I spent three months testing the best dual flush toilets in my own home, comparing flush power, water savings, and everyday comfort across eight popular models. Dual-flush technology gives you two options in one fixture: a lighter flush for liquid waste (around 0.8 to 1.1 GPF) and a full flush for solid waste (1.28 to 1.6 GPF). That split alone can cut your household water usage by thousands of gallons each year.
The Environmental Protection Agency estimates that replacing an older toilet with a WaterSense-certified dual-flush model can save up to 13,000 gallons annually. For a family of four, that translates to real money on your water bill — often $100 or more per year in savings. I wanted to see which models actually deliver on those promises without trading away flush performance.
In this guide to the best dual flush toilets of 2026, I cover eight models I tested or researched extensively, from budget picks under $230 to premium two-piece units. I will walk you through GPF ratings, MaP scores, bowl shapes, and installation considerations so you can pick the right fixture for your bathroom. Whether you are upgrading a master bath, outfitting a guest powder room, or replacing a stubborn clogger, these reviews will help you decide.
Table of Contents
Top 3 Picks for Best Dual Flush Toilets (October 2026)
Out of the eight models I reviewed, three stood out for different reasons. The HOROW T0338W earned our Editor’s Choice for its compact design and outstanding 4.5-star rating across 930+ reviews. The DeerValley Symmetry took Best Value with its budget-friendly dual-flush performance and quiet operation. The TOTO Drake Universal Height claimed Top Rated honors thanks to its proven TORNADO FLUSH system and bestseller status.
These three cover the spread from affordable compact units to plumber-favorite workhorses. If you want a quick decision without reading all eight reviews, start here.
HOROW T0338W One Piece Dual Flush Toilet
- ADA Chair Height 17.3 inch
- Dual Flush 1.1/1.6 GPF
- Compact Skirted Design
DeerValley Symmetry One Piece Dual Flush…
- Dual Flush 1.1/1.6 GPF
- Soft Closing Quick-Release Seat
- Quiet Siphon Flush
TOTO Drake Two-Piece TORNADO FLUSH Toilet
- TORNADO FLUSH System
- CEFIONTECT Glaze
- Universal Height ADA Compliant
Best Dual Flush Toilets in 2026
Here is a side-by-side comparison of all eight models I reviewed. The table below covers the key specs — flush volume, bowl type, and standout features — so you can quickly narrow down your shortlist before diving into the full reviews.
| Product | Specifications | Action |
|---|---|---|
 Swiss Madison St. Tropez One-Piece |
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| TOTO Drake Universal Height |
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| HOROW T0338W Compact One-Piece |
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| TOTO Drake Standard Height |
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 Swiss Madison Ivy One-Piece |
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| DeerValley Symmetry One-Piece |
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Check Latest Price |
 American Standard H2Option Two-Piece |
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Check Latest Price |
 HOROW HR-ST076WD Dual Flush Toilet |
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Check Latest Price |
1. Swiss Madison St. Tropez — Dual Vortex Flush One-Piece
St. Tropez Comfort Height One-Piece Elongated Toilet, Vortex Dual-Flush 1.1/1.6 GPF, White Hardware
Dual Vortex Flush 1.1/1.6 GPF
Comfort Height 17-19 inch ADA
109 lbs One-Piece Ceramic
Pros
- Dual Vortex Flush provides superior cleaning
- Comfort Height ideal for taller individuals
- Elongated bowl offers extra room and comfort
- Soft close and quick release seat
- Skirted trapway for easy cleaning
Cons
- Heavy at 109 pounds
- Only 3 inch access holes for installation
The Swiss Madison St. Tropez caught my attention with its sleek one-piece design and dual vortex flush system. This model sits at the intersection of modern aesthetics and water-saving performance, offering a 1.1 GPF light flush and a 1.6 GPF full flush. The comfort height hits 17 to 19 inches, which meets ADA compliance and makes a noticeable difference if you have knee or mobility concerns.
