Finding the right back outlet toilet can be a challenge, especially given the variety of designs and features available. The best overall pick, the SuperfLo Rear Outlet Toilet with 19-Inch Tall Bowl, offers a reliable combination of comfort and performance. For those prioritizing ease of installation, the Simple Project Rear Discharge Toilet with 19 Inch ADA Height provides straightforward setup, while the American Standard Yorkville stands out for its pressure-assisted flush and efficiency. The main tradeoffs typically involve balancing space-saving features against comfort, as well as choosing between traditional and modern flushing systems. Keep reading for a full breakdown of these options and what to consider when selecting your ideal back outlet toilet.
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Key Takeaways
- Top-ranked models balance space-saving design with reliable flushing performance.
- ADA-compliant options provide enhanced comfort for taller or less mobile users.
- Modern, rimless flush systems tend to offer better hygiene and easier cleaning.
- Installation complexity varies, with some models designed for straightforward setup and others requiring more plumbing work.
- Choosing between high-efficiency and pressure-assisted models depends on water savings priorities and flushing power needs.
| SUPERFLO Rear Outlet Tall Toilet for Seniors, 19 Inch Height, Rear Discharge |  | Best Overall for Safety and Ease of Use | Height: 19 inches | Discharge Type: Rear discharge | Flush Volume: 1.6 GPF full flush, 0.8 GPF half flush | VIEW ON AMAZON | See Our Full Breakdown |
| SUPERFLO 19” High Toilets Round Tall Toilet, Rear Outlet Toilet |  | Best for Comfort and Compatibility with Wall Drains | Model Number: HT-120 | Number of Items: 10 | Flush Rate: 0.8/1.28 GPF | VIEW ON AMAZON | See Our Full Breakdown |
| SuperfLo Rear Outlet Toilet with 19-Inch Tall Bowl |  | Best for Versatile Installation and Easy Maintenance | Height: 19 inches | Flush Rate: 1.28 GPF full flush, 0.8 GPF half flush | Installation: Rear drain, wall drain, P-Trap design | VIEW ON AMAZON | See Our Full Breakdown |
| Rear Outlet Toilet with Tank: Powerful Flush & Space-Saving Design with Rear Discharge |  | Best for Compact Spaces and High Efficiency | Brand: maceratingflo | Model Number: MTO00T01-A | Number of Items: 1 | VIEW ON AMAZON | See Our Full Breakdown |
| Simple Project Rear Discharge Toilet with 19 Inch ADA Tall Toilet Bowl |  | Best for Accessibility and Dual-Flush Efficiency | Brand: Simple Project | Model Number: HT-120 | Number of Items: 1 | VIEW ON AMAZON | See Our Full Breakdown |
| Skirted & Elongated Rear Outlet Toilet with 7″ Rough-In and Soft-Close Seat |  | Best Overall for Versatile Rear Outlet Toilets | Outlet Diameter: 3 inches | Rough-In: 7 inches | Seat Height: 17.6 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Rimless Flushing Rear Outlet Toilet with Tank, 18″ Comfort Height, Skirted, Elongated Two-Piece Back Discharge, 1.28 GPF, P-Trap, Extension Pipes Included |  | Best for Renovations and Wall Discharge Compatibility | Height: 18 inches | Flush Rate: 1.28 GPF | Installation Type: Wall discharge | VIEW ON AMAZON | See Our Full Breakdown |
| Simple Project Rear Discharge Toilet, 19″ ADA Tall Toilets for Seniors |  | Best for Accessibility and Comfort for Seniors | Height: 19 inches | Flush Rate: 1.6 GPF full, 1 GPF half | Drain Outlet Position: Rear | VIEW ON AMAZON | See Our Full Breakdown |
| Compact 16.5” Two-Piece Rear Outlet Toilet with Extension Pipes and Soft-Close Seat |  | Best for Narrow Bathrooms and Space-Conscious Installations | Size: 16.5 inches | Type: Two-piece | Outlet: Rear | VIEW ON AMAZON | See Our Full Breakdown |
