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One Piece Toilets Comparison - December 2025
| 1 Best Choice  9.8Exceptional | 2  9.6Exceptional | 3 Best Value  9.5Excellent | 4  9.3Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
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 with Soft Close Seat, Dual Flush (1.1/1.6GPF) High-Efficiency Modern Bathroom Toilet Bowl with 17" Comfortable ADA Seat Height, 12" Rough-In, White, F52636-01 | Model DeerValley One Piece Toilet DV-1F026 Elongated Toilet with Powerful Dual Flush 1.1/1.6 GPF Soft-Close Seat Standard Height Easy-Clean Skirted Design 12" Rough-In |
BrandHOROW | Brand CASTA DIVA | Brand DeerValley | Brand DeerValley |
Reviews | Reviews | Reviews  | Reviews |
Tech Specs | |||
colorWhite with Chrome Button | color White | color - | color White with Chrome Button |
included_componentsChair Height Toilet X 1, Elongated Toilet Seat X 1, Floor Bolts 1 Set, Hight-quality Wax Ring X 1, Pre-installed Flush Valve X 1 | included_components Mounting kit | included_components - | included_components Wax Ring, Toilet Seat, Floor Bolts, Installation Instruction Manual |
item_weight99.2 pounds | item_weight 125 pounds | item_weight - | item_weight 99 pounds |
seat_material_typePlastic | seat_material_type Polypropylene (PP) | seat_material_type - | seat_material_type Plastic |
product_dimensions26.6"D x 15"W x 26"H | product_dimensions 27.17"D x 14.37"W x 25.39"H | product_dimensions - | product_dimensions 28.15"D x 14.17"W x 26.97"H |
shapeOblong Elongated | shape U-Shape | shape - | shape Oval |
materialCeramic | material Ceramic | material - | material Ceramic |
installation_typeFloor Mounted | installation_type Floor Mounted | installation_type - | installation_type Floor Mounted |
part_numberT0338W | part_number CD-T005 | part_number - | part_number Dual Flush Toilets |
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
1HOROW20% OffHOROW 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.
- Multiple options: We have 10" rouhg-in and 12" rough-in toilets to choose from, paired with different colored appearances to your bathroom. If you are unable to accurately measure the rough-in of your toilet, we recommend purchasing a minimum 10 inch toilet to ensure seamless installation.
- 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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9.5
3DeerValley28% Off
Deer Valley Elongated One Piece Toilet with Soft Close Seat, Dual Flush (1.1/1.6GPF) High-Efficiency Modern Bathroom Toilet Bowl with 17" Comfortable ADA Seat Height, 12" Rough-In, White, F52636-01
Why we love it
Reduces knee and back strain.
Saves water with dual flush.
Easy to clean and maintain.
Main highlights- Premium Soft-Close Seat: Featuring a soft-closing PP toilet seat and rust-proof stainless steel hinges, this one piece toilet eliminates the noise of lid closures, making it perfect for light sleepers or shared bathrooms. The stainless steel hinges resist rust even in humid climates, ensuring that the seat remains secure over time. Additionally, the quick-release design allows for effortless removal for thorough cleaning, promoting long-term hygiene and durability
- High-Efficiency Dual Flush (1.1/1.6 GPF) for Savings & Performance: Equipped with a dual-flush system, this modern toilet tackles stubborn waste with a 1.6 GPF full flush and efficiently handles liquids with a 1.1 GPF half flush, making it perfect for late-night use. It speeds up cleaning, reduces water usage, and minimizes the risk of clogs—ideal for eco-conscious families or areas with strict water regulations
- Ergonomic Comfort Design for All Users: Featuring a seat height of nearly 17 inches and an elongated bowl measuring close to 18 inches, this one-piece toilet helps reduce knee and back strain—especially for seniors or those recovering from surgery. The elevated design mimics a chair, ensuring accessible support and natural comfort during daily routines, the elongated toilet is ideal for households with elderly parents or individuals with mobility limitations
- Easy to Clean and Maintain: Say goodbye to scrubbing hidden crevices behind the white toilet. The fully skirted trapway of the bathroom toilet eliminates dust-trapping gaps, while the high-fired ceramic glaze (2246°F) effectively repels coffee stains and hard water marks. Busy parents or allergy sufferers will appreciate the significant reduction in cleaning time, allowing surfaces to be wiped clean in seconds
- Easy Installation: This one-piece toilet comes with pre-attached bolts, a wax ring, and a dual-size adapter that fits 90% of plumbing setups. Even DIY beginners can install this one piece toilet in under an hour—no extra parts or professional help needed. Additionally, dedicated customer support is available to assist if issues arise, such as an uneven bathroom floor, ensuring peace of mind throughout the installation process
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Features
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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.
