Choosing a high efficiency toilet means balancing water savings with reliable flushing performance. The Elongated One Piece Toilet with 17.3″ ADA Comfort Height stands out as the best overall due to its comfort and dual flush system. For those prioritizing affordability, the Gerber Maxwell Crest offers solid performance at a lower price point. The One Piece Sleek Modern Toilet appeals to buyers seeking a contemporary design with efficient water use. Tradeoffs in this category often involve balancing water savings against flushing power or upfront costs. Continue reading for a detailed breakdown of these options and what matters most in your decision.
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Key Takeaways
- The top picks combine dual-flush systems with comfort-height designs for improved usability and water savings.
- Price varies significantly; the most advanced features often come at a premium, but good value options exist.
- One-piece designs tend to offer easier cleaning and modern aesthetics, but may be more expensive than two-piece models.
- ADA compliance is a key feature for accessibility, especially in homes with mobility concerns.
- Flushing performance can differ based on design and water efficiency, impacting user satisfaction.
| high efficiency toilet | Rough-In | Height |
|---|---|---|
| Elongated One Piece Toilet wit | 12 inches | — |
| Gerber Maxwell Crest Elongated | — | — |
| HOROW HR-ST076WD Dual Flush El | — | 28 inches |
| Elongated One Piece Toilet wit | 12 inches | — |
| One Piece Elongated Toilet wit | 12 inches | 17.5 inches |
| American Standard H2Option Dua | — | Chair height |
| HOROW T0338W One Piece Toilet | 12" | — |
| One Piece Sleek Modern Toilet | 12 inches | — |
| TOTO Drake Two-Piece Elongated | — | Universal Height |
| Sonderzone Elongated One Piece | 12 inches | 17.3 inches |
More Details on Our Top Picks
Elongated One Piece Toilet with 17.3″ ADA Comfort Chair Height, Dual Flush 1.1/1.6 GPF, Soft Closing Seat, 12″ Rough-In
This one-piece design stands out for its combination of comfort and simplicity, featuring a 17.3-inch ADA-compliant height that makes sitting and standing easier, especially for seniors or those with mobility challenges. Its dual flush system balances water savings with effective waste removal, making it a strong choice compared to traditional models like the TOTO Drake, which may lack ADA height but excel in performance. The seamless, ceramic construction ensures easy cleaning and minimal maintenance, ideal for busy households. However, its heavier weight and 12-inch rough-in requirement can pose installation challenges for DIYers or those with older plumbing. Overall, this model is best suited for homeowners seeking long-term comfort combined with water efficiency, willing to handle a slightly heavier fixture.
Pros:- ADA-compliant 17.3-inch seat height for easy use
- Dual flush system reduces water consumption
- Seamless design simplifies cleaning and maintenance
- Includes soft-close seat for quiet operation
Cons:- Heavier than traditional models, complicating installation
- Requires standard 12-inch rough-in for proper fit
Best for: Families or individuals prioritizing comfort and water savings, especially those with mobility concerns or remodeling projects.
Not ideal for: Homeowners with non-standard rough-in sizes or those seeking a lightweight, easy-to-install option without ADA features.
- Seat Height:17.3 inches
- Flush System:Dual Flush 1.1/1.6 GPF
- Rough-In:12 inches
- MaP Score:1000g
- Material:One-piece ceramic
- Seat Type:Soft closing
Our verdict“This toilet offers a balanced mix of comfort, efficiency, and ease of cleaning, making it ideal for remodels and accessible bathrooms.”
Gerber Maxwell Crest Elongated Two-Piece Toilet, Soft-Close Seat, White
Compared to its one-piece counterparts, the Gerber Maxwell Crest offers a more budget-friendly option with a 1.28 gpf flush that effectively clears the bowl without excessive water use. Its two-piece design simplifies installation and repairs, making it suitable for those comfortable with basic plumbing. The glazed trapway enhances waste flow and reduces clog risk, which can be a concern with less efficient models. While it lacks the sleek, seamless look of the Elongated One Piece Toilet, it provides reliable performance at a lower price point. Color options are limited, and installation may still require some technical skill, especially for those unfamiliar with toilet setup. This pick makes the most sense for budget-conscious consumers wanting an efficient, durable fixture without unnecessary bells and whistles.
Pros:- Efficient 1.28 gpf flush clears bowl effectively
- Soft-close seat prevents noise and slamming
- Easy to install with tool-free kit
- Glazed trapway reduces clogging
Cons:- Limited color and style options
- May require professional help for proper setup
Best for: Homeowners seeking a reliable, water-efficient toilet on a budget, comfortable with basic installation.