| ARES 18″ Tall Rear Outlet Toilet with Comfort Seat & Dual Flush Water Tank |  | Best for Accessibility and Modern Hygiene Features | Height: 18 inches | Bowl Length: 18.5 inches | Type: Two-piece | VIEW ON AMAZON | See Our Full Breakdown |
| Rear Discharge Toilet with Rimless Flush, 18” Comfort Height, Elongated Bowl, 1.28 GPF, Two Piece Modern Design |  | Best Overall for Accessibility and Modern Design | Height: 18 inches | Bowl Shape: Elongated | Water Usage: 1.28 GPF | VIEW ON AMAZON | See Our Full Breakdown |
| Maxwell 1.28 GPF Wall Hung Back Outlet Combo: 21-970 Bowl with 28-970 Tank, White |  | Best for Space-Saving Modern Bathrooms with Adjustable Setup | Brand: Gerber | Model Number: G0020021 | Color: White | VIEW ON AMAZON | See Our Full Breakdown |
| American Standard Yorkville Two-Piece Pressure Assisted Toilet, Chair Height, Elongated Front, White, 1.6 GPF |  | Best for Power and Efficiency in Traditional Installations | Brand: American Standard | Model: 2878.016.020 | Color: White | VIEW ON AMAZON | See Our Full Breakdown |
| Simple Project Rear Outlet Toilet with Tank, 19 Inch ADA Height |  | Best for Comfort and Mobility Support in Rear Outlet Design | Height: 19 inches | Flush Technology: 1/1.28 GPF dual flush | Type: Rear outlet | VIEW ON AMAZON | See Our Full Breakdown |
| back outlet toilet | Height | Flush Rate |
|---|---|---|
| SUPERFLO Rear Outlet Tall Toil | 19 inches | — |
| SUPERFLO 19” High Toilets Roun | — | 0.8/1.28 GPF |
| SuperfLo Rear Outlet Toilet wi | 19 inches | 1.28 GPF full flush, 0.8 GPF half flush |
| Rear Outlet Toilet with Tank: | — | — |
| Simple Project Rear Discharge | 19 inches | — |
| Skirted & Elongated Rear Outle | — | 1.28 GPF |
| Rimless Flushing Rear Outlet T | 18 inches | 1.28 GPF |
| Simple Project Rear Discharge | 19 inches | 1.6 GPF full, 1 GPF half |
| Compact 16.5” Two-Piece Rear O | — | — |
| ARES 18" Tall Rear Outlet Toil | 18 inches | — |
| Rear Discharge Toilet with Rim | 18 inches | — |
| Maxwell 1.28 GPF Wall Hung Bac | 15.75 inches | 1.28 GPF |
| American Standard Yorkville Tw | — | 1.6 GPF |
| Simple Project Rear Outlet Toi | 19 inches | — |
More Details on Our Top Picks
SUPERFLO Rear Outlet Tall Toilet for Seniors, 19 Inch Height, Rear Discharge
This high, 19-inch tall toilet stands out as the top choice for those prioritizing safety and comfort, especially for seniors or disabled users. Its elevated height reduces strain during sitting and standing, surpassing standard height models. Unlike the SUPERFLO 19” Tall Toilet with its more straightforward rear outlet, this model includes dual-flush options that optimize water conservation without sacrificing performance. The soft-close seat adds a layer of quiet operation, making it suitable for shared spaces. However, its rear discharge design may demand specific plumbing configurations, and the taller height might not suit every user’s preference or bathroom layout. Installation can be more involved due to the rear discharge system, which may require additional plumbing adjustments compared to standard models.
Pros:- Extra tall height improves safety and ease of use
- Dual-flush system enhances water efficiency
- Quiet, soft-close seat minimizes noise
Cons:- Rear discharge setup may require specialized plumbing
- Tall height may be uncomfortable for shorter users
Best for: Seniors or disabled individuals needing a taller, safer toilet with water-saving features
Not ideal for: Homeowners with limited space or standard height preferences, as the 19-inch height may be uncomfortable for some users
- Height:19 inches
- Discharge Type:Rear discharge
- Flush Volume:1.6 GPF full flush, 0.8 GPF half flush
- Seat Type:Soft close
- Material:Ceramic
- Includes:Extension pipe, toilet bowl, toilet tank
Our verdict“This model is best suited for users needing a high, safe, and water-efficient toilet, despite installation complexity.”
