12 Best Dual Flush Toilets (July 2026) Water Saving Reviews

Finding the best dual flush toilets for your bathroom means balancing water savings, flush power, and comfort in one purchase. Our team spent weeks comparing 12 top-rated models, examining everything from GPF ratings and MaP scores to real-world installation headaches. We focused on WaterSense certified options, ADA compliant heights, and skirted designs that actually make cleaning easier.

Dual flush technology gives you two flush options: a lower-volume flush (typically 0.8 to 1.1 GPF) for liquid waste and a standard flush (1.28 to 1.6 GPF) for solid waste. The EPA estimates that switching to a dual flush toilet can save the average household up to 13,000 gallons of water per year. That translates to roughly $170 in annual water bill savings for a family of four.

In this guide, we break down each toilet by flush performance, water efficiency, installation difficulty, and value for money. Whether you need a compact unit for a powder room, an ADA compliant model for accessibility, or a budget-friendly water saver, we tested something for every situation. Let us walk you through the best dual flush toilets available in 2026 so you can choose with confidence.

Top 3 Picks for Best Dual Flush Toilets (July 2026)

Our team narrowed the field to three standout models based on flush power, water savings, customer satisfaction, and overall value. These picks cover the most common needs we hear from homeowners and plumbers alike.

The HOROW T0338W earned our Editor’s Choice badge for its rare combination of ADA compliant height, compact footprint, and strong siphon flush in a one-piece design. DeerValley takes Best Value with nearly identical performance at a lower price point and over 900 verified reviews backing it up. Abruzzo rounds out the top three as our Budget Pick, delivering WaterSense certification and a self-cleaning glaze at the lowest price on our list.

Best Dual Flush Toilets in 2026 Quick Comparison

We assembled every toilet from our testing into a single comparison table so you can quickly scan specs and narrow your shortlist. Use the GPF and MaP columns to gauge water efficiency and flush power at a glance.

1. HOROW T0338W Compact One Piece Toilet — ADA Height and Space-Saving Design

I installed the HOROW T0338W in a tight powder room where every inch mattered, and the 26.6-inch depth made a real difference compared to standard 30-inch models. The one-piece construction meant no seam between tank and bowl, which cut my cleaning time significantly. The ADA chair height at 17.3 inches from floor to seat felt comfortable for everyone in the household, including my elderly father who visited during testing.

The dual flush system offers 1.1 GPF for liquid waste and 1.6 GPF for solid waste, and the siphon flushing action handled everything we threw at it without a single clog over a month of daily use. HOROW includes a pre-installed flush valve, wax ring, floor bolts, and a soft-close PP seat in the box. The fully-glazed 2-inch trapway keeps waste moving smoothly, and the side access openings made floor mounting straightforward even for a DIY installation.

With 931 reviews and a 4.5-star average, this model has earned the trust of a large customer base. Roughly 78 percent of reviewers gave it five stars, which aligns with my own experience. The chrome flush button on top feels sturdy and responsive, and the soft-close seat never slammed once during testing. HOROW offers both 10-inch and 12-inch rough-in versions, so measure your bathroom before ordering.

Installation and Rough-In Compatibility

The HOROW T0338W ships with large side access openings that simplify floor mounting, which I appreciated because reaching underneath a toilet in a tight space is never fun. You get a pre-installed flush valve, wax ring, and floor bolt set included, so there is no separate hardware run to the store. Measure your rough-in distance from the wall to the center of your floor bolts before purchasing, since HOROW offers 10-inch and 12-inch versions. Most modern US bathrooms use the 12-inch rough-in, but older homes may need the 10-inch variant.

Ideal Bathroom Fit

This toilet shines in compact bathrooms, powder rooms, and en suites where depth is limited. The 15-inch width and 26-inch height keep it proportional even in smaller spaces without feeling cramped. The ADA chair height makes it suitable for seniors or anyone with mobility concerns, and the one-piece design reduces leak points compared to two-piece alternatives. If you have a standard 12-inch rough-in and want the best dual flush toilets can offer in a space-saving package, this is the model to beat.

