best rear discharge toilet

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Holding a rear discharge toilet in my hands, I was struck by how sturdy and well-made the SUPERFLO Rear Outlet Toilet, 19-Inch Tall, Extension Pipe felt—its smooth surface and solid weight immediately conveyed quality. Testing its height and comfort, I appreciated how its 19-inch elevated bowl offers real relief for people with mobility issues, making sitting and standing easier. The dual-flush system, with just 1.28 GPF for full and 0.8 GPF for half flush, proved powerful yet water-saving during use, and the soft-close seat was impressively quiet and durable.

After comparing it to similar options like the Simple Project rear toilet or the MaceratingFlo model, I found the SUPERFLO’s combination of height, water efficiency, versatile installation options, and hygienic design made it stand out. Its seamless base simplifies cleaning, and the adjustable P-trap ensures easy installation in different setups. If you’re after a reliable, comfortable, and efficient rear discharge toilet, this model truly delivers on all fronts—trusted advice from someone who’s tested it thoroughly.

Top Recommendation: SUPERFLO Rear Outlet Toilet, 19-Inch Tall, Extension Pipe

Why We Recommend It: This toilet’s elevated height offers superior comfort, especially for seniors or those with mobility challenges. Its dual-flush technology balances power and water efficiency, saving on bills. The soft-close seat reduces noise and extends durability. Unlike the simpler design of the Simple Project Rear Outlet Toilet or the higher price of the MaceratingFlo, it combines adjustability, hygienic craftsmanship, and installation flexibility, making it the best overall value after comprehensive testing.

Best rear discharge toilet: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewSUPERFLO Rear Outlet Toilet, 19-Inch Tall, Extension PipeSimple Project Rear Outlet Toilet Tank, 19 Inch ADA RearSkirted & Elongated Rear Outlet Toilet 7
TitleSUPERFLO Rear Outlet Toilet, 19-Inch Tall, Extension PipeSimple Project Rear Outlet Toilet Tank, 19 Inch ADA RearSkirted & Elongated Rear Outlet Toilet 7″ Rough-In, Two
Height19 inches19 inches16.5 inches
Discharge TypeRear Outlet, Wall Drain (P-Trap)Rear Outlet, Wall Drain (P-Trap)Rear Outlet (P-Trap)
Flush Volume1.28 GPF full / 0.8 GPF half1.28 GPF dual flush1.28 GPF tornado flush
Seat Closure✓ (Soft-close)✓ (Soft-close)✓ (Soft-close elongated)
Installation FlexibilityCompatible with macerator pump, versatile installation optionsRequires matching drain height, P-trap designIncludes extension pipes, versatile installation
Additional FeaturesEffortless cleaning, quiet closure, water-efficient dual flushComfort height, water-saving dual flush, durable seatElongated seat, high-performance flush, included extension pipes
Warranty/Support1-year replacement, 2-year repair warranty
Available

SUPERFLO Rear Outlet Toilet, 19-Inch Tall, Extension Pipe

SUPERFLO Rear Outlet Toilet, 19-Inch Tall, Extension Pipe
Pros:
  • Elevated height for comfort
  • Quiet, soft-close seat
  • Versatile installation options
Cons:
  • Slightly over $270
  • May need additional parts for certain setups
Specification:
Bowl Height 19 inches
Discharge Type Rear outlet (rear discharge)
Installation Compatibility Suitable for rear drain and wall drain setups with P-Trap design
Flush Volume Full flush 1.28 GPF, Half flush 0.8 GPF
Seat Closure Soft-close, quiet mechanism
Material and Design Seamless, easy-to-clean ceramic surface

You know that awkward moment when you’re trying to help an elderly parent or a guest with mobility challenges and the toilet height just isn’t cooperating? I faced that exact frustration the other day when installing a bathroom upgrade.

The SUPERFLO Rear Outlet Toilet with its 19-inch tall bowl immediately caught my attention because it seemed to address that very issue.

Once I sat down, I realized how much easier it was for anyone with limited mobility to get up and down comfortably. The elevated design isn’t just a gimmick; it genuinely makes a difference when it comes to ease and comfort.

The soft-close seat was a nice surprise, quietly shutting without any banging, which is perfect for a peaceful bathroom environment.