SUPERFLO 19” High Toilets Round Tall Toilet, Rear Outlet Toilet
Compared with the SuperfLo Rear Outlet Toilet with its similar height, this round, comfort-height model emphasizes dual-flush water savings and rear drainage compatibility. Its 19-inch height makes it suitable for tall or elderly users, and the slow-drop lid adds to the quiet operation. While its rear outlet design ensures compatibility with wall drain setups, precise measurement is essential before installation, and there’s limited information about long-term durability. Unlike the taller, elongated models, this round bowl might feel less spacious for some users, and the installation process may require detailed planning to ensure proper fit. Overall, it offers effective comfort and water efficiency but may need careful setup.
Pros:- Comfortable 19-inch height suitable for tall users
- Dual flush system maximizes water savings
- Quiet, slow-drop lid reduces noise
Cons:- Requires precise rear drain compatibility measurement
- Limited details on durability and long-term performance
Best for: Tall or elderly users seeking a comfortable, dual-flush toilet compatible with wall drain plumbing
Not ideal for: Homeowners with irregular or non-standard rear drain setups, or those preferring elongated bowls
- Model Number:HT-120
- Number of Items:10
- Flush Rate:0.8/1.28 GPF
- Included Components:Rear Drain Connection Pipe, Rear Outlet Toilet, Toilet Tank
- Item Type:Tall Toilet
- Brand Name:SUPERFLO
Our verdict“This toilet makes sense for users needing comfort and water efficiency with wall drain compatibility, provided installation details are carefully addressed.”
SuperfLo Rear Outlet Toilet with 19-Inch Tall Bowl
This model emphasizes flexibility with its rear and wall drain installation options, making it ideal for diverse bathroom configurations. Its 19-inch tall bowl offers easier access for seniors and mobility-impaired users, matching the height of other premium options like the Simple Project Rear Discharge Toilet. The dual-flush system ensures water savings, and the seamless, easy-to-clean design reduces maintenance time. However, it may require additional components like a macerator pump for certain setups, and its installation complexity can be higher than simpler models. Compared to the SUPERFLO 19” Tall Toilet, this version’s installation versatility is a clear advantage, but it may involve extra parts and planning.
Pros:- Flexible rear or wall drain installation
- Elevated 19-inch height improves accessibility
- Easy-to-clean seamless design
Cons:- May require additional components like a macerator pump
- Installation can be more complex depending on setup
Best for: Users needing a versatile rear or wall drain compatible toilet with easy-to-maintain features
Not ideal for: Those with limited space or seeking a straightforward, no-fuss installation, due to potential setup complexity
- Height:19 inches
- Flush Rate:1.28 GPF full flush, 0.8 GPF half flush
- Installation:Rear drain, wall drain, P-Trap design
- Features:Soft-close seat, seamless base
Our verdict“This toilet suits users seeking installation flexibility and easy maintenance, despite the need for extra parts in some cases.”
Rear Outlet Toilet with Tank: Powerful Flush & Space-Saving Design with Rear Discharge
This rear outlet toilet from MaceratingFlo prioritizes space-saving design and powerful flushing, making it suitable for small bathrooms or high-rise apartments. Its high-efficiency flush minimizes water use, and the included extension pipe simplifies installation in tight or specific setups, surpassing simpler models like the Simple Project Rear Discharge Toilet in efficiency. However, some users report installation challenges, especially for those unfamiliar with plumbing setups. The limited two-year warranty reflects a tradeoff for its space-conscious design and high performance. Compared to models with longer warranties or more straightforward installation, this toilet emphasizes compactness and efficiency but demands careful planning during setup.
Pros:- High-efficiency flush reduces double flushes
- Compact, space-saving design fits in tight areas
- Includes extension pipe for flexible installation
Cons:- Installation may be challenging for some users
- Limited warranty period of 2 years
Best for: Small bathroom spaces or renovations where space and high flushing power are priorities
Not ideal for: Users seeking a longer warranty or easier installation without specialized plumbing knowledge
- Brand:maceratingflo
- Model Number:MTO00T01-A
- Number of Items:1
- Included Components:Extension pipe, fitting, toilet bowl, toilet seat, tank
- Warranty:2 years
Our verdict“This toilet offers a strong combination of space efficiency and flushing power but requires careful installation planning.”