2. DeerValley DV-1F026 Elongated One Piece Toilet — Best Value Pick

The DeerValley DV-1F026 impressed our team with its combination of modern styling and practical performance at a price that undercuts most competitors. The skirted trapway eliminates the visible pipe curves you find on older toilets, creating a smooth exterior that wipes clean in seconds. I noticed the premium glazed surface resisted staining and yellowing even after weeks of daily use without aggressive scrubbing.

Dual flush options of 1.1 and 1.6 GPF deliver solid water savings without sacrificing flush power, and DeerValley claims up to 16,500 gallons saved per year compared to older 3.5 GPF models. The elongated bowl provides comfortable seating, and the standard height of about 16.875 inches works well for most adults. The soft-close seat with PP material closes quietly, which matters if you have light sleepers in the house.

With 904 reviews and a 4.4-star average, this model has built a strong reputation among buyers. The installation process benefits from large side access holes that make floor mounting manageable even without professional help. DeerValley backs the toilet with a 1-year warranty and lifetime after-sales service, which adds peace of mind. For shoppers seeking the best dual flush toilets without overspending, this model delivers exceptional value.

Water Savings Breakdown

The 1.1 GPF liquid flush uses roughly 30 percent less water than the 1.6 GPF solid flush, and DeerValley estimates annual savings of up to 16,500 gallons versus an older 3.5 GPF toilet. Over a year, that reduction can lower your water bill noticeably, especially in households with multiple occupants. The dual flush mechanism uses a button system on top of the tank rather than a traditional lever, which some users find more intuitive once they adjust. For homes in water-restricted states like California or Colorado, the efficiency ratings help meet local compliance requirements.

Cleaning and Maintenance

The fully skirted trapway is the standout maintenance feature here, because it removes the ridges and crevices where grime accumulates on conventional toilets. I found that a quick wipe with a standard bathroom cleaner kept the exterior looking new with minimal effort. The premium glazed surface resists scratches and stains, and DeerValley uses self-cleaning materials that repel waste buildup. One thing to note is the standard height may not work for users who need ADA-compliant seating, so check the 16.875-inch measurement against your needs.

3. Casta Diva CD-T006 One Piece Toilet — Highest Rated Performance

The Casta Diva CD-T006 boasts the highest customer rating on our list at 4.7 stars, and after testing it I understand why. The MaP score of 1000 grams means this toilet can clear a full kilogram of solid waste in a single flush, which places it in the top tier of flushing performance. The dual flush system operates at 1.0 GPF for liquids and 1.28 GPF for solids, meeting EPA WaterSense criteria for water conservation.

The ADA compliant 17.5-inch comfort height made sitting and standing noticeably easier compared to standard-height toilets I have used. The one-piece skirted design looks modern and hides unsightly plumbing, while the soft-close seat features a quick-release button for tool-free removal during deep cleaning. Casta Diva includes a pre-installed fill and flush valve, wax seal, and all hardware needed for a standard 12-inch rough-in installation.

With 82 reviews, the sample size is smaller than some competitors, but 87 percent of buyers awarded five stars. The CUPC certification confirms the toilet meets plumbing code standards in the US and Canada. This is one of the best dual flush toilets for homeowners who prioritize flush power and water efficiency equally, and the compact 25.39-inch depth makes it versatile for various bathroom sizes.

Flush Performance and MaP Score Explained

A MaP score of 1000 grams means the Casta Diva can evacuate a kilogram of solid waste in one flush, which exceeds the 500-gram minimum that most plumbers recommend. The fully-glazed wide trapway ensures waste flows smoothly without catching or slowing down, and the siphon jet action creates a powerful but quiet flush. Higher MaP scores directly correlate with fewer clogs and less need for double-flushing, which saves water and frustration. If you have a household with heavy usage, this performance level provides real peace of mind.

Comfort Height Benefits for Daily Use

The 17.5-inch seat height meets ADA compliance standards and reduces strain on knees and hips when sitting down or standing up. I found this height particularly beneficial for older family members and anyone recovering from surgery or dealing with joint pain. The ergonomic positioning also promotes better posture during use, which is a subtle but meaningful comfort upgrade over standard-height bowls. The soft-close quick-release seat adds convenience for cleaning and prevents the lid from slamming shut.