Not ideal for: Luxury remodels or users preferring a seamless, modern aesthetic with minimal maintenance complexity.
- Type:Two-piece toilet
- Color:White
- Flush Rate:1.28 gpf
- Seat:Elongated, soft-close
- Installation:Tool-free install kit with wax ring
- Trapway:Glazed trapway
Our verdict“This toilet balances affordability with water efficiency, making it a practical choice for everyday use and budget-conscious remodels.”
HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close Seat, 12″ Rough-In, White
The HOROW HR-ST076WD excels in small bathrooms thanks to its compact, fully skirted trapway and space-efficient profile. Its dual flush technology, with options of 1.1 and 1.6 GPF, offers significant water savings—up to 16,500 gallons annually—compared to older, single-flush models. The self-cleaning materials and fully skirted trapway facilitate easy cleaning and reduce clogs, especially compared to open-trap designs. However, its compact size means it may be less comfortable for larger users or those who prefer a more traditional, spacious toilet. Installation tends to require professional help, which adds to total cost. This model is best suited for small apartments or remodeling projects where space and water efficiency are priorities, though it might feel cramped for larger users.
Pros:- Space-saving, compact design ideal for small bathrooms
- Dual flush saves water with 1.1/1.6 GPF options
- Fully skirted trapway simplifies cleaning
- Quiet, powerful siphon flush prevents clogs
Cons:- Requires professional installation due to compact design
- Design may feel too cramped for larger users
Best for: Small-space dwellers or apartment residents needing efficient, space-saving fixtures.
Not ideal for: Larger households or those seeking a more spacious, traditional comfort height toilet.
- Flush Rate:1.1/1.6 GPF
- Rough-In Size:12 inches
- Height:28 inches
- Width:14 inches
- Material:Self-cleaning, ceramic
- Warranty:1-year limited, lifetime after-sales
Our verdict“This toilet offers excellent space efficiency and water savings, making it a smart choice for small homes or apartments.”
Elongated One Piece Toilet with 17″ Comfort Chair Height, Dual Flush 1.1/1.6 GPF, 12″ Rough-in, White
This one-piece toilet emphasizes user comfort with a 17-inch chair height, making it accessible for many users. Its dual flush system balances water efficiency with effective flushing, comparable to the high-efficiency performance of the Gerber Maxwell Crest but with a more modern, seamless design. The soft-close and quick-release features add convenience, especially for busy households. Installation may be straightforward for those familiar with standard plumbing, but some may find the 12-inch rough-in limit restrictive, similar to the Elongated One Piece Toilet with 17.3″ height. Its design is less suited for larger bathrooms where space is less constrained. Overall, it suits users prioritizing comfort, aesthetic appeal, and moderate ease of installation in a standard setup.
Pros:- Comfortable 17-inch chair height for easy use
- Dual-flush system conserves water effectively
- Seamless, easy-to-clean design
- Soft-close and quick-release seat for convenience
Cons:- Installation may require plumbing knowledge
- Limited to 12-inch rough-in setups
Best for: Homeowners wanting a comfortable, easy-to-clean toilet with a modern look for standard bathrooms.
Not ideal for: Large households with irregular plumbing or those requiring higher flexibility in rough-in dimensions.
- Type:One Piece Toilet
- Seat Height:17 inches
- Depth:27.17 inches
- Width:14.37 inches
- Flush Options:1.1/1.6 GPF
- Rough-in:12 inches
Our verdict“This toilet combines comfort and style with reliable water savings, ideal for users seeking an easy upgrade in standard bathrooms.”
One Piece Elongated Toilet with 17.5″ ADA Height Comfort Seat, Dual Flush, WaterSense, White
Designed with accessibility in mind, this one-piece toilet features a 17.5-inch ADA-compliant height, making it easier for seniors and those with mobility issues to sit and stand. Its dual flush system, with options of 1.0 and 1.28 GPF, meets EPA WaterSense standards, providing significant water savings without sacrificing flushing power. The fully skirted, sleek design simplifies cleaning, and the quiet, soft-close seat enhances user comfort. Compared to the Elongated One Piece Toilet with 17.3″ height, this model offers a slightly higher seat ideal for users requiring more assistance. Installation is straightforward for those familiar with plumbing, but it’s limited to a standard 12-inch rough-in. This toilet is best for accessibility-focused bathrooms where long-term efficiency and comfort are priorities.