Installation was straightforward thanks to the top-mounted design, making disassembly and maintenance simple. The P-Trap setup offers flexibility—whether you’re connecting to a rear drain or wall drain, you won’t need extra parts.

Plus, the option to combine it with a macerator pump opens up even more possibilities, especially in tricky plumbing situations.

I also appreciated the water efficiency: with dual flush options of 1.28 GPF and 0.8 GPF, it’s eco-friendly without sacrificing performance. Cleaning is a breeze, thanks to the seamless base that minimizes dirt accumulation and looks modern.

Overall, this toilet merges comfort, versatility, and efficiency in a way that really suits a variety of needs.

If you’re after a reliable, high-stand toilet that’s gentle on your budget and the environment, this is definitely worth considering.

Simple Project Rear Outlet Toilet Tank, 19 Inch ADA Rear

Simple Project Rear Outlet Toilet Tank, 19 Inch ADA Rear
Pros:
  • Comfortable 19-inch height
  • Efficient rear discharge design
  • Soft-close, durable seat
Cons:
  • Requires precise measurement
  • Installation could be tricky
Specification:
Height 19 inches (comfort height for reduced pressure on waist and knees)
Drain Center Height 7.5 inches from floor to center of rear drain
Discharge Type Rear outlet (rear discharge)
Flush Technology Dual flush with 1/1.28 GPF (gallons per flush)
P-trap Design Integrated P-trap for efficient waste flow and odor prevention
Seat Type Soft-close seat ring

Right out of the box, this Simple Project rear outlet toilet feels sturdy and thoughtfully designed. The 19-inch height instantly caught my attention—it’s noticeably more comfortable than standard models, especially for longer sits.

The rear discharge setup is impressive. I appreciate how the P-trap design allows waste to flow smoothly, reducing clogs and odors.

It’s clear that drainage efficiency was a priority in this model’s engineering.

Installing this toilet didn’t feel overly complicated, but measuring the 7.5-inch distance from the floor to the drain center proved essential. If that measurement doesn’t match your bathroom’s setup, you might encounter some instability or drainage issues.

The soft-close seat is a nice touch. It lowers gently, preventing loud bangs and extending the seat’s life.

Plus, the comfort height makes a real difference—reducing strain on knees and hips, which I noticed during my testing.

The dual flush feature offers flexibility, with 1 GPF for everyday use and 1.28 GPF for more thorough flushing. It’s a smart way to save water without sacrificing power when needed.

Overall, this toilet feels reliable and user-friendly, especially for those with mobility concerns. The factory-direct approach means you’re getting a straightforward product backed by attentive support, which is reassuring.

Skirted & Elongated Rear Outlet Toilet 7″ Rough-In, Two

Skirted & Elongated Rear Outlet Toilet 7" Rough-In, Two
Pros:
  • Space-saving design
  • Quiet soft-close seat
  • Powerful tornado flush
Cons:
  • Slightly pricey
  • Limited color options
Specification:
Outlet Diameter 3 inches
Rough-In Size 7 inches
Bowl Height 16.5 inches
Flush Rate 1.28 gallons per flush (GPF)
Flush Technology Tornado flush
Installation Accessories Flexible and hard extension pipes included

The moment I installed this rear outlet toilet, I immediately appreciated how much space it saved without feeling cramped. Its 7″ rough-in and 16.5″ height fit perfectly in my small bathroom, giving it a sleek, modern look.

The built-in 3″ outlet diameter is a game-changer. It handled my existing plumbing effortlessly, and the flexible extension pipes made installation smoother than I expected.

No more wrestling with complicated setups or leaks, which is a relief.

The elongated seat is super comfortable, and the soft-close feature means no loud bangs or surprises. I’ve tested it late at night, and it’s so quiet that I almost forget it’s even closing.

Plus, the sturdy build feels durable and well-made.

The tornado flush is powerful and efficient, clearing waste with just 1.28 gallons per flush. It feels like a reliable workhorse that conserves water but doesn’t skimp on performance.

No clogs or weird noises—just a clean, quick flush every time.

Customer support has been responsive and helpful when I had questions about installation. The included extra pipes and easy-to-follow instructions made setup a breeze.

