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One Piece Toilets Comparison - September 2025
| 1 Best Choice  9.8Exceptional | 2  9.6Exceptional | 3 Best Value  9.3Excellent | 4  9.2Excellent |
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ModelHOROW T0338W Compact One Piece Toilet with Comfort Chair Seat ADA Height 17.3", Elongated Dual Flush 0.8/1.28 GPF and MAP 1000g, Standard White Toilet Bowl | Model 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 | Model Deer Valley Elongated One Piece Toilet for Bathrooms, Comfort Seat Height 17", Dual Power Flush Toilet 1.1/1.6 GPF MAP 900g, DV-1F52102 | Model Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual Tornado Flush 0.8/1.28 GPF with Soft Closing Seat, Comfort Height |
BrandHOROW | Brand CASTA DIVA | Brand Deer Valley | Brand Swiss Madison |
Reviews | Reviews | Reviews  | Reviews |
Tech Specs | |||
color White with Chrome Button | color White | color White | color Glossy White |
included components Hight-quality Wax Ring X 1, Pre-installed Flush Valve X 1, Floor Bolts 1 Set, Quick Release Elongated Toilet Seat X 1, Chair Height Toilet X 1 | included components Mounting kit | included components toilet, toilet seat, flush valve, wax ring, floor bolts | included components Wax Ring, Toilet Seat, Installation Hardware |
installation type Floor Mounted | installation type Floor Mounted | installation type Floor Mounted | installation type Floor Mounted |
customer reviews4.4 4.4 out of 5 stars 461 ratings 4.4 out of 5 stars | customer reviews 5.0 5.0 out of 5 stars 5 ratings 5.0 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 121 ratings 4.4 out of 5 stars | customer reviews 4.2 4.2 out of 5 stars 2, 260 ratings 4.2 out of 5 stars |
product dimensions 26.6D x 15W x 26H | product dimensions 27.17D x 14.37W x 25.39H | product dimensions 27.63D x 15.13W x 30.75H | product dimensions 27D x 15.15W x 31.3H |
shape Oblong Elongated | shape U-Shape | shape Elongated | shape Elongated |
item weight 99.2 pounds | item weight 110 pounds | item weight 97 pounds | item weight 120 pounds |
material Ceramic | material Ceramic | material Ceramic | material Ceramic |
seat material type Plastic | seat material type Polypropylene PP | seat material type Plastic | seat material type Plastic |
item package quantity 1 | item package quantity - | item package quantity 1 | item package quantity 1 |
size 12 Rough-in | size - | size Elongated | size Dual Flush |
Review | Review - | Review - | Review |
Available On   | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1HOROWHOROW T0338W Compact One Piece Toilet with Comfort Chair Seat ADA Height 17.3", Elongated Dual Flush 0.8/1.28 GPF and MAP 1000g, Standard White Toilet Bowl
Why we love it
ADA-compliant chair height for comfort.
Powerful, quiet flush system.
Excellent customer service response.
Main highlights- Water Saving Performance: Siphon Flushing. Dual Flush 0.8/1.28 GPF. A 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance
- Warranty: HOROW values each customer's shopping experience and believes in the quality of our products, therefore our toilets come with lifetime after-sales service and 1-year limited warranty. Our customer service center will respond to messages within 12 hours.
- Superior Quality Seat: This comfortable seat height toilet comes with a soft closing PP seat, which closes quietly and slowly, effectively reducing the noise of going to the toilet at night. The elongated toilet seat is also fixed with screws, making sure your seat will not come loose from the toilet bowl.
- Map Flush 1000 Grams: Great Maximum Performance Flush score of 1000 grams, meets Water Sense criteria. Fully-glazed 2" trapway. Such a powerful and water-saving toilet bowl comes from our research and development of innovative toilet plumbing structures
- Luxurious Toilets for Bathrooms: Seamless, one-piece toilets design makes a statement with its clean lines and low profile. This compact elongated toilet measures just 26.6 inches deep by 15 inches wide and 26 inches high (entire height), ensuring plenty of room for comfort in a bathroom space.
- Easy to Install: Two big opening holes on the side to fix the toilet much easier. Installing a new modern toilet isn't as hard as it sounds. All you need are a few hours and a plumber. Installation video explanations will make the installation process easier
- Chair Height Toilet: ADA Compliant. Features 17.3"+ seat height from floor to seat. Comfortable height seating, ideal for the elderly and individuals with disabilities which makes sitting down and standing up easier.
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9.6
2CASTA DIVA
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
Why we love it
Seamless, easy-to-clean design.
Powerful, quiet flush performance.
Water-saving dual-flush system.
Main highlights- Water Saving Performance: dual-flush option (1.1 GPF for liquids, 1.6 GPF for solids), meets EPA's WaterSense criteria for superb water conservation
- Soft Close & Quick Release Seat: high-quality materials and construction for long-lasting performance, closes slowly and quietly without slamming, ensuring a peaceful bathroom experience
- Quality Guarantee: Casta Diva toilets meet standard of CUPC. We provide 1-year limited customer service & lifetime technical consulting
- Powerful Siphon Flush Toilet: with a MAP rating of 1000, provides a powerful siphon jet flush performance, great performance flush score of 1000 grams and fully-glazed trapway bring a super quiet and powerful flush with no clogs
- Luxurious Modern Toilet for Bathrooms: skirted 1-piece toilet integrates the tank and bowl into a seamless, easy-to-clean design, no leaking tank problem
- Easy to Install: standard 12 inch rough-in toilet, 2 side holes for floor bolts installation; includes toilet with integrated tank, white tank cover, pre-installed fill and flush valve, elongated slow-close seat with lid, wax seal and all hardware necessary for installation
- Comfort Height Toilet: our compact elongated toilet measures 27.17 inch Deepth x 14.37 inch Width x 25.39 inch Height, 17 inch ADA comfort chair seat height and bring convenience to users
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9.3
3Deer Valley10% Off
Deer Valley Elongated One Piece Toilet for Bathrooms, Comfort Seat Height 17", Dual Power Flush Toilet 1.1/1.6 GPF MAP 900g, DV-1F52102
Why we love it
Easy to clean and maintain.
Powerful and efficient flushing system.
Comfortable seating height.
Main highlights- Soft Closing & Quick Release Seat: The modern toilet for bathrooms comes with a soft closing PP seat, which closes quietly and slowly. Avoiding any clattering when you use the tall toilet. The toilet seat also has a quick-release design, which is very easy to get the toilet seat off to tighten or clean.
- Powerful Flush Toilet: With Siphonic Flushing technology, this one piece toilet has two flush options: full flush 1.6 Gpf, and light flush 1.1 Gpf. Great performance flush score of 900 grams and fully-glazed 2" trapway bring a super quiet and powerful flush with no clogs.
- Package Included: Toilet, soft closing toilet seat, high-quality wax ring, pre-installed flush valve, floor bolts, and installation instructions. Also with a supply line connector (adapter) for you to connect the supply line and toilet.
- Easy to Clean and Install: With concealed trapway, a Seamless One-piece toilet bowl is designed to stay clean and easy to wipe down. Offering a sleek look and easy cleaning. Two big installation access on the side allows the plumber to install this toilet much easier.
- Comfort Modern Toilets for Bathroom: DeerValley elongated one-piece toilet 27.63 x 15.13 x 30.75 inches, Elongated comfort height bowl for luxury and convenience.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