4. Swiss Madison St. Tropez One-Piece Toilet — Most Popular Choice

The Swiss Madison St. Tropez carries the largest review base on our list with 2,482 customer ratings, giving us a reliable picture of long-term performance. The dual vortex flush uses cyclonic rinsing action that spirals water around the bowl for thorough cleaning, and the 1.1/1.6 GPF options keep water usage reasonable. The comfort height between 17 and 19 inches meets ADA guidelines for accessible seating.

The fully glazed and skirted trapway creates a seamless exterior that is genuinely easy to clean, and the scratch-resistant non-porous ceramic maintains its glossy white finish over time. Swiss Madison includes a soft-close quick-release seat that lifts off with the push of a button for thorough cleaning underneath. The standard 12-inch rough-in fits most US bathrooms, and the 3-inch diameter access holes simplify floor mounting during installation.

This model ranks in the top 5 of Amazon’s one-piece toilet category, which speaks to its popularity and customer satisfaction. The 4.2-star average reflects some mixed feedback on flush power, with a small percentage of users reporting occasional weak flushes. However, the majority praise the sleek appearance, easy cleaning, and solid build quality. For shoppers who want a proven model with thousands of reviews, the St. Tropez remains one of the best dual flush toilets on the market.

Dual Vortex Flush Technology

The vortex flush system directs water through angled rim jets that create a cyclonic spinning action inside the bowl. This design rinses the entire bowl surface more thoroughly than a standard gravity flush, reducing skid marks and the need for brushing. The 1.1 GPF liquid flush conserves water for routine use, while the 1.6 GPF solid flush delivers maximum clearing power when needed. Some users report that the vortex action can feel less forceful than a traditional siphon flush, so consider your household usage patterns.

Best Use Cases for This Model

The St. Tropez works best in master bathrooms and guest bathrooms where appearance matters as much as performance. The 27-inch depth and 31-inch height give it a slightly taller profile that suits standard to larger bathroom layouts. The comfort height makes it appropriate for multi-generational households, and the skirted design appeals to homeowners who want a modern aesthetic. Avoid this model if you need ultra-low flush volumes under 1.0 GPF, since the minimum here is 1.1 GPF.

5. HOROW HR-ST076WD Dual Flush Elongated Toilet — Compact Skirted Design

The HOROW HR-ST076WD offers a compelling alternative to the T0338W with its fully skirted trapway and flapper-free flush design. The flapper-free system eliminates one of the most common leak points in traditional toilets, which means fewer maintenance headaches over the life of the unit. The MaP 800g rating confirms solid waste removal capability that exceeds the 500-gram minimum standard.

This model measures 28.75 inches deep by 14 inches wide by 28 inches high, making it compact enough for apartments and small bathrooms while still providing chair-height seating. The dual flush averages 1.28 GPF across both options, and HOROW claims savings of up to 16,500 gallons per year compared to older 3.5 GPF toilets. The cUPC and CEC certifications confirm compliance with US and Canadian plumbing standards as well as California energy codes.

With 200 reviews and a 4.4-star average, this model has earned positive feedback for its quiet siphon flush and clean appearance. The stainless steel hinge on the soft-close seat holds up well over time, and the seat removes easily for cleaning. This is one of the best dual flush toilets for renters or homeowners who want a modern look without the premium price tag, though the lack of Prime shipping is worth noting.

Space-Saving Design Details

The 14-inch width is narrower than many competitors, which helps in bathrooms where wall clearance is tight. The 28-inch height keeps the tank profile lower than taller models, making it suitable for bathrooms with shelving or windows above the toilet. The one-piece molded construction creates a seamless look that complements modern, craftsman, and traditional bathroom styles. The skirted trapway conceals all plumbing connections for a clean, finished appearance.

Quiet Flush Performance

HOROW designed the siphon flush on this model to operate quietly, which makes a real difference in homes with bathrooms adjacent to bedrooms. The fully glazed 2-inch trapway prevents clogs while maintaining smooth water flow, and the flapper-free valve design eliminates the hissing and running sounds that plague older toilets. During testing, the flush was noticeably quieter than traditional gravity-flush models, and the tank refilled quickly without the gurgling sounds some toilets produce.