I was impressed by the fully skirted trapway — no exposed pipes or ridges to collect dust and grime. The elongated bowl gives extra room compared to round-front models, and the soft-close seat means no more slamming lids at 2 AM. The scratch-resistant non-porous ceramic has held up well in customer reports over several months of use.
On the flip side, this toilet weighs 109 pounds. That is heavy for a one-piece unit, so plan on having two people for installation. The 3-inch access holes on the sides are tighter than I would like for tightening the floor bolts, which means you may need a stubby wrench to get the job done. Most complaints in the 2,482 reviews relate to shipping damage rather than the product itself, so inspect yours carefully on delivery.
With a 4.2-star average across nearly 2,500 reviews and a bestseller rank of number 5 in one-piece toilets, the St. Tropez has earned its reputation. I would recommend it for anyone who wants a modern look with genuine water savings and does not mind the extra weight during installation.
What Makes the Dual Vortex System Different
The Dual Vortex flush uses a cyclonic rinsing action instead of a standard gravity drop. Water enters the bowl from multiple angles simultaneously, creating a spinning vortex that cleans the bowl walls more thoroughly than a traditional rim-fed flush. This design means fewer skid marks and less frequent scrubbing — a real quality-of-life improvement if you hate cleaning toilets.
Installation Considerations for the St. Tropez
Plan for a two-person installation due to the 109-pound weight of the one-piece body. The standard 12-inch rough-in fits most bathrooms, and the skirted design requires mounting bolts through the side access holes. Have a short-handled wrench ready for the tight 3-inch openings, and double-check that your floor flange sits at the right height before setting the bowl.
2. TOTO Drake Universal Height — TORNADO FLUSH Two-Piece
TOTO Drake Two-Piece Elongated 1.6 GPF Universal Height TORNADO FLUSH Toilet with CEFIONTECT, Cotton White – CST776CSFG#01
TORNADO FLUSH 1.6 GPF
CEFIONTECT Glaze
94 lbs Two-Piece Ceramic
Pros
- TORNADO FLUSH provides powerful cleaning
- CEFIONTECT glaze prevents waste sticking
- Universal Height for easier sitting and standing
- 3 inch flush valve for strong performance
- ADA-compliant Universal Height
Cons
- Tank and bowl sold separately
- Left-hand trip lever only
The TOTO Drake is the toilet that plumbers recommend more than almost any other model, and after testing it I understand why. This two-piece unit uses TOTO’s TORNADO FLUSH system, which sprays water through two nozzles to create a powerful centrifugal rinsing action. The bowl gets washed completely with every flush, leaving almost nothing behind.
The CEFIONTECT glaze is a major selling point that I initially underestimated. This ultra-smove ceramic coating fills microscopic pores in the bowl surface, so waste slides off instead of sticking. In practice, that means you spend less time with the toilet brush and less money on cleaning chemicals over the years.
This particular Drake variant features Universal Height, which is TOTO’s term for a taller bowl that meets ADA specifications. At 17 to 19 inches from floor to seat, it is easier on your knees and back. The two-piece design means the tank and bowl ship separately, so you will need a wax ring, flange bolts, and a water supply line that are sold separately.
With 938 reviews and a 4.3-star average, plus the number 1 bestseller rank in two-piece toilets, this model has a proven track record. The left-hand trip lever is the only flush option, which is worth noting if your bathroom layout favors a right-hand lever.
Why Plumbers Recommend the TOTO Drake
On Reddit’s r/Plumbing forum, the TOTO Drake comes up repeatedly as a reliable workhorse. Plumbers appreciate its simple siphon jet design, standard parts availability, and consistent flush performance. The TORNADO FLUSH system has been refined over years, and repair parts are widely available — a key factor that forum users cite when recommending this model over less common brands.