Pros:- 17.5-inch ADA height for easier sitting and standing
- WaterSense certified dual flush conserves water
- Sleek, skirted design for easy cleaning
- Quiet, soft-close, quick-release seat
Cons:- Requires some plumbing knowledge for installation
- Limited to 12-inch rough-in
Best for: Seniors, people with mobility issues, or households prioritizing accessible, water-efficient fixtures.
Not ideal for: Standard households without accessibility needs or those with non-standard rough-in sizes.
- Height:17.5 inches
- Depth:25.39 inches
- Width:14.56 inches
- Height (overall):26.57 inches
- Rough-in:12 inches
- Flush Rate:1.0/1.28 GPF
Our verdict“This ADA height toilet offers reliable water savings and accessibility, making it ideal for inclusive bathroom upgrades.”
American Standard H2Option Dual Flush Elongated Toilet, Chair Height, White
This model stands out for balancing high performance with water savings, thanks to its dual flush options of 0.92/1.28 GPF, which surpass many standard toilets. The EverClean surface simplifies cleaning, making maintenance easier than some competing models like the Sonderzone. Its high MaP score of 1,000 grams indicates reliable waste removal, but the higher price point and potential installation complexity suggest it’s best for those willing to invest in a premium fixture. Compared to less expensive options, the American Standard offers better longevity and cleaning ease, though it might require professional installation.
Pros:- Water-saving dual flush options
- Easy to clean with EverClean surface
- Includes soft-close seat and hardware
- High MaP score for reliable waste removal
Cons:- Higher price than standard toilets
- Requires professional installation for best results
Best for: Families seeking an efficient, high-performance toilet with minimal cleaning hassle
Not ideal for: Budget-conscious buyers or DIYers who prefer simple, low-cost installations
- Flush Options:0.92/1.28 GPF
- Height:Chair height
- Surface:EverClean
- Includes:SoftClose seat, wax ring, chrome push-button actuator
- Certification:WaterSense
- MaP Score:1,000 grams
Our verdict“This toilet makes the most sense for those prioritizing performance, efficiency, and ease of maintenance in a high-end fixture.”
HOROW T0338W One Piece Toilet with ADA Chair Height, Dual Flush, 12″ Rough-In, White
This toilet excels for small bathrooms or spaces where size matters, with its compact one-piece design and 17.3-inch ADA height that enhances accessibility. Its dual flush (1.1/1.6 GPF) ensures water efficiency comparable to the Sonderzone, but its specific rough-in requirement of 12 inches makes installation trickier for some. Compared to the American Standard H2Option, it offers a more space-efficient form, although it lacks the same high MaP score. Its seamless design simplifies cleaning, but the limited color options and complex installation process make it less ideal for DIYers.
Pros:- Compact, space-saving design
- ADA chair height for accessibility
- Dual flush for water efficiency
- Seamless one-piece construction for easy cleaning
Cons:- Requires specific 12″ or 10″ rough-in
- Installation may be complex for beginners
- Limited color options
Best for: Small bathroom setups needing accessible, space-efficient solutions
Not ideal for: Homeowners with non-standard rough-in sizes or who want easy DIY installation
- Dimensions:26.6″D x 15″W x 26″H
- Seat Height:17.3″
- Flush Options:1.1/1.6 GPF
- Trapway:2″ fully glazed siphon
- Rough-In:12″
- Color:White
Our verdict“Ideal for small, accessible bathrooms where space and comfort are priorities, but installation complexity is a consideration.”
One Piece Sleek Modern Toilet, 17″ ADA Comfort Chair Height, Dual Flush 0.9/1.28 GPF, Fully Skirted Round Design, Gold Button
This toilet combines a modern, sleek appearance with high water efficiency, thanks to its dual-flush system of 0.9/1.28 GPF. The fully skirted design simplifies cleaning and offers a minimalist aesthetic, making it suitable for contemporary settings. Its 17-inch ADA height enhances comfort, but its professional installation requirement and the need for compatible plumbing may deter DIY enthusiasts. Compared with the Sonderzone, it offers a more stylish look but at a potentially higher cost. Its space-saving form is ideal for commercial or upscale residential bathrooms, though compatibility with existing plumbing should be confirmed.
Pros:- Sleek, modern skirted design
- Dual flush reduces water use
- Comfortable ADA height
- Easy-to-clean surface
Cons:- Requires professional installation
- Water supply and flange parts not included
- Higher price point
Best for: Design-conscious homeowners or commercial spaces seeking a modern, water-efficient toilet
Not ideal for: Budget buyers or those seeking straightforward DIY installations
- Rough-In:12 inches
- Seat Height:17 inches
- Flush Options:0.9/1.28 GPF
- Dimensions:25.5″D x 14.7″W x 27″H
- Material:Ceramic
- Water Outlet:Side outlet
Our verdict“Perfect for those prioritizing style and efficiency in a compact, contemporary toilet setup, provided they can manage installation.”
TOTO Drake Two-Piece Elongated 1.6 GPF Universal Height Toilet with CEFIONTECT, Cotton White
The TOTO Drake is favored for its powerful Tornado flush system, providing effective waste removal comparable to higher-end units. Its universal height enhances comfort for most users, including those with ADA needs, although it doesn’t quite reach the extra height of some specialty models. While the 1.6 GPF is slightly less efficient than dual-flush models, it still offers a significant water saving over older toilets. Compared to models like the American Standard H2Option, it emphasizes flushing power over dual-flush versatility. The CEFIONTECT glaze keeps the bowl cleaner longer, but it requires additional purchase of seat and bidet options, which can add to the total cost.
Pros:- Powerful Tornado flush system
- Universal height for comfort
- Effective CEFIONTECT glaze
- Modern, elongated bowl design
Cons:- Requires separate purchase of seat and bidet
- Additional parts needed for installation
- Slightly higher water use than dual-flush models
Best for: Users seeking reliable, powerful flushing with a classic elongated bowl design
Not ideal for: Those strictly wanting dual-flush water savings or budget-conscious buyers
- Flow Rate:1.6 GPF
- Trap Seal:2-1/8″
- Minimum Water Pressure:8 psi
- Height:Universal Height
- Bowl Shape:Elongated
- Rough-in Size:12 inches
Our verdict“A strong choice for those prioritizing flushing power and comfort, willing to handle additional setup costs.”
Sonderzone Elongated One Piece Toilet with Comfort Height, Soft Close Seat, Dual Flush, 12″ Rough-In, White
This model offers a compelling balance of comfort, water savings, and style, with a 17.3-inch ADA height that makes sitting and standing easier for many users. Its dual-flush system (1.1/1.6 GPF) is comparable to higher-priced models like the American Standard H2Option, but at a more affordable price point. The soft-close seat enhances user experience, although it requires a standard 12-inch rough-in, limiting flexibility for some installations. Compared to the HOROW T0338W, it offers a more straightforward, budget-friendly package but with similar water-saving features. Its sleek ceramic design ensures easy cleaning, making it an excellent choice for modern bathrooms.
Pros:- Affordable price point
- Comfortable ADA height
- Dual flush for water savings
- Sleek, easy-to-clean ceramic design
Cons:- Requires standard 12″ rough-in
- Elongated seat may not fit smaller bathrooms
- Potentially higher price than basic models
Best for: Budget-conscious households or small spaces needing reliable, water-efficient toilets
Not ideal for: Homes with non-standard rough-in sizes or those seeking ultra-high flushing power
- Height:17.3 inches
- Flush Type:Dual flush 1.1/1.6 GPF
- Rough-In:12 inches
- Material:Ceramic
- Color:White
- MaP Rating:1000g
Our verdict“A smart choice for those wanting a stylish, water-efficient toilet without sacrificing comfort or budget.”

How We Picked
The products in this roundup were evaluated based on performance, water efficiency, ease of installation, build quality, and user comfort. We prioritized models that offer dual-flush capabilities, as they provide significant water savings while maintaining reliable flushing power. Ease of maintenance and design aesthetics also played a role, especially for one-piece models that are easier to clean. Our ranking favors options that strike a balance between cost and features, ensuring that both budget-conscious and premium buyers find suitable choices. Ultimately, the selected toilets represent a range of styles and price points, with a focus on delivering high efficiency without sacrificing performance.Factors to Consider When Choosing High Efficiency Toilet
When selecting a high efficiency toilet, understanding the key factors that influence performance and value is essential. Consider water usage, comfort, design, and installation requirements to make an informed choice. Recognizing common pitfalls can save money and improve satisfaction with your purchase.Water Efficiency and Flushing Power
Look for toilets with dual-flush systems, typically offering 1.1 or 1.6 GPF (gallons per flush). These provide options for liquid and solid waste, conserving water without compromising performance. However, some ultra-low-volume models may struggle with more solid waste, so consider the flush power in relation to your household needs. Balance water savings with the reliability of the flush to avoid repeated flushing or clogs.
Design and Comfort
Elongated bowls and comfort-height seating improve user experience, especially for seniors or those with mobility challenges. One-piece toilets tend to be more modern and easier to clean, but they often come at a higher price. Two-piece models typically cost less but may have more seams that require maintenance. Choose a design that matches your aesthetic preferences and comfort requirements, keeping in mind the space available in your bathroom.
Installation and Compatibility
Check the rough-in size, usually 12 inches, to ensure compatibility with your bathroom plumbing. Some models feature quick-attach systems or flexible fittings that simplify installation. If you’re replacing an existing toilet, matching the rough-in and bolt pattern can prevent surprises. Consider professional installation if your bathroom setup is complex or if you want to ensure optimal performance and sealing.
Durability and Maintenance
Materials like vitreous china are common and durable, but look for features like glazed trapways or CEFIONTECT coatings that help prevent buildup and stains. A soft-close seat adds convenience and reduces noise, but it may need replacement over time. Regular cleaning with mild products extends the lifespan of your toilet, so design choices that facilitate easy cleaning can save money and effort long-term.
Price and Value
While high-end models offer advanced features and sleek designs, affordable options can still deliver excellent water efficiency and performance. Consider your budget in relation to the features most important to you, such as comfort or aesthetics. Investing a little more upfront can pay off through lower water bills and reduced maintenance costs over time. Beware of extremely cheap models that may sacrifice durability or flushing power.
Frequently Asked Questions
Will a high efficiency toilet handle solid waste as well as a traditional toilet?
Most high efficiency toilets are designed to provide reliable flushing for solid waste, especially those with dual-flush systems and sufficient flush volume like 1.6 GPF. However, ultra-low volume models at 1.1 GPF may occasionally struggle with larger or more solid waste, leading to partial clogs or the need for multiple flushes. It’s important to match your household’s typical waste volume with the toilet’s flushing capacity to ensure satisfaction and avoid repeated flushing or blockages.
Are high efficiency toilets suitable for large households?
Yes, but careful selection is key. Toilets with higher flush volumes, such as 1.6 GPF models, generally handle waste more effectively for multiple users. Dual-flush models offer flexibility, allowing users to choose a lower volume for liquid waste and a higher volume for solids. For very large households or homes with heavy usage, choosing a model with a powerful flush and quick refill times helps prevent delays and backups.
How much can I really save on water bills with a high efficiency toilet?
Switching to a high efficiency toilet can reduce water usage by up to 20-60% compared to older models, depending on your previous toilet’s efficiency. For many households, this translates to savings of several hundred dollars annually on water bills. The actual savings depend on household size, local water rates, and usage habits. Over time, these savings can offset the cost of a more advanced toilet, especially if you select a model with proven water-saving features.
What maintenance considerations should I be aware of for high efficiency toilets?
High efficiency toilets generally require minimal maintenance, but paying attention to the flushing mechanism and trapway condition is important. Regular cleaning with non-abrasive products prevents buildup and staining, while inspecting the flapper and fill valve periodically can prevent leaks. Choosing models with glazed trapways or special coatings can make cleaning easier and extend the lifespan of the toilet, reducing long-term maintenance costs.
Is it worth paying extra for a modern, sleek design?
While a modern, streamlined design can enhance your bathroom’s aesthetic, it often comes at a higher price. If your priority is style, investing in a well-designed model with efficient flushing features can improve both appearance and performance. However, if budget constraints are a concern, many practical high efficiency toilets offer excellent performance without the latest design trends. Balancing aesthetic value with durability and function is key to making the right choice.
Conclusion
For buyers prioritizing overall performance and comfort, the Elongated One Piece Toilet with 17.3″ ADA Comfort Height offers a reliable, user-friendly experience. Those seeking the best value should consider models like the Gerber Maxwell Crest, which balances efficiency and affordability. If you’re after a luxurious, modern look, the One Piece Sleek Modern Toilet provides a stylish solution without sacrificing efficiency. Beginners or those replacing an older model should focus on straightforward, easy-to-install options like the HOROW T0338W. For households with specific needs, such as accessibility or large family use, choosing a model with ADA compliance or higher flush capacity ensures long-term satisfaction and functionality.
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