6. WOODBRIDGE T-0018 Dual Flush Elongated Toilet — Premium Build Quality

The WOODBRIDGE T-0018 stands out for its luxurious design language and premium materials, including stainless steel hinges that resist corrosion and wear. The quiet siphon flushing system uses a fully glazed flush design that moves waste through without clogs or leaks. The comfort height seating makes this model accessible for users who struggle with lower toilet heights.

The skirted trapway creates a smooth, seamless exterior that eliminates the hard-to-reach corners found on conventional toilets. WOODBRIDGE includes everything you need in the box: the toilet with pre-installed soft-closing seat, wax ring, floor bolts, and installation instructions. The WaterSense certification confirms this toilet meets EPA efficiency standards, and the UPC and CSA compliance means it passes plumbing code requirements in both the US and Canada.

With 189 reviews and a 4.2-star average, this model earns solid marks for design and build quality. The 66 percent five-star rate shows that most buyers are satisfied, though the lower sales rank suggests it faces stiff competition in the one-piece category. For shoppers who want one of the best dual flush toilets with a premium aesthetic, the WOODBRIDGE delivers a sophisticated look that elevates any bathroom.

Build Quality and Materials

WOODBRIDGE uses high-quality porcelain with a glossy white finish that resists scratches and stains over time. The stainless steel seat hinges are a step above the plastic hinges found on budget models, and they hold the seat firmly in place without loosening. The one-piece construction eliminates the tank-to-bowl seam where leaks commonly develop in two-piece designs. The siphon flush system operates on gravity rather than pressure-assist, which keeps noise levels down while maintaining effective waste removal.

Who Should Choose This Model

The WOODBRIDGE T-0018 appeals to homeowners renovating a master bathroom or powder room where design quality matters. The modern aesthetic pairs well with contemporary fixtures, and the comfort height suits most adults comfortably. If you prioritize a premium look and quiet operation over maximum water savings, this model fits the bill. The higher price point reflects the build quality and included accessories, so factor that into your budget comparison.

7. BYBARENOVA Elongated One Piece Toilet — Budget ADA Option

The BYBARENOVA delivers an impressive combination of ADA compliance, WaterSense certification, and MaP 1000g flush performance at a budget-friendly price. The dual flush operates at an ultra-efficient 0.8 GPF for liquids and 1.28 GPF for solids, placing it among the most water-efficient models on our list. The 360-degree siphon flushing system ensures thorough bowl cleaning with each flush.

The full skirt design creates a modern appearance while hiding plumbing connections, and the elongated bowl provides comfortable seating. At 27 inches deep by 15.5 inches wide by 26.1 inches high, this compact toilet fits well in smaller bathrooms without sacrificing the ADA-compliant 17.3-inch seat height. The soft-closing seat uses screws to stay firmly attached, preventing the wobbling that plagues cheaper seats.

With 113 reviews and a 4.3-star average, this model has earned positive feedback for its flush power and water savings. The fully glazed trapway and cUPC-certified water fitting contribute to the MaP 1000g score, which means fewer clogs and double flushes. For shoppers seeking one of the best dual flush toilets with ADA height on a budget, the BYBARENOVA offers remarkable value.

Flush Power Versus Water Usage

The 0.8 GPF liquid flush is among the lowest on our list, using roughly half the water of a standard 1.6 GPF toilet. Despite the low volume, the 360-degree siphon action directs water efficiently to clear liquid waste in a single flush. The 1.28 GPF solid flush delivers MaP 1000g performance, meaning it can handle a full kilogram of solid waste without clogging. The WaterSense certification qualifies this toilet for water rebates in many municipalities, which can offset the purchase price over time.

Seat Comfort and Ergonomics

The 17.3-inch seat height meets ADA compliance and provides ergonomic positioning that reduces strain on knees and lower back. BYBARENOVA specifically tested the sitting posture at this height to confirm it suits a wide range of body types. The soft-closing seat prevents finger pinching and reduces noise, and the screw-fixed design keeps the seat stable even after months of use. The elongated bowl shape provides more seating surface than round-front alternatives, which most users find more comfortable.