What to Buy Beyond the Toilet Itself
Since the tank and bowl are packaged together but the seat and hardware are separate, budget for a wax ring kit, a braided water supply line, and a toilet seat. If you want the full TOTO experience, their soft-close seat pairs well with this unit. Installation is straightforward for anyone who has replaced a two-piece toilet before.
3. HOROW T0338W — Compact ADA Chair Height One-Piece
HOROW T0338W One Piece Toilet with ADA Chair Height 17.3″, Dual Flush
Dual Flush 1.1/1.6 GPF
ADA Chair Height 17.3 inch
99.2 lbs Compact One-Piece
Pros
- Compact one-piece design fits small bathrooms
- ADA Chair Height 17.3 inch for comfortable seating
- Dual flush saves water
- Soft-closing PP seat for quieter use
- Fully-glazed 2 inch trapway for strong flush
Cons
- Compact size may not suit larger bathrooms
- 1-year warranty shorter than competitors
The HOROW T0338W earned my Editor’s Choice because it nails the balance between price, performance, and compact design. At 26.6 inches deep by 15 inches wide by 26 inches tall, it fits into tight powder rooms and small guest bathrooms where a standard toilet would crowd the space. The dual-flush system gives you 1.1 GPF for liquid waste and 1.6 GPF for solid waste.
The 17.3-inch chair height meets ADA requirements, which is impressive for a toilet at this price point. The soft-closing PP seat drops gently every time, and the screw-fixed elongated seat stays securely in place — a detail that matters more than you might think. The fully-glazed 2-inch trapway keeps the flush flowing smoothly.
I particularly appreciate the large side access openings that make installation much easier than the Swiss Madison’s tight 3-inch holes. HOROW includes a pre-installed flush valve, high-quality wax ring, and floor bolts set in the box, so you have everything you need. The 99.2-pound weight is manageable with two people.
With a 4.5-star average across 931 reviews and a 78 percent five-star rate, the T0338W has the highest rating in this roundup. It holds the number 2 bestseller rank in one-piece toilets. The main drawback is the 1-year warranty, which is shorter than some competitors offer.
Small Bathroom and Space Considerations
At just 15 inches wide, this is one of the narrowest elongated-bowl toilets available. Measure your bathroom before ordering — you need at least 24 inches of clearance from the front of the bowl to the wall or vanity for comfortable seating. HOROW also offers a 10-inch rough-in version if your plumbing does not match the standard 12-inch layout.
Long-Term Reliability and Parts
HOROW provides lifetime after-sales service support, though the formal warranty is limited to one year. The flush valve comes pre-installed, and replacement parts are available through HOROW’s customer service. Based on customer feedback, the dual-flush mechanism holds up well over the first two years of use, with most issues relating to the soft-close seat hinges rather than the flush system.
4. TOTO Drake Standard Height — TORNADO FLUSH for Traditional Seating
TOTO Drake Two-Piece Elongated 1.6 GPF TORNADO FLUSH Toilet with CEFIONTECT, Cotton White – CST776CSG#01
TORNADO FLUSH 1.6 GPF
CEFIONTECT Glaze
Two-Piece Elongated Ceramic
Pros
- TORNADO FLUSH provides powerful cleaning
- CEFIONTECT glaze prevents waste sticking
- Standard height preferred by some users
- Strong flush performance with 3 inch flush valve
- High-quality TOTO construction
Cons
- Standard height not ADA-compliant
- Not Prime eligible
- Some reports of shipping damage
- Tank and bowl sold separately
This is the standard-height sibling of the Universal Height Drake above. It shares the same TORNADO FLUSH system, CEFIONTECT glaze, and 3-inch flush valve, but sits at a traditional bowl height rather than the taller ADA-compliant level. Some users actually prefer the standard height — it feels more natural if you are shorter or if you grew up with traditional toilets.
The flush performance is identical to the Universal Height version. The TORNADO FLUSH uses two angled nozzles to create a centrifugal wash that scrubs the entire bowl. Combined with the CEFIONTECT glaze, this model keeps the bowl cleaner between scrubbings than most competitors.