Simple Project Rear Discharge Toilet with 19 Inch ADA Tall Toilet Bowl
This rear-discharge toilet from Simple Project combines ADA-height comfort with dual-flush water savings, making it ideal for accessibility-focused bathrooms. The 19-inch tall bowl aligns with ADA standards, easing use for seniors and mobility-challenged individuals. Its quiet, slow-close seat and rear or wall drain compatibility echo the advantages of the other tall models, like the SUPERFLO 19” Tall Toilet, but with a focus on straightforward installation for accessible needs. Still, it’s primarily designed for rear outlet setups, which limits flexibility, and some users may find extra installation components necessary. Its limited long-term durability data makes it a less certain choice for heavy-use environments.
Pros:- Height compliant with ADA standards for accessibility
- Dual-flush system saves water effectively
- Quiet, slow-close seat minimizes noise
Cons:- Limited compatibility with non-rear outlet plumbing
- Extra installation components may be needed
Best for: Accessibility-focused bathrooms needing a comfortable, dual-flush, rear outlet toilet
Not ideal for: Users with non-rear drain setups or who prefer elongated bowls for more spacious seating
- Brand:Simple Project
- Model Number:HT-120
- Number of Items:1
- Included Components:Extension Pipe, Installation Accessories, Instructions
- Water Flush:1.28 GPF / 0.8 GPF
- Height:19 inches
Our verdict“This toilet fits well for accessible bathrooms requiring a comfortable, efficient, rear outlet model, with some installation considerations.”
Skirted & Elongated Rear Outlet Toilet with 7″ Rough-In and Soft-Close Seat
This skirted, elongated rear outlet toilet stands out for its combination of efficient flushing and user comfort. Its tornado flush with 1.28 GPF outperforms many standard models like the Simple Project rear discharge toilet, offering a more powerful and water-efficient waste removal system. The soft-close seat enhances quiet operation, making it ideal for shared bathrooms. While installation may demand some plumbing skills, its included extension pipes provide flexibility for different setups. The limited warranty and focus on rear outlet configurations mean it’s best suited for experienced DIYers or professional installers who need a reliable, space-saving solution.
Pros:- Efficient tornado flush reduces water use while maintaining performance
- Soft-close elongated seat adds comfort and quietness
- Includes extension pipes for installation versatility
- Space-saving rear outlet design
Cons:- Installation may require advanced plumbing skills
- Limited to rear outlet configurations, reducing flexibility
- Warranty period is shorter than some competitors
Best for: Homeowners seeking a reliable, space-efficient rear outlet toilet with quiet operation and water savings.
Not ideal for: DIYers with limited plumbing experience or those needing a flexible outlet configuration, since installation may be complex.
- Outlet Diameter:3 inches
- Rough-In:7 inches
- Seat Height:17.6 inches
- Flush Rate:1.28 GPF
- Includes:Toilet seat, tank, bowl, extension pipes
- Warranty:1-year replacement, 2-year repair
Our verdict“This model suits users wanting a reliable, space-efficient rear outlet toilet with quiet operation and water savings, provided they can handle a somewhat involved installation.”
Rimless Flushing Rear Outlet Toilet with Tank, 18″ Comfort Height, Skirted, Elongated Two-Piece Back Discharge, 1.28 GPF, P-Trap, Extension Pipes Included
This rear outlet toilet with an 18-inch comfort height is tailored for renovation projects, especially those involving wall-mounted plumbing. Its rimless, skirted ceramic design makes cleaning effortless and enhances hygiene, similar to the sleek look of the ARES model. Compared to the Skirted & Elongated Rear Outlet Toilet, this unit offers a more modern aesthetic and better accessibility. Its wall discharge compatibility limits its flexibility, making it less suitable for standard floor setups. Professionals and renovators will appreciate the included P-trap and extension pipes for seamless integration into existing plumbing.
Pros:- Comfortable 18-inch height suitable for seniors
- Sleek, skirted ceramic surface simplifies cleaning
- Compatible with wall-mounted plumbing for renovation projects
- Includes P-trap and extension pipes for easy installation
Cons:- Limited to wall drain setups, reducing versatility
- Likely to require professional installation due to plumbing specifics
- Design focus on renovation limits use in standard floor setups
Best for: Renovators and homeowners upgrading their bathrooms with wall-mounted plumbing or seeking a modern, easy-to-clean rear outlet toilet.
Not ideal for: Homeowners with traditional floor drain setups or those requiring flexible outlet options, due to its wall discharge focus.
- Height:18 inches
- Flush Rate:1.28 GPF
- Installation Type:Wall discharge
- Material:High-gloss white ceramic
- Includes:Toilet bowl, water tank, seat, mounting kits, extension pipes
- Rough-in:7 inches
Our verdict“Ideal for renovation projects where wall discharge compatibility and modern design are priorities, but less suitable for standard floor plumbing.”
Simple Project Rear Discharge Toilet, 19″ ADA Tall Toilets for Seniors
This 19-inch tall toilet emphasizes comfort for users with mobility challenges, such as seniors or pregnant women, with a height that eases sitting and standing. Its dual flush system balances water efficiency with performance, similar to the ARES model but with a focus on simplicity and user comfort. While the soft-close seat adds quietness, the rear outlet configuration limits installation options, and some users report challenges during setup. Its straightforward design makes it ideal for those prioritizing accessibility and ease of use over installation flexibility.
Pros:- Height of 19 inches improves comfort for seniors
- Dual flush system conserves water
- Soft-close seat reduces noise
- Includes installation accessories for convenience
Cons:- Limited to rear outlet, reducing installation options
- Some users find the installation process challenging
- Less suitable for small bathrooms due to height
Best for: Elderly users or those with mobility issues needing a taller, comfortable toilet with efficient flushing.
Not ideal for: Homeowners seeking a more flexible or space-saving design, as the 19-inch height may not suit all bathroom layouts or preferences.
- Height:19 inches
- Flush Rate:1.6 GPF full, 1 GPF half
- Drain Outlet Position:Rear
- Includes:Curved pipe, seat, water parts, water tank, round bowl
- Model Number:HT-120-2
- Item Count:1
Our verdict“Best suited for seniors or mobility-challenged users prioritizing comfort and water efficiency, despite installation challenges.”
Compact 16.5” Two-Piece Rear Outlet Toilet with Extension Pipes and Soft-Close Seat
This compact rear outlet toilet with a 16.5-inch size is designed for bathrooms where space is limited. Its two-piece construction and included extension pipes facilitate installation in tight quarters, similar to the Maxwell model but with a focus on space efficiency. The soft-close seat and glazed surface add to the ease of use and maintenance. Compared to larger options like the ARES model, this unit sacrifices some size and comfort for a slimmer profile, making it ideal for small or narrow bathrooms where space-saving is a priority.
Pros:- Compact size fits narrow bathrooms
- Quiet soft-close seat for comfort
- Efficient flush reduces water use
- Glazed surface resists grime
Cons:- May require additional extension pipes depending on setup
- Limited to rear outlet configurations
- Smaller size may be less comfortable for some users
Best for: Owners of narrow or small bathrooms looking for a space-efficient rear outlet toilet that still offers comfort and easy maintenance.
Not ideal for: Users needing a larger, more comfortable seat or a flexible outlet configuration, as its size and outlet type are fixed.
- Size:16.5 inches
- Type:Two-piece
- Outlet:Rear
- Extension Pipes:Two types included
- Discharge:7-inch rough-in back discharge
- Seat:Soft-close
Our verdict“A practical choice for space-constrained bathrooms that need a rear outlet toilet with quiet operation and easy cleaning.”
ARES 18″ Tall Rear Outlet Toilet with Comfort Seat & Dual Flush Water Tank
The ARES 18-inch tall rear outlet toilet combines comfort, hygiene, and accessibility features. Its rimless 360° flush system ensures thorough cleaning, similar to the Rimless Flushing Rear Outlet Toilet, but with added emphasis on ease of installation via adjustable rough-in and multiple connectors. Its fully skirted exterior simplifies cleaning, and the tall height suits most users. While the heavy weight might complicate installation, the seamless design and dual flush system make it a strong contender for users prioritizing hygiene and durability in a rear outlet setup.
Pros:- Comfortable 18-inch height suitable for all users
- Rimless 360° flush for superior hygiene
- Seamless skirted exterior for easy cleaning
- Adjustable rough-in for easier installation
Cons:- Heavyweight can make installation more difficult
- Limited detailed long-term durability data
- No specific price info available
Best for: Users needing an accessible, hygienic toilet with modern features like rimless flushing and a tall, comfortable height.
Not ideal for: Those looking for a lightweight or budget-friendly option, as the model’s weight and advanced features come at a higher complexity and potentially higher cost.
- Height:18 inches
- Bowl Length:18.5 inches
- Type:Two-piece
- Flush System:Dual flush, rimless
- Discharge:Rear outlet, P-Trap
- Included Components:Flexible extension pipe, mounting screws, rigid extension pipe, toilet bowl & tank, toilet seat
Our verdict“This toilet provides a modern, hygienic, and accessible option for those willing to handle a heavier unit and complex installation process.”
Rear Discharge Toilet with Rimless Flush, 18” Comfort Height, Elongated Bowl, 1.28 GPF, Two Piece Modern Design
This rear discharge, two-piece toilet stands out primarily for its combination of comfort and ease of maintenance. The 18-inch height and elongated bowl make it ideal for users with mobility challenges or seniors, surpassing many standard-height models. Its rimless flush system not only conserves water at 1.28 GPF but also simplifies cleaning, unlike traditional rimmed toilets that trap grime. The sleek, skirted design offers a contemporary look and makes cleaning less of a chore. Compared with the Simple Project rear outlet model, it provides a more modern aesthetic and better water efficiency, though it requires wall-mounted plumbing, which can complicate installation. This choice works well for homeowners seeking comfort and style without sacrificing functionality, but it’s less suited for those with existing wall-mount setups or rental properties.
Pros:- Comfortable 18-inch height ideal for seniors and mobility issues
- Rimless flush reduces cleaning time and water usage
- Sleek skirted design enhances modern bathroom aesthetics
- Includes all necessary installation components
Cons:- Requires wall-mounted plumbing, limiting flexibility
- Limited warranty period of 2 years may concern some users
Best for: Homeowners prioritizing a stylish, comfortable, and easy-to-clean rear outlet toilet with modern features.
Not ideal for: Renters or those with existing traditional plumbing who prefer straightforward floor-mounted setups without wall modifications.
- Height:18 inches
- Bowl Shape:Elongated
- Water Usage:1.28 GPF
- Installation Type:Rear outlet, wall-mounted
- Material:High-gloss ceramic
- Includes:Toilet bowl, water tank, seat, mounting kits, extension pipes
- Rough-in:7 inches
Our verdict“This toilet is best for those seeking a comfortable, stylish rear outlet option with modern cleaning features, provided wall-mounted plumbing is feasible.”
Maxwell 1.28 GPF Wall Hung Back Outlet Combo: 21-970 Bowl with 28-970 Tank, White
The Maxwell wall-hung toilet distinguishes itself with a compact form and adjustable installation, making it ideal for small or contemporary bathrooms. Its ADA-compliant height of 15.75 inches offers comfortable use comparable to the American Standard chair height model, but with a sleeker, wall-mounted design that frees up floor space. The powerful flush, reinforced by dual siphon jets and a large 3-inch flush valve, ensures effective waste removal, outperforming some traditional gravity models like the Simple Project rear outlet toilet. However, its weight of over 100 pounds and in-wall installation requirements mean it’s less suitable for DIYers or those with limited support options. This model makes the most sense for modern homes that value space efficiency and a clean look, but less so for users who want a straightforward, floor-mounted setup or need a wider color choice.
Pros:- Compact, space-saving wall-mounted design
- ADA height for comfortable use
- Powerful flush with dual siphon jets and large flush valve
- Adjustable installation for in-wall plumbing
Cons:- Heavy weight complicates installation without professional help
- Limited color options (white only)
Best for: Bathroom remodelers seeking a space-efficient, modern, wall-hung toilet with strong flushing power.
Not ideal for: DIY enthusiasts or users with existing traditional plumbing setups who prefer straightforward installation without wall support.
- Brand:Gerber
- Model Number:G0020021
- Color:White
- Height:15.75 inches
- Weight:105 lbs
- Flush Rate:1.28 GPF
- Bowl Shape:Elongated
- Installation:Wall hung
- Trapway:2 inches glazed
Our verdict“This toilet suits modern, space-conscious bathrooms that need a powerful flush and adjustable installation, especially in new builds or remodels with support for wall mounting.”
American Standard Yorkville Two-Piece Pressure Assisted Toilet, Chair Height, Elongated Front, White, 1.6 GPF
This pressure-assisted toilet from American Standard emphasizes power and water efficiency. Its 1.6 GPF flush, combined with pressure-assisted siphon jet technology, ensures a strong, reliable flush—especially useful in high-traffic or commercial settings. The chair-height of 16-1/2 inches makes it accessible for users with mobility concerns, aligning closely with the Simple Project rear outlet model’s comfort focus, but with a more robust, pressure-based flush system. The tradeoff is increased noise levels and potentially higher maintenance needs due to the pressure mechanism, compared to gravity-fed options like the SuperfLo rear outlet toilet. This model is ideal for those prioritizing a high-efficiency, powerful flush in a traditional, floor-mounted setup, but less suited for users who prefer a quieter operation or simpler maintenance.
Pros:- Powerful pressure-assisted flush clears waste effectively
- Higher efficiency with 1.6 GPF water use
- Chair height for easier access
- Reliable siphon jet technology
Cons:- Potentially louder than gravity flush toilets
- Requires more maintenance and repairs over time
Best for: Users needing a high-powered, water-efficient toilet for busy households or commercial use that can handle heavy usage.
Not ideal for: Quiet-focused users or those seeking a low-maintenance, traditional gravity flush toilet for residential use.
- Brand:American Standard
- Model:2878.016.020
- Color:White
- Flush Rate:1.6 GPF
- Chair Height:16-1/2 inches
- Trapway Diameter:2-1/8 inches
Our verdict“This toilet is best for high-traffic spaces where a powerful, water-efficient flush is needed, accepting some noise and maintenance tradeoffs.”
Simple Project Rear Outlet Toilet with Tank, 19 Inch ADA Height
This rear outlet toilet is designed with comfort and ease of use in mind, making it a strong choice for seniors or individuals with mobility issues. Its 19-inch ADA height closely matches the height of many commercial models, providing a comfortable seating position that reduces strain on knees and waist. The dual flush system offers water savings comparable to the 1.28 GPF options, while the soft-close seat adds convenience and longevity. Its P-trap design improves drainage and odor control, outperforming some simpler models like the SUPERFLO Tall Toilet. However, careful measurement is needed to ensure fit, and installation can be more complex for non-professionals. This model makes sense for users prioritizing comfort and mobility support in a rear outlet configuration, but not for those seeking a minimalist or quick-install solution.
Pros:- Comfortable 19-inch height suitable for seniors
- Dual flush technology for water savings
- Soft-close seat for added comfort
- Efficient P-trap prevents odors
Cons:- Installation requires precise measurement and planning
- No specific warranty details provided
Best for: Seniors or those with mobility issues who need a comfortable, reliable rear outlet toilet with dual flush technology.
Not ideal for: DIYers or users with limited space planning who may face installation challenges or require a straightforward setup.
- Height:19 inches
- Flush Technology:1/1.28 GPF dual flush
- Type:Rear outlet
- Material:Ceramic
- Includes:Toilet bowl, extension pipe, soft-close seat, water tank
- Model Number:HT-120-2
Our verdict“This toilet excels for users needing a comfortable, mobility-friendly rear outlet option with dual flush, provided installation considerations are met.”
How We Picked
This roundup evaluates back outlet toilets based on several critical factors that matter most to buyers. Performance metrics include flushing power, water efficiency, and reliability. Ease of installation and maintenance also played a key role, especially for DIYers or those replacing existing units. Build quality and durability were assessed through material choice and construction, ensuring longevity. Finally, value was considered by weighing features against price, helping identify models that deliver the best performance for their cost. These criteria ensure the top picks serve different needs while maintaining a high standard of quality.Factors to Consider When Choosing Back Outlet Toilet
Choosing the right back outlet toilet involves more than just matching it to your bathroom’s plumbing. It’s important to consider compatibility with your space, user comfort, and water efficiency. Understanding these factors can help prevent costly mistakes and ensure your investment meets your needs for years to come.Size and Rough-In Dimensions
Back outlet toilets come with varying rough-in measurements, typically 12, 14, or 18 inches. Ensuring compatibility with your existing plumbing is essential; otherwise, installation can become complicated or require extensive modifications. For smaller bathrooms, compact or 16.5-inch models may save space, but they might compromise comfort for taller users. Always measure your space carefully before choosing, and consider models with adjustable or extension pipes if needed.
Comfort Height and Bowl Shape
Height options range from standard to ADA-compliant heights, which are generally 17-19 inches and provide easier seating and standing for users with mobility issues. Elongated bowls tend to be more comfortable, especially for larger or taller individuals, but they also require slightly more space. Round bowls are more space-efficient but can feel less comfortable over long use. Think about who will be using the toilet most often and select a size that balances comfort with space constraints.
Flushing System and Water Efficiency
Modern back outlet toilets feature either gravity-fed, pressure-assisted, or rimless flushing systems. Gravity flush models are reliable and straightforward but may require more water per flush. Pressure-assisted models deliver more power, reducing blockages, though they can be noisier and more expensive. Rimless designs improve hygiene and ease of cleaning, appealing to those prioritizing maintenance. Consider your water conservation goals and how much noise is acceptable in your household when selecting a system.
Material and Build Quality
Most toilets are made from ceramic or porcelain, with higher-quality models featuring thicker, more durable coatings that resist staining and chipping. The seat and hardware also matter; soft-close seats and sturdy hinges add comfort and longevity. Cheaper models may use lighter materials that crack or stain more easily, leading to higher long-term costs. Investing in a well-constructed model ensures a lower maintenance experience and a longer lifespan.
Ease of Installation and Maintenance
Some back outlet toilets are designed for straightforward replacement, with features like adjustable rough-in and included extension pipes. Others may require professional plumbing work, especially if retrofitting older systems. Consider models with clear installation instructions or those compatible with your existing plumbing to save time and money. Maintenance features such as smooth, rimless bowls and accessible flushing mechanisms can also reduce cleaning effort and improve hygiene.
Frequently Asked Questions
Can I replace a standard toilet with a back outlet model?
Yes, replacing a standard toilet with a back outlet version is usually straightforward if your plumbing setup matches the back outlet design. However, it’s important to verify the rough-in measurement and ensure the flange and drain line are compatible. In some cases, minor plumbing adjustments or extension pipes may be needed. Consulting with a professional can help confirm compatibility and ensure a secure, leak-free installation.
Are back outlet toilets more prone to clogging?
Back outlet toilets are not inherently more prone to clogging than other types, but their performance depends on the flushing system and build quality. Models with powerful, pressure-assisted flushes or rimless designs tend to clear waste more effectively, reducing clog risk. Proper installation and regular maintenance also play critical roles in preventing blockages, regardless of outlet type.
How do I know if a back outlet toilet will fit in my bathroom?
Measuring your existing rough-in distance is the first step; most back outlet toilets require an 18-inch rough-in, but some models are available with 12 or 14-inch options. Check the width and available space around the toilet as well, especially if you want a larger bowl or higher seat. Consulting your current plumbing blueprint or measuring directly can prevent costly mismatches and installation delays.
What features should I look for in a back outlet toilet for seniors?
Seniors benefit from toilets that offer ADA compliance, such as higher seats (17-19 inches) for easier sitting and standing. Elongated bowls provide additional comfort, and soft-close seats reduce the risk of injury or noise disturbance. Additionally, models with sturdy construction and easy-to-clean surfaces help maintain hygiene and safety. Prioritizing these features makes daily use safer and more comfortable.
Is a pressure-assisted back outlet toilet worth the extra cost?
Pressure-assisted toilets generally provide more powerful and efficient flushing, making them a good choice for households with frequent use or where clogging is a concern. They tend to be quieter in operation and use less water per flush, which can save money over time. However, they are usually more expensive upfront and can be noisier during operation. Evaluating your household needs and budget will help determine if this feature justifies the extra expense.
Conclusion
For those seeking the best overall balance of performance, comfort, and ease of installation, the SuperfLo Rear Outlet Toilet with 19-Inch Tall Bowl makes a compelling choice. Budget-conscious buyers or DIY enthusiasts might prefer the Simple Project Rear Discharge Toilet for straightforward setup. For users prioritizing water efficiency and hygiene, models with rimless flush systems are ideal. Seniors or those with mobility challenges should consider ADA-compliant, high-height options like the Ares 18″ Tall Rear Outlet Toilet. Finally, if you want a premium, space-saving design, the Maxwell Wall Hung Back Outlet Combo offers modern style and high performance. Your choice hinges on your bathroom space, user needs, and budget constraints.
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