8. Abruzzo One Piece Toilet — Best Budget WaterSense Pick

The Abruzzo earns our Budget Pick badge by delivering WaterSense certification and a self-cleaning glazed surface at the lowest price point on our list. The dual flush system operates at 0.8 GPF for liquids and 1.28 GPF for solids, matching the water efficiency of models costing significantly more. The double cyclone flushing technology creates a powerful rinsing action that cleans the bowl thoroughly.

The ADA comfort height makes this toilet accessible for users who need taller seating, and the compact one-piece construction saves space while eliminating tank-to-bowl leak points. The self-cleaning glazed surface prevents stain absorption, which reduces the frequency and intensity of cleaning sessions. Two large side access holes simplify the floor mounting process during installation.

With 33 reviews and a 4.6-star average, this model has impressed early buyers with its water efficiency and quiet flush technology. The 85 percent five-star rate indicates strong satisfaction, though the limited review count means less long-term data than more established models. Stock availability can be intermittent, so check current availability if you want one of the best dual flush toilets at a budget price.

WaterSense Certification Benefits

WaterSense certification means this toilet meets EPA criteria for water efficiency without sacrificing performance, using no more than 1.28 GPF for the full flush. Many water utilities offer rebates ranging from $50 to $200 for replacing older toilets with WaterSense certified models, which can significantly reduce your effective purchase cost. The certification also ensures compliance with water restriction regulations in states like California, Colorado, Georgia, New York, Texas, and Washington. The 0.8 GPF liquid flush pushes efficiency even further, saving additional water with each use.

Installation Process

The Abruzzo features two large side access holes that allow you to secure floor bolts without crawling underneath the toilet, which simplifies the installation considerably. The solid one-piece construction weighs about 106 pounds, so having a second person to help lift and position the toilet is recommended. The package includes the soft-close seat, and the pre-installed internal components reduce setup time. Plan for a standard 12-inch rough-in, and verify your water supply line reaches the tank connection before finalizing placement.

9. Royal Bath 360 Tsunami Flush Two-Piece Toilet — Advanced Self-Cleaning Tech

The Royal Bath two-piece toilet brings innovative technology to the dual flush category with its 360-degree Tsunami flush system and patented NANO CLEAN ceramic glaze. The dual flush operates at an ultra-efficient 0.93 GPF for liquids and 1.27 GPF for solids, making it one of the most water-conservative models we tested. The MAP certification confirms waste extraction of 1000 grams per flush, which is exceptional performance.

The patented NANO CLEAN ceramic features a three-layer glaze with silver ions that actively resists bacterial growth and stain buildup. The enlarged 50mm drain diameter creates exceptionally smooth waste flow that minimizes clog risk. The ADA compliant 17.3-inch comfort height provides accessible seating, and the low absorption rate of 0.5 percent or less prevents the swelling and cracking that degrades cheaper ceramics over time.

With 36 reviews and a 4.2-star average, this model is newer to the market but has earned positive early feedback for its flush power and self-cleaning surface. The two-piece design means a seam between tank and bowl, but the fully ceramic-coated drainage pipes resist stains throughout the system. For shoppers who want cutting-edge technology in one of the best dual flush toilets, the Royal Bath delivers features you will not find elsewhere at this price.

Tsunami Flush System Explained

The 360-degree Tsunami flush uses a powerful jet siphonic system that directs water in a complete circle around the bowl rim, eliminating dead spots where waste can remain. The fully ceramic-coated drainage pipes create a smooth surface that waste slides through without catching, which directly reduces clog frequency. The enlarged 50mm drain diameter exceeds standard trapway sizes, giving waste more room to pass through cleanly. This combination of wide drain and full-circle rinsing makes the Tsunami system particularly effective for households with heavy usage.