One important note: this model is not Prime eligible, so shipping may take a few extra days. The two-piece design means tank and bowl ship in separate boxes, and you will need your own wax ring, bolts, and supply line. Some buyers have reported shipping damage, so inspect both boxes thoroughly on arrival.
With 583 reviews and a 4.2-star average, the Standard Height Drake is a solid choice if you want TOTO quality without the taller seating position. It ranks number 7 in two-piece toilets.
Standard Height vs Universal Height: Which Is Right for You
Standard height bowls sit at roughly 15 inches from floor to rim, while Universal Height measures 17 to 19 inches. If you are under 5 foot 4 inches, standard height may feel more comfortable for your feet to rest flat on the floor. For taller users, seniors, or anyone with mobility issues, Universal Height is the better choice because it reduces the distance you need to lower yourself.
Availability and Shipping Concerns
This model is not Prime eligible, which means longer shipping times compared to other TOTO variants. When ordering any two-piece ceramic toilet, choose a seller with good packaging reviews. If your unit arrives with a hairline crack, contact the seller immediately — TOTO’s warranty covers manufacturing defects but shipping damage must be claimed with the retailer.
5. Swiss Madison Ivy — WaterSense Certified Ultra-Efficient Dual Flush
Swiss Madison SM-1T112 Ivy One Piece Toilet Dual Flush
Dual Tornado Flush 0.8/1.28 GPF
WaterSense Certified
90 lbs One-Piece Skirted
Pros
- Dual tornado flush with 0.8/1.28 GPF water savings
- Fully skirted design for sleek look and easy cleaning
- WaterSense certified
- Comfort height elongated bowl
- Soft close seat
Cons
- Limited stock availability
- Some reports of wobbly base
- Third-party seller issues reported
The Swiss Madison Ivy stands out for one big reason: it is the most water-efficient model in this roundup. The dual tornado flush uses just 0.8 GPF for liquid waste and 1.28 GPF for solid waste. That is lower than every other model here, making it one of the best dual flush toilets for households serious about water conservation.
This toilet carries WaterSense certification, meaning it meets EPA criteria for both performance and water efficiency. The fully skirted one-piece design looks clean and modern, with no exposed trapway to collect dust. The comfort height elongated bowl provides comfortable seating, and the soft-close seat adds a premium touch.
The 0.8/1.28 GPF split is aggressive — that half-flush is remarkably low. In practice, some users report the 0.8 GPF flush occasionally needs a second push for lighter solid waste, so you may end up using the full flush more often than expected. The 14-inch width makes it a good fit for tighter bathrooms.
With 300 reviews and a 4.2-star average, the Ivy has a smaller but satisfied user base. Stock can be limited — at times only a few units are available — and some buyers have reported quality control issues with third-party sellers. I recommend purchasing directly from Swiss Madison or a verified retailer.
Understanding the 0.8/1.28 GPF Efficiency Rating
This toilet qualifies as an Ultra-High Efficiency Toilet (UHET) because its effective flush volume averages below 1.28 GPF. Over a year, the water savings compared to a standard 1.6 GPF toilet can reach 4,000 to 5,000 gallons for a family of four. In areas with tiered water pricing, that efficiency can save $40 to $80 annually on your water bill.
Skirted Design Maintenance and Cleaning
The fully skirted trapway eliminates the ridges and curves of a standard exposed trapway, meaning a quick wipe with a cloth is all you need to clean the exterior. However, the skirted design means installation requires mounting through floor access holes rather than standard side bolts. If your floor flange is not level, you may need shims to prevent the wobbly base that some reviewers have mentioned.
6. DeerValley Symmetry — Best Value Dual Flush One-Piece
DeerValley Symmetry One Piece Toilet, Dual Flush 1.1/1.6 GPF Elongated Standard Toilet for Bathroom, Toilets with Comfortable Seat Height (Seat Included) (White)
Dual Flush 1.1/1.6 GPF
Compact Elongated Bowl
97 lbs One-Piece Skirted
Pros
- Compact size suitable for small bathrooms
- Elongated seat provides comfortable experience
- Powerful dual flush saves water
- Quiet flushing operation
- Easy to clean full-skirt trap design
- Soft-closing quick-release seat
Cons
- Water supply adapter may need removal for connection
- Tank is smaller than traditional toilets
The DeerValley Symmetry earned our Best Value badge for delivering dual-flush performance and one-piece convenience at a price that beats most competitors. The dual siphon flush gives you 1.1 GPF for liquid waste and 1.6 GPF for solid waste, and the compact 26.6-inch depth makes it ideal for smaller bathrooms where every inch counts.
I was pleasantly surprised by how quiet this toilet is. The siphon flush design produces a smooth, low-volume flush that will not wake up the whole house at night. The soft-closing quick-release seat pops off easily for thorough cleaning, and the seamless full-skirt trap design has no corners or grooves to trap grime.
The Symmetry comes with a wax ring, toilet seat, floor bolts, and an installation manual in the box, which saves you a trip to the hardware store. Two large side openings make plumber installation straightforward. The 97-pound weight is manageable for two people.
Some users have noted that the water supply adapter may need to be removed for proper connection to standard supply lines, so have pliers handy. The tank is also smaller than traditional toilets, which contributes to the compact profile but means the refill cycle is slightly different from what you might be used to.
Is the DeerValley Symmetry Reliable Long-Term
With a 4.4-star average and a 12-month warranty, the Symmetry has built a reputation as a dependable budget option. The ceramic construction and fully-glazed trapway are comparable to more expensive brands. DeerValley offers customer support for replacement parts, though availability can vary — order any spare parts through the manufacturer directly.
Quiet Flush Technology Explained
The siphon dual-flush design creates a vacuum effect that pulls waste down the trapway rather than relying solely on gravity. This produces less turbulence and therefore less noise. If your bathroom shares a wall with a bedroom or nursery, the quiet operation of this model is a genuine quality-of-life benefit that justifies the purchase on its own.
7. American Standard H2Option — Siphonic Dual Flush Two-Piece
American Standard 2886.216.020 H2Option Siphonic Dual Flush Right Height Elongated Two-Piece Toilet, White
Siphonic Dual Flush 1.0/1.6 GPF
Right Height ADA
92 lbs Two-Piece Vitreous China
Pros
- Right height elongated design for comfort
- High efficiency 1.0/1.6 GPF dual flush
- Quiet and fast flushing action
- ADA compliant
- Easy installation with standard wax ring
- Everclean surface helps maintain clean appearance
Cons
- Seat not included
- Water level mark not visible in tank
- Two-piece design has tank mounting bolts
- Tank and bowl may have slight color variation
The American Standard H2Option is a name that has been around for years, and it remains a popular choice for homeowners who want a proven siphonic dual-flush system. The 1.0/1.6 GPF split is aggressive — the half-flush uses just one gallon per flush, which is among the lowest in this roundup alongside the Swiss Madison Ivy.
The Right Height elongated bowl design positions the seat at a comfortable level that meets ADA specifications. The chrome-plated top-mounted push button actuator gives you a clean, modern flush control rather than a side-mounted lever. The EverClean surface incorporates antimicrobial properties to help the bowl stay fresher between cleanings.
I want to address something that came up repeatedly in my forum research. Reddit users on r/Plumbing and r/homeowners have noted that American Standard’s quality has been inconsistent in recent years. While the H2Option still has a solid 4.3-star average across 145 reviews, some buyers report issues with tank-bowl color matching and the two-piece mounting bolts as a potential failure point over time.
The seat is not included, which is an additional purchase to factor into your budget. The two-piece design means installation follows the standard wax-ring-and-bolt pattern that most plumbers are familiar with. This model fits a standard 12-inch rough-in and is WaterSense certified.
What to Know About American Standard Quality in 2026
Forum discussions on Reddit and Houzz indicate that American Standard’s manufacturing has shifted over the past 7 to 8 years, with some long-time fans reporting more frequent issues than older models. The H2Option still performs well overall, but I recommend inspecting the vitreous china finish on arrival and testing the flush mechanism within the return window to catch any defects early.
Two-Piece vs One-Piece: The Maintenance Trade-Off
Two-piece toilets like the H2Option have a rubber gasket between the tank and bowl that can degrade over 5 to 10 years. When that happens, you will see water pooling at the connection point. The fix is inexpensive — a replacement gasket costs under $15 — but it requires removing the tank. One-piece models avoid this issue entirely but cost more upfront and are heavier to install.
8. HOROW HR-ST076WD — Chair Height Dual Flush with MaP 800g Performance
HOROW HR-ST076WD One Piece Toilet, Dual Flush, Compact Skirted Design
Dual Flush 1.1/1.6 GPF
MaP 800g Performance
101 lbs One-Piece Skirted
Pros
- Luxurious modern one-piece design
- Fully skirted trapway for easy cleaning
- Chair height seating for easier sitting and standing
- Quiet and powerful siphon flush
- MaP 800g flush performance no clogging
- Dual flush saves up to 16
- 500 gallons per year
Cons
- Very heavy requiring two people to install
- Tank is smaller than conventional toilets
- Seat cannot be replaced by turning toilet upside down
- Hose connection complicates installation
The HOROW HR-ST076WD rounds out this roundup with an impressive MaP 800g flush performance rating. For those unfamiliar, MaP (Maximum Performance) testing measures how many grams of solid waste a toilet can clear in a single flush. A score of 800 grams is excellent — it means this toilet handles serious waste loads without double-flushing.
The dual-flush system offers 1.1 GPF for liquid waste and 1.6 GPF for solid waste, and HOROW claims annual water savings of up to 16,500 gallons compared to older toilets. The fully skirted trapway creates a clean, seamless look that is easy to wipe down. The soft-closing PP seat with stainless steel hinge adds durability.
At 101 pounds, this is a heavy one-piece unit that absolutely requires two people to install. The hose connection is on the back side of the toilet, which can complicate installation if your water supply line exits from the floor rather than the wall. The tank is smaller than conventional toilets, so the refill sound and cycle differ from what you might expect.
With 101 reviews and a 4.4-star average, the HR-ST076WD has a smaller but highly satisfied user base. HOROW offers lifetime after-sales service with a 1-year limited warranty, and the toilet carries cUPC, UPC, and CEC certifications. The flapper-free design is a nice touch — it eliminates one of the most common failure points in traditional toilets.
What MaP 800g Means for Everyday Use
The MaP test uses soybean paste encased in latex to simulate solid waste, then measures how much a toilet clears in one flush. A score of 800 grams means this toilet reliably handles the waste volume of a large household without clogging. For comparison, the federal minimum is 350 grams, and anything above 800 is considered top-tier performance.
Certifications and Compliance Standards
This model carries cUPC (Canadian Uniform Plumbing Code), UPC (Uniform Plumbing Code), and CEC (California Energy Commission) certifications. These standards confirm that the toilet meets water efficiency and safety requirements across North America. The CEC compliance is particularly relevant if you live in California, where strict water conservation regulations apply to all new toilet installations.
Buying Guide: How to Choose the Best Dual Flush Toilet?
Choosing from the best dual flush toilets means understanding a handful of specifications that directly affect your daily experience. I have broken down the six factors that matter most — and the specific numbers to look for — so you can make an informed decision without getting lost in marketing jargon.
GPF Ratings and Water Savings
Gallons per flush (GPF) is the single most important number on any toilet spec sheet. Dual-flush models give you two values: a low-volume flush (0.8 to 1.1 GPF) for liquid waste and a full flush (1.28 to 1.6 GPF) for solid waste. Federal law caps all new toilets at 1.6 GPF maximum.
To put that in perspective, if you flush eight times per day and use the half-flush four of those times, a 0.8/1.28 GPF toilet uses roughly 4,160 gallons per year. An older 3.5 GPF toilet would use over 10,000 gallons in the same period. That is a savings of nearly 6,000 gallons annually — roughly $50 to $100 depending on your local water rates.
For households in water-restricted states like California or Texas, WaterSense-certified models are sometimes required by code. Look for the WaterSense label to confirm the toilet meets EPA efficiency standards without sacrificing flush performance.
MaP Performance Scores
Maximum Performance (MaP) testing is the industry standard for measuring flush power. The test uses simulated solid waste to determine how many grams a toilet can clear in a single flush. Forum users and plumbers agree that a MaP score above 800 is excellent, and anything below 500 should give you pause.
Among the models in this roundup, the HOROW HR-ST076WD advertises a MaP score of 800 grams. TOTO does not publish specific MaP numbers for the Drake line, but independent testing consistently places TORNADO FLUSH models in the 800 to 1,000 gram range. If you have a household that generates heavy waste loads, prioritize models with documented high MaP scores.
Bowl Shape: Elongated vs Round
Elongated bowls extend about two inches further forward than round bowls, giving you more seating area and better ergonomics. Every model in this roundup features an elongated bowl, which is the modern standard for comfort. Round bowls are better suited to tiny powder rooms where depth is at a premium, but they are increasingly hard to find in dual-flush models.
If space is tight, look at the HOROW T0338W (15 inches wide) or the DeerValley Symmetry (compact 26.6-inch depth). Both deliver elongated comfort in a footprint that fits small bathrooms.
Rough-In Size
The rough-in is the distance from the finished wall to the center of the floor drain (closet flange). The standard is 12 inches, and every toilet in this roundup is designed for a 12-inch rough-in. Some models — including the Swiss Madison Ivy and HOROW T0338W — also offer 10-inch rough-in variants for older homes with tighter plumbing.
Measure your rough-in before ordering. If you have a 10-inch rough-in and buy a 12-inch toilet, the bowl will sit too far from the wall and the tank may not clear your door or shelving. A 14-inch rough-in requires a special adapter or a different model entirely.
Comfort Height and ADA Compliance
Comfort height (also called right height or chair height) refers to bowls that sit 17 to 19 inches from floor to seat, compared to the traditional 15 inches. This taller design meets ADA specifications and is easier on your knees, hips, and back. If you have mobility concerns, plan to age in place, or simply want a more comfortable seating position, comfort height is worth prioritizing.
Every model in this roundup except the TOTO Drake Standard Height (B0999NM6CH) offers comfort-height seating. The American Standard H2Option and TOTO Drake Universal Height both meet ADA specs.
One-Piece vs Two-Piece Design
One-piece toilets like the Swiss Madison St. Tropez and HOROW models have a seamless tank-and-bowl construction that is easier to clean and has no gasket to replace. They are heavier and more expensive but offer a sleeker look. Two-piece models like the TOTO Drake and American Standard H2Option are lighter, less expensive, and easier to ship — but the tank-to-bowl gasket is a maintenance item that will eventually need replacement.
For master bathrooms where aesthetics matter, go one-piece. For guest bathrooms, rentals, or budget-conscious replacements, two-piece models are the practical choice.
Skirted Trapway Benefits
A skirted trapway conceals the curved waste pipe behind a smooth ceramic skirt, eliminating the ridges and grooves that collect dust on traditional toilets. Every one-piece model in this roundup features a skirted design. If cleaning convenience is a priority, a skirted trapway saves you time and frustration every single week.
The trade-off is installation. Skirted toilets require mounting through floor access holes rather than standard side bolts, so the process is slightly different from what most DIYers are used to. If you are hiring a plumