kohler Kathryn Toilet

Diagram of Kohler Kathryn toilet with dimensions and features: 28" length, 17.37" seat height, 1.28 GPF.

Pros and Cons

  • Easy installation
  • Color selection
  • AquaPiston technology that optimizes flushing performance
  • Mismatched base and cover sizes that required a reorder

 

Feature List - Model: K-3940

Flush Specs

  • › Flush System –  AquaPiston 360° Gravity FlushWhat is a AquaPiston 360° Gravity Flush?Flapper-less design using a canister. Water rotates 360 degree into the bowl, creating a powerful flush.
  • › Water Consumption – 1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – SingleFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.
  • › Flush Score –  1000 MaPWhat is MaP?Grams of waste removed in a single flush. Scale = 0 - 1000 

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze – n/a
  • › Trapway Style –  Concealed

Dimensions

  • › Toilet Measurements – 26-5/8″ x 17-1/2″ x 28-5/8″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 17-1/8″
  • › Rim Height – 16-3/8″
See toilet dimensions
Technical drawing of a toilet with dimensions and specifications labeled in inches and millimeters. Technical drawing of a toilet with dimensions and measurements in inches and millimeters.

 

CHECK – HOME DEPOT PRICE                                    CHECK – AMAZON PRICE

“Not only do we love the one-piece design, but the Kohler Kathryn’s fun color selection that allows you to match your bathroom decor.”

This toilet is compatible with other items in the Kohler Kathryn collection, so if you like what you see, there’s other varieties.

Kohler Kathryn toilet with AquaPiston, Quick-Release seat, Clean Caps, uses 1.28 gallons, 105 pounds, left handle. Flushing Power 

The Kohler Kathryn one-piece toilet is another phenomenal example of Kohler’s AquaPiston technology being put to work. The toilet’s flush valve optimizes performance by using the natural force of gravity to expel large waste loads. 

The toilet’s canister lets water flow into the bowl from all angles and requires less actuation force than standard flappers. Just like the Santa Rosa, this model’s canister design reduces the chance of leakage by having 90% less exposed material than a 3″ flapper. 

The toilet delivers a fast and powerful flush even while consuming only 1.28 gallons of water. 

Design & Style

The Kohler Kathryn comes in a comfort height, seating at 17-1/8″ height. The toilet is designed with a concealed trapway and clean caps with low profile bolts to make cleaning especially simple. 

The Kathryn comes with a Quiet-Close Quick-Release toilet that is easily removable for thorough cleaning.

The toilet’s polished chrome trip lever is left-handed. A supply line is not included.

The toilet comes in either white, bisquit or black black.

Seat Options

  • K-4108 PureWash E750 Elongated bidet toilet seat with remote control (optional)
  • K-4733 Glenbury Quiet-Close elongated toilet seat (comes with it)

Product Documentation

  • Spec Sheet (PDF)
  • Manufacturer Product Listing

Model Variations

Two variations of Kohler Kathryn toilets, model K-3940, on a blue background.

Our Opinion

This toilet gets high ratings from its buyers. Many were pleased with the modern design of the toilet, making it a great addition to their bathrooms. Installation was easy, and it has an effective flush, even with its minimal water usage. Unfortunately, some users report receiving mismatched parts in the mail that required a reorder from the manufacturer.

Go to top

10. SaniCanada 942 Toilet

White toilet next to a wooden sink cabinet, with a floral wallpaper and an orchid. Text reads "SANICANADA 942".

Pros and Cons

  • Eco-friendly dual flush system 
  • Quick-release soft close seat
  • Installation may require professional help

 

Feature List - Model: PA 12295

Flush Specs

  • › Water Consumption – 0.8/1.28 GPFGallons Per FlushEfficient toilets use 1.28 gallons per flush, saving 20% more water than 1.6 GPF toilets.
  • › Type – DualFlush Type ExplainedA single flush is one press of the lever for a full flush. A dual flush allows the option for a partial or full flush.

Design & Style

  • › Style –  One-Piece
  • › Bowl Shape –  ElongatedShape ExplainedElongated bowls are oval shaped and 2” inches wider than round bowls
  • › Bowl Glaze – n/a
  • › Trapway Style –  Concealed

Dimensions

  • › Toilet Measurements – 27-1/2″ x 14-1/3″ x 30-1/3″
  • › Rough-inWhat is a Rough-in??Measurement between center of waste pipe and wall – 12″
  • › Seat HeightWhat is the Seat Height?The measurement from the floor to the top of the toilet seat. Standard height toilets measure between 15 - 17 inches, while chair height toilets measure 17 inches or more. – 16-1/2″
  • › Rim Height – 15-1/3″
See toilet dimensions
Technical diagram of a toilet with measurements in inches and millimeters.

 

CHECK PRICE on WAYFAIR                                   CHECK – AMAZON PRICE

“Compact and sleek one-piece design, the SaniCanada London is as simple as they come.” 

The last toilet to make our one-piece toilet list is the SaniCanada London. We liked the model’s simple and clean look, as well as the dual-flush mechanism. 

Main Features

This toilet comes with a dual-flush system for either a 0.8 or 1.28-gallon flush, which saves lots of water. The London toilet requires almost no maintenance and can be cleaned in a matter of minutes. The Dual Hurricane Flush system expels waste in a forceful yet in a low noise manner. 

Its standard 15-1/3″ bowl rim height is suitable for most users and the elongated bowl provides an added layer of comfort while sitting. The toilet is made of glazed ceramic, with a sleek, glazed skirted trapway. The toilet has no ridges so dirt or grime can be wiped off in one swipe. 

The toilet comes with side bolt cover parts, a tank lid with chrome actuator push buttons, a quick-release toilet seat with hinges, and a wax ring.

Product Documentation

  • Manufacturer Product Listing

Our Opinion

Users tend to like the SaniCanada London because of its simple nature.  The unit is praised for its modern look and flushing system. Some users report having difficulties installing the unit, eventually calling for professional help.

Go to top

Buyer’s Guide for a Sleek One-Piece Toilet

Choosing the right one-piece toilet is not always simple. There are various things to consider, which might be difficult if you are buying a one-piece toilet for the first time.

Minimalist bathroom with a one-piece toilet and toilet paper holder beside it. Text: "Best One-Piece Toilet Review and Guide.

Here we’ve listed four important details to keep in mind when choosing your next toilet.

Dimensions and Rough-in Requirement

Most toilets are a standard 12 inches from the wall, which is called a rough-in dimension. However, be sure to measure your bathroom’s rough-in before buying a toilet, in case you need a 10 or 14 inch option instead. It’s also important to keep an ideal seat height in mind to ensure you new toilet will fit every member of the family.

Water Efficiency

Water efficiency has two advantages: it saves you money in water bills, while also saving the environment. Most modern toilets consume 1.28 gallons of water per flush while maintaining plenty of flush power. Some toilets might use up to 1.6 gallons, but not  water-efficient.

It’s a common belief that the more water the toilet uses, the cleaner it will be. Wrong!

Toilets usually account for 30 percent of water usage in an average household. To combat wasting water, modern toilets use much less water while maintaining efficiency (1.28 GPF). Look for a model with an EPA WaterSense label to ensure you purchase an efficient option.

Easy Cleaning

The obvious advantage of one-piece toilets is the ease of cleaning.

Since the bowl and the tank are seamless, there’s no place for bacteria to hide in a seam. Additionally, the chance of leaking is minimal, since the bowl and the tank has no seam. We recommend a model with a simple and sleek one-piece design for this reason.

Talking about cleaning, we created a how-to article about homemade toilet cleaning methods

Highly Durable

Any type of equipment, including toilets, is more durable with fewer parts. A two-piece toilet has a rubber gasket, which can cause leaking over time.

By looking for a simple one-piece option with minimal parts, you’ll lower your risk of broken seals or loose bolts over time. Pay attention to user reviews and warranty options as well to ensure you invest in a durable, high quality toilet. 

Disadvantages

Of course, one-piece models have some disadvantages, too. First, they are can be a little more expensive, and if you buy a cheaper model, it can be a risk of a cheaper made toilet without features.

Also, if the toilet bowl cracks, you cannot replace just the bowl or tank separate without buying a completely new toilet..

Many one-piece toilets are usually smaller and lower height, which is not ideal for tall people. 

Weight could also be a concern, they are typically slightly more heavy being a large single piece. Carrying just the bowl or tank is much lighter to carry and easier to fit together while installing. 

Installation Process

It’s actually very simple, but the process can vary depending on the specific toilet.  

It’s easy if you follow our full toilet install guide.

Frequently Asked Questions

We carefully answered the most asked questions by our readers about one-piece toilets. 

    What Is the Best One-Piece Toilet in the Market?

    Obviously, the best one-piece toilet should be affordable. If it features a dual-flush option, even better. Among the many brands that we tested, TOTO seems to be the market leader. Their toilets are also among the most comfortable.

    How Do One-Piece Toilets Differ From Two-Piece Counterparts?

    One-piece models don’t have any space between the tank and bowl, which prevents the dirt and debris from buildup. Also, they are usually low profile.

    Is a One-Piece Toilet Easy to Install?

    If you have some basic DIY skills, installing a one-piece toilet shouldn’t be a problem. However, you should still call a professional to prevent voiding your warranty.

    How Much Water Does a One-Piece Toilet Save?

    One-piece toilets use much less water than standard units. It saves the environment, and it also reduces your monthly water bills.

    Is a One-Piece Toilet Completely Clean After Flushing?

    Yes. They typically use less water, but they have specific flushing mechanisms. These mechanisms allow one-piece models to flush completely clean, with less water involved.

    How much does a one piece toilet cost?

    One-piece toilets are more expensive than their two-piece counterparts.

    How wide is a one piece toilet?

    Anywhere from 14″-18″ depending on the model. 

    Our Final Opinion

    The most popular brands for one-piece toilets include Kohler, TOTO, American Standard and Woodbridge. Our Editor’s Choice one-piece toilet is the Kohler Veil – thank you for taking a look at our article, please reach out to us for all your toilet answers.

      Category iconToilet Type,  Toilets

      Primary Sidebar

      Recent Posts

      • One-Piece Toilets with Seamless Design | 10 Reviews
      • Powerful Flushing Toilets (12 Strongest Flush) Reviews
      • Elongated Toilet Review ( 6 Favorites) Oval Bowl
      • The BEST Elongated Toilet Review (Oval Bowl) Toiletable
      • WaterSense Toilet Review (6 Save Water Saving Toilets)

      Footer

      Logo of "Toiletable" with an illustration of a toilet and a sparkling star on the tank.

      Guides and resources for your toilet needs.

      DIY plumbing skills for homeowners.

      Toiletable.com | All Rights Reserved

      Company Information

      • About Us
      • Contact Us
      • Affiliate Disclaimer
      • Privacy Policy

      [email protected]

      Toilet Guides

      • Fix & Repair
      • Cleaning Tips
      • Clogs
      • Installation
      • Measuring
      • Water Saving
      • History
      • Comparisons