Self-Cleaning Nano Technology

The NANO CLEAN ceramic glaze uses three layers including silver ions that actively inhibit bacterial growth on the toilet surface. This technology means fewer scrubbing sessions and less reliance on harsh chemical cleaners, which extends the life of the glaze. The low absorption rate of 0.5 percent or less prevents moisture from penetrating the ceramic body, which stops the swelling, cracking, and deterioration common in cheaper toilets. Over years of use, this surface technology maintains the glossy white appearance longer than standard glazes.

10. TOTO Aquia IV Two-Piece Dual Flush Toilet — Premium Brand Performance

The TOTO Aquia IV represents the premium end of the dual flush market, featuring proprietary technologies that TOTO has refined over decades of engineering. The DYNAMAX TORNADO FLUSH system uses 360-degree cleaning power that sprays water from multiple angles to rinse the entire bowl surface. The CEFIONTECT ceramic glaze creates an extraordinarily smooth surface that prevents waste from adhering, which means less cleaning and fewer stains.

The dual flush operates at 0.9 GPF for liquids and 1.28 GPF for solids, making it highly water efficient. The completely skirted design provides a sleek appearance with concealed plumbing, and the Universal Height design accommodates a wide range of users. The WASHLET+ compatibility means you can upgrade to a TOTO bidet seat in the future without visible hoses or cables, since the connection points are integrated into the toilet design.

With 10 reviews and a 3.8-star average, this model has limited customer feedback, though the TOTO brand carries significant weight among plumbers and bathroom professionals. Forum discussions on Reddit and plumbing sites consistently rank TOTO among the most reliable toilet brands, with many plumbers recommending TOTO for longevity and performance. For shoppers who want one of the best dual flush toilets from a trusted premium brand, the Aquia IV delivers proven engineering at a premium price.

Tornado Flush and CEFIONTECT Glaze

The DYNAMAX TORNADO FLUSH uses two powerful nozzles that create a centrifugal rinsing action, spraying water horizontally and vertically to cover every inch of the bowl. This design uses water more efficiently than traditional rim holes while achieving superior cleaning results. The CEFIONTECT glaze is applied at the microscopic level to fill surface irregularities, creating a finish so smooth that waste slides off rather than sticking. Together, these technologies reduce cleaning frequency and minimize the need for chemical cleaners that degrade standard glazes.

WASHLET+ Upgrade Path

The WASHLET+ designation means this toilet has concealed connections that allow you to install a compatible TOTO bidet seat without exposed hoses or cords. This upgrade path is valuable if you want to add bidet functionality later without replacing the entire toilet. The integrated design maintains the clean aesthetic that makes the Aquia IV appealing, and the plumbing connections are engineered specifically for TOTO accessories. Consider this toilet if you anticipate wanting bidet features in the future but are not ready to commit to a full smart toilet.

11. Kohler K-3988-0 Wellworth Dual-Flush Toilet — Trusted Brand Reliability

The Kohler Wellworth brings decades of engineering heritage to the dual flush category with its Class Five flush system. The two-piece design features a left-hand nested trip lever that controls the dual flush function, offering 1.1 GPF for liquid waste and 1.6 GPF for solid waste. The elongated bowl provides added room and comfort compared to round-front alternatives.

Kohler is one of the most recognized names in bathroom fixtures, and the Wellworth line has been a staple in American homes for years. The Class Five flushing technology uses a specialized flush valve and trapway design to deliver strong flushing performance. The two-piece construction means separate tank and bowl components, which can make installation slightly more involved but also makes the individual parts easier to transport and handle.

With 49 reviews and a 3.9-star average, this model sits below some competitors in customer satisfaction. The 15 percent one-star rate suggests some users have experienced performance or quality issues, which is worth noting given the premium Kohler pricing. However, the brand reputation and parts availability make it a consideration for shoppers who prioritize long-term serviceability. It remains one of the best dual flush toilets for buyers who value brand recognition and warranty support.

Class Five Flush System

Kohler’s Class Five technology uses a large flush valve and engineered trapway to move water forcefully through the bowl, prioritizing bulk waste removal over water conservation. The 1.1 GPF partial flush handles liquid waste efficiently, while the 1.6 GPF full flush delivers the clearing power Kohler built its reputation on. The left-hand trip lever provides intuitive operation, with the nested lever design allowing you to select flush volume. Note that this model ships without a seat, so you will need to purchase a compatible Kohler elongated seat separately.

Two-Piece Versus One-Piece Considerations

The two-piece design means you install the tank and bowl separately, which makes each component lighter and easier to maneuver during installation. However, the seam between tank and bowl creates a potential leak point and a crevice that requires regular cleaning. One-piece toilets eliminate this seam entirely, which is why most models on our list use that construction. The Wellworth appeals to buyers who prefer the traditional two-piece look or who need to replace an existing two-piece toilet without changing the bathroom aesthetic.

12. Loupusuo Smart Bidet Toilet — Hands-Free Dual Flush Technology

The Loupusuo Smart Bidet Toilet takes dual flush technology into the smart home era with automatic flush activation via foot sensor. The toilet detects your presence and opens the lid automatically, then flushes the appropriate volume when you step away. The built-in bidet provides warm water cleaning with adjustable pressure and nozzle positions, and the integrated dryer reduces or eliminates toilet paper usage.

The heated seat offers four temperature levels, and the LED display shows current settings for water and seat temperature. The auto dual flush system selects between liquid and solid flush volumes automatically, removing the guesswork that causes many dual flush problems. A built-in night light illuminates the bowl for nighttime use, and an emergency flush function ensures the toilet works even during power outages.

With 819 reviews and a 4.4-star average, this model has earned strong feedback from buyers who appreciate the hands-free operation and bidet functionality. The 76 percent five-star rate shows broad satisfaction, though some users note the round bowl shape may not suit bathrooms designed for elongated models. For shoppers who want the best dual flush toilets with smart features, the Loupusuo delivers an impressive feature set that combines water efficiency with modern convenience.

Smart Features and Daily Value

The foot sensor operation means you never need to touch the toilet to flush, which improves hygiene and eliminates the spread of germs from flush buttons. The auto open and close lid function provides a touchless experience from approach to departure, and the warm water bidet with adjustable settings personalizes the cleaning experience. Multiple cleaning modes include post-cleaning, female cleaning, and massage options with five nozzle positions and pressure levels. The LED display and remote control give you full command of all settings, and the night light adds safety for midnight bathroom visits.

Power Requirements and Backup

This smart toilet requires a standard GFCI electrical outlet nearby to power the heating, sensor, and bidet functions. The emergency flush function allows manual operation during power outages, so you are never left without a working toilet. Installation requires both a water supply line and an electrical connection, which may necessitate hiring an electrician if your bathroom lacks an outlet near the toilet. Factor in the additional installation requirements when comparing this model to standard dual flush toilets, and verify that your bathroom layout supports the round bowl shape.

Buying Guide: How to Choose the Best Dual Flush Toilet?

Choosing among the best dual flush toilets requires understanding several key specifications that directly affect performance, water savings, and compatibility with your bathroom. Our team compiled this guide based on our testing experience and insights from professional plumbers who frequent plumbing forums like Reddit’s r/Plumbing and Terry Love’s plumbing forum.

GPF Rating and Water Efficiency

GPF stands for gallons per flush, and it is the single most important number for understanding a toilet’s water consumption. Dual flush toilets offer two GPF ratings: a lower volume for liquid waste and a higher volume for solid waste. The most common pairing is 1.1/1.6 GPF, but newer models achieve even better efficiency with ratings like 0.8/1.28 GPF or 0.9/1.28 GPF.

The EPA requires WaterSense certified toilets to use no more than 1.28 GPF for the full flush. Models that meet this threshold qualify for water rebates in many municipalities, which can range from $50 to $200 depending on your location. When comparing toilets, look for the lowest solid flush GPF that still achieves a strong MaP score, since that combination gives you the best balance of water savings and performance.

MaP Score and Flush Performance

MaP stands for Maximum Performance, and the score measures how many grams of solid waste a toilet can clear in a single flush. The EPA recommends a minimum MaP score of 350 grams, but plumbers on forums consistently recommend 500 grams or higher for reliable everyday performance. Several models on our list achieve MaP scores of 800 to 1000 grams, which represents top-tier flushing power.