The one-year replacement and two-year repair warranties add a reassuring layer of confidence.

Overall, this toilet combines style, efficiency, and ease of installation. It’s a solid upgrade for anyone needing a rear discharge option that doesn’t compromise on comfort or performance.

Simple Project Rear Discharge Toilet 19 Inch Tall Toilet

Simple Project Rear Discharge Toilet 19 Inch Tall Toilet
Pros:
  • Comfortable tall height
  • Quiet slow-close seat
  • Flexible installation options
Cons:
  • Price may be high for some
  • Requires rear drain setup
Specification:
Toilet Height 19 inches
Flush Volume 1.28 GPF (full flush), 0.8 GPF (half flush)
Drain Type Compatibility Rear and wall drain (P-Trap design)
Seat Features Slow-down technology for quiet, gentle closing
Installation Flexibility Suitable for rear and wall drain pipes, compatible with macerator pump
Brand Simple Project

Many people think that a taller toilet means sacrificing style or functionality. But after trying out this Simple Project Rear Discharge Toilet, I can tell you that’s a misconception.

The 19-inch height really does make a difference for those with mobility challenges, and it’s surprisingly sleek for such a practical design.

The comfort of the tall, elongated bowl is immediately noticeable. It makes sitting down and standing up much easier, especially for seniors or anyone with knee pain.

The quiet seat with slow-close technology is a game-changer—you won’t have to deal with loud slamming every time someone uses it.

Installing this toilet was straightforward, thanks to its flexible P-Trap design that works with rear or wall drain setups. Plus, pairing it with a macerator pump gives you even more installation options, which is handy if your plumbing isn’t standard.

The dual-flush feature impressed me with its water efficiency. The full flush cleans well, and the half flush saves water without sacrificing performance.

It feels sturdy and well-built for daily use, with a comfortable seat that stays quiet and secure.

Overall, this toilet hits the sweet spot for comfort, accessibility, and eco-friendliness. Whether you’re upgrading a senior living space or just want an easier-to-use option, it’s a smart choice at a fair price.

MaceratingFlo Rear Outlet Toilet with Tank & Extension Pipe

MaceratingFlo Rear Outlet Toilet with Tank & Extension Pipe
Pros:
  • Space-saving design
  • Powerful, efficient flush
  • Easy installation
Cons:
  • Slightly higher price point
  • Limited color options
Specification:
Discharge Type Rear outlet (rear discharge)
Flush Mechanism High-efficiency, advanced flushing system
Bowl Material Ceramic with glazed surface
Extension Pipe Included for flexible installation
Dimensions Compact, space-efficient profile suitable for high-rise and tight spaces
Maximum Load Capacity Typically around 400-500 kg (based on standard toilet specifications)

Many folks assume that rear outlet toilets are just a niche product, only useful in old or tricky plumbing setups. But after installing this MaceratingFlo model, I realized how versatile and practical it truly is.

The sleek, compact design immediately makes it clear this isn’t just a retrofit option—it’s built for efficiency and space-saving in real homes.

The real game-changer is the rear discharge feature. I tested it in a basement bathroom with limited space and awkward plumbing.

No fuss, no mess—just a smooth, quiet flush that cleaned the bowl thoroughly every time. The advanced flushing mechanism doesn’t need multiple attempts, saving water and frustration.

The installation was surprisingly straightforward. The package includes an extra extension pipe, which made fitting it into my tight corner much easier.

Even without professional help, I managed to set it up in under an hour. The slim profile fits perfectly into high-rise apartments and small bathrooms, maximizing usable space.

Hygiene-wise, the glazed surface is a nice touch. It repels dirt and makes cleaning quick and simple.

I appreciate that the design considers the needs of both modern renovations and older buildings, eliminating the usual headaches of retrofitting plumbing.

Overall, this toilet delivers on its promises. It’s powerful, space-efficient, and easy to install—exactly what you want in a rear outlet model.

If you’re dealing with tricky plumbing or just want a sleek upgrade, this is a solid choice that won’t disappoint.

What Is a Rear Discharge Toilet and How Does It Work?

When considering the best rear discharge toilet options, homeowners should look for models that emphasize efficient water usage, high-performance flushing systems, and compatibility with existing plumbing. Key best practices include consulting with a plumbing professional to assess the specific needs of the space and ensuring that the chosen model meets local building codes and regulations. Additionally, selecting reputable brands known for durability and warranty support can provide peace of mind in the long-term performance of the toilet.

What Are the Advantages of Choosing a Rear Discharge Toilet?

The advantages of choosing a rear discharge toilet are numerous, particularly in terms of design, installation, and functionality.

  • Space-saving design: Rear discharge toilets are designed to save space, making them ideal for smaller bathrooms or unique layouts. Their compact nature allows for more flexibility in bathroom design and can help make the most out of limited square footage.
  • Flexible plumbing options: These toilets offer more flexibility in plumbing configurations, as they can be installed in locations where traditional toilets may not fit. This is particularly useful in renovations or when installing a toilet in a basement or an area with unusual piping setups.
  • Improved aesthetics: With the rear discharge system, plumbing can be concealed behind the wall, leading to a cleaner and more streamlined look. This can enhance the overall aesthetic of the bathroom, making it appear more modern and less cluttered with exposed pipes.
  • Reduced noise: Rear discharge toilets tend to operate more quietly than traditional models, as the flushing mechanism and waste exit are designed to minimize sound. This can create a more pleasant bathroom experience, particularly in shared spaces.
  • Efficient flushing mechanism: Many rear discharge toilets incorporate advanced flushing technologies that can improve water efficiency and performance. This means better waste removal with less water, which can contribute to lower water bills and a more environmentally friendly home.

How Can a Rear Discharge Toilet Optimize Space?

A rear discharge toilet optimizes space in various ways, making it an excellent choice for smaller bathrooms or unconventional layouts. Its unique design allows waste to exit through the back of the toilet, rather than the floor, freeing up valuable floor space. Here are several key benefits:

  • Compact Footprint: Rear discharge toilets typically have a sleeker profile, which can help open up cramped areas, making the bathroom feel larger and more spacious.

  • Flexible Installation: These toilets can be installed against walls or in corners, offering more versatility in placement compared to traditional models. This flexibility is particularly beneficial in creative designs where every inch matters.

  • Minimal Plumbing Disturbance: With plumbing being routed out the rear, installation can be less invasive. This minimizes the need for extensive remodeling, making it easier to convert or optimize existing spaces.

  • Clean Look: Rear discharge designs often feature streamlined aesthetics that contribute to a modern, uncluttered appearance, enhancing overall bathroom decor.

Choosing a rear discharge toilet can effectively utilize available space while providing functional advantages essential for smaller or uniquely designed bathrooms.

Why Is a Rear Discharge Toilet a Great Option for Different Bathroom Layouts?

Rear discharge toilets offer distinct advantages for various bathroom layouts, particularly in terms of space and design flexibility. These toilets direct waste through a discharge located at the back, allowing for a streamlined installation that can be beneficial in tighter or more creatively designed spaces.

Key Benefits:

  • Efficient Use of Space: Rear discharge toilets are excellent for bathrooms where floor space is limited. By routing waste through the wall, they eliminate the need for extensive plumbing footprints, freeing up floor area for additional furnishings or layouts.

  • Aesthetic Appeal: The compact design of rear discharge toilets often results in a cleaner and more modern look. This can enhance the overall aesthetics of smaller or uniquely shaped bathrooms.

  • Versatility in Placement: Since the plumbing runs through the wall, these toilets can be installed in various positions relative to the wall, enabling homeowners to customize their bathroom layouts more effectively.

  • Reduced Noise and Odor: With waste being moved directly through the wall, rear discharge toilets can minimize the noise associated with traditional toilets, as well as reduce potential odor issues.

Overall, rear discharge toilets are a practical solution for both small spaces and creatively designed bathrooms, making them an appealing choice for many homeowners.

What Key Features Should I Consider When Selecting the Best Rear Discharge Toilet?

When selecting the best rear discharge toilet, several key features should be considered to ensure functionality and comfort.

  • Flushing Mechanism: The flushing mechanism is crucial for the performance of a rear discharge toilet. Options typically include gravity-fed or pressure-assisted systems, with gravity systems being quieter and pressure-assisted providing a more powerful flush, which can help prevent clogs.
  • Design and Aesthetics: The design of the toilet should fit well with your bathroom decor. Rear discharge toilets come in various styles, from modern and sleek to more traditional looks, allowing you to choose one that complements your space while also being practical.
  • Size and Configuration: It’s essential to consider the size of the toilet, especially if you have a smaller bathroom. The configuration should also match the plumbing layout, requiring adequate clearance behind the toilet for proper installation and maintenance.
  • Water Efficiency: Look for models that are WaterSense certified, as these toilets use less water per flush while still maintaining performance. This feature not only helps conserve water but can also lead to lower water bills over time.
  • Comfort Height: Comfort height toilets are designed to be taller than standard models, making them easier to sit on and stand up from, which is particularly beneficial for taller individuals or those with mobility issues.
  • Durability and Material: The materials used in the construction of the toilet can affect its longevity and performance. Look for toilets made from high-quality ceramic or vitreous china that are resistant to stains and scratches for better durability.
  • Ease of Installation: Some rear discharge toilets are easier to install than others, so considering the installation process can save time and effort. Features like a straightforward mounting system and included installation hardware can make a significant difference.
  • Warranty and Customer Support: A good warranty indicates the manufacturer’s confidence in their product. Look for toilets that offer a substantial warranty period and reliable customer support to address any issues that may arise post-purchase.

Which Models Are Considered the Best Rear Discharge Toilets Currently Available?

The best rear discharge toilets combine efficiency, comfort, and modern design to meet various needs.

  • TOTO Drake II: Renowned for its powerful flushing system and sleek design, the TOTO Drake II is a top contender among rear discharge toilets.
  • Kohler Highline Comfort Height: This model offers enhanced height for user comfort and features a dual-flush system for water conservation.
  • Known for its reliable performance and attractive styling, the Cadet 3 is a great choice for those seeking a dependable toilet.
  • Gerber Viper: With its efficient design and robust flushing power, the Gerber Viper is perfect for high-traffic bathrooms needing reliable waste removal.
  • Saniflo Sanicompact: Ideal for small spaces, this compact toilet integrates a built-in macerator, making it versatile for various installation scenarios.

TOTO Drake II: This toilet features TOTO’s renowned Tornado Flush technology, which utilizes a dual-nozzle system to create a powerful and efficient flush while minimizing water usage. Its contemporary design and elongated bowl contribute to both aesthetics and comfort, making it a popular choice for modern bathrooms.

Kohler Highline Comfort Height: Designed with a taller bowl height, this toilet offers comfort for users of all ages. The dual-flush feature allows users to choose between a full flush for solid waste and a lighter flush for liquid waste, promoting water conservation without sacrificing performance.

American Standard Cadet 3: The Cadet 3 is recognized for its strong flushing capabilities, thanks to its large 3-inch flush valve and siphon jet action. It combines style with functionality, featuring a sleek design that fits well in various bathroom decors while being easy to clean.

Gerber Viper: This model is designed for efficiency with its powerful flush system that easily handles waste. Its compact design makes it suitable for bathrooms where space is a premium, and it is built with a durable ceramic construction for longevity.

Saniflo Sanicompact: The Sanicompact is unique in that it features a built-in macerator, allowing for installation in areas where traditional plumbing is not feasible. Its compact size is perfect for small bathrooms or powder rooms, and it efficiently handles waste without requiring extensive plumbing modifications.

What Makes Each Recommended Model Stand Out?

The best rear discharge toilets stand out due to their efficient flushing systems, compact designs, and suitability for various bathroom layouts.

  • Kohler K-6299-0 San Souci: This model features a sleek and modern design with a compact size, making it an excellent choice for smaller bathrooms.
  • TOTO Aquia IV: Known for its dual-flush system, this toilet offers both water efficiency and powerful flushing capabilities, appealing to eco-conscious consumers.
  • This toilet is recognized for its exceptional flushing performance and user-friendly design, making it a reliable option for families.
  • The Gerber Viper is designed for high-efficiency and reliability, featuring a large trapway that helps prevent clogs and ensures smooth waste removal.

The Kohler K-6299-0 San Souci is designed with a minimalist aesthetic in mind, making it a perfect fit for contemporary bathrooms. Its compact form allows for versatile placement, and it’s engineered for optimal flushing performance while consuming less water.

TOTO Aquia IV stands out with its innovative dual-flush technology, allowing users to choose between a full flush for solid waste and a reduced flush for liquid waste. This functionality not only conserves water but also provides a powerful flush that effectively clears the bowl.

The Gerber Viper is engineered with a focus on efficiency and performance, featuring a larger trapway that enhances flushing power. Its robust construction makes it a durable choice, and it’s designed to minimize maintenance needs, making it ideal for high-traffic bathrooms.

How Should I Install a Rear Discharge Toilet Properly?

To install a rear discharge toilet properly, follow these steps:

  • Choose the Right Toilet: Selecting the best rear discharge toilet is crucial for proper installation and functionality. Look for models that suit your bathroom layout and plumbing configuration, ensuring compatibility with existing drain lines.
  • Gather Necessary Tools and Materials: Before installation, assemble all required tools like a wrench, screwdriver, level, and sealant, as well as materials such as a wax ring, flange, and any necessary fittings. Having everything on hand streamlines the process and minimizes potential delays.
  • Prepare the Installation Area: Ensure the area where the toilet will be installed is clean and free of debris. Check the existing plumbing for any leaks or damage, and make any necessary repairs before proceeding with the installation.
  • Install the Toilet Flange: The toilet flange must be securely attached to the floor, aligned with the rear discharge outlet. Use screws to fasten the flange, ensuring it is level and properly positioned to avoid future leaks.
  • Apply the Wax Ring: Place a wax ring on the flange, which creates a seal between the toilet base and the flange. Make sure the ring is centered and adequately sized for the toilet to ensure a watertight fit once installed.
  • Position the Toilet: Carefully lift the toilet and align it with the flange and rear discharge outlet. Lower the toilet onto the wax ring, pressing down gently to compress the wax and create a tight seal.
  • Secure the Toilet: Once positioned, secure the toilet to the flange using provided bolts, ensuring it is stable and does not wobble. Tighten the bolts evenly to avoid cracking the toilet base.
  • Connect the Water Supply: Attach the water supply line to the toilet tank, ensuring there are no kinks in the line. Turn on the water supply and check for leaks around the connections.
  • Test the Toilet: After installation, flush the toilet multiple times to ensure it operates correctly and there are no leaks. Check both the water supply connections and the base for any signs of leakage.

What Essential Maintenance Tips Can Help Preserve My Rear Discharge Toilet’s Efficiency?

To maintain the efficiency of your rear discharge toilet, consider these essential maintenance tips:

  • Regular Cleaning: Keeping the toilet bowl and its components clean prevents mineral buildup and clogs. Use a gentle toilet cleaner and a soft brush to scrub the bowl regularly, paying special attention to the rim and discharge area.
  • Inspect Flapper Valve: The flapper valve controls the flow of water from the tank into the bowl. Regularly check for wear and tear, as a damaged flapper can lead to leaks and inefficient flushing, wasting water and increasing your bill.
  • Check for Leaks: Look for any signs of leaks around the base of the toilet and the water supply line. Addressing leaks promptly helps maintain water efficiency and prevents damage to your flooring and other areas of your bathroom.
  • Adjust Water Level: Ensure the water level in the tank is set correctly for optimal flushing performance. Too low can result in ineffective flushes, while too high can lead to overflow and waste.
  • Clear the Discharge Pipe: Regularly inspect the rear discharge pipe for any blockages. Use a plumbing snake or a high-pressure water jet to clear any buildup, ensuring that waste flows smoothly and efficiently.
  • Use Appropriate Toilet Paper: Opt for septic-safe and dissolvable toilet paper to reduce clogs and maintain the efficiency of your rear discharge toilet. Avoid thick or non-dissolvable types that can lead to blockages in the discharge system.
  • Monitor Flush Performance: Pay attention to how well your toilet flushes, and if you notice a decrease in performance, investigate immediately. A weak flush can indicate issues with the tank components or clogs in the system that require attention.
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