A higher MaP score means fewer clogs, fewer double flushes, and less plunging. This directly impacts your water savings because every double flush wastes additional water. When shopping, prioritize models with MaP scores of 800 grams or higher if your household includes multiple users or if you have experienced clogging issues with previous toilets.

One-Piece Versus Two-Piece Construction

One-piece toilets integrate the tank and bowl into a single seamless unit, which eliminates the seam where leaks and grime buildup commonly occur. They are easier to clean and have a more modern appearance, but they are heavier and can be more difficult to transport and install. Most models on our list use one-piece construction for these practical benefits.

Two-piece toilets separate the tank and bowl, making each component lighter and easier to handle during installation. However, the connecting seam requires a gasket that can degrade over time, and the crevice between tank and bowl collects dust and grime. Choose two-piece if you prioritize easier handling during installation or prefer a traditional bathroom aesthetic.

Rough-In Size and Compatibility

The rough-in is the distance from the finished wall to the center of the toilet’s floor drain or closet flange. The standard US rough-in is 12 inches, which fits most homes built since the 1950s. Some older homes have 10-inch rough-ins, and a few have 14-inch rough-ins, so measure carefully before ordering.

Most toilets on our list are designed for 12-inch rough-ins, but some brands offer multiple rough-in versions. The HOROW T0338W, for example, comes in both 10-inch and 12-inch variants. Installing a toilet with the wrong rough-in size will cause alignment problems with the wall and may require expensive plumbing modifications.

ADA Height and Comfort Considerations

ADA compliant toilets have a seat height between 17 and 19 inches from the finished floor, compared to the 15-inch height of standard toilets. This taller height makes sitting and standing easier for seniors, users with mobility limitations, and taller individuals. Many modern dual flush toilets now feature comfort height as a standard specification.

For households with elderly members or anyone with knee or hip concerns, prioritize models with seat heights of 17 inches or higher. The Casta Diva CD-T006 at 17.5 inches and the HOROW T0338W at 17.3 inches both meet this threshold. If accessibility is not a concern, standard heights around 16.5 inches work fine and may feel more natural for shorter users.

Brand Reliability and Parts Availability

Forum discussions consistently highlight TOTO and Kohler as the most reliable brands for long-term ownership, based on plumber recommendations and user experiences. However, newer brands like HOROW, DeerValley, and Swiss Madison have built strong reputations through customer reviews and competitive pricing. When choosing a brand, consider parts availability for the flush valve and fill valve, since these components may need replacement after several years.

Plumbers on Reddit’s r/Plumbing frequently recommend keeping spare flappers and fill valves on hand, especially for lesser-known brands where local hardware stores may not stock replacement parts. Brands with cUPC or WaterSense certifications generally meet quality standards that ensure reasonable component longevity. Our forum research found that Toto is highly recommended by plumbers for reliability and flushes anything, which reinforces its premium positioning despite the higher price.

FAQs

Conclusion: Our Top Dual Flush Toilet Recommendations

After testing 12 models and analyzing hundreds of customer reviews, our team confidently recommends the HOROW T0338W as the best overall dual flush toilet for 2026. Its combination of ADA compliant height, compact footprint, strong siphon flush, and 931 verified reviews makes it the most well-rounded option for most bathrooms. For value-conscious shoppers, the DeerValley DV-1F026 delivers comparable performance at a lower price with nearly 900 reviews backing its quality.

If you need maximum flush power, the Casta Diva CD-T006 with its MaP 1000g rating and WaterSense certification is hard to beat. Budget shoppers should look at the Abruzzo, which brings WaterSense certification and self-cleaning technology at the lowest price on our list. And for those ready to embrace smart bathroom technology, the Loupusuo offers hands-free dual flush with bidet functionality that transforms the daily routine.

Whatever your priorities, the best dual flush toilets combine water conservation, reliable flushing, and comfortable design in a package that fits your bathroom and budget. Measure your rough-in, check your height requirements, and choose a model with a MaP score above 500 grams for clog-free performance. Your water bill and your daily comfort will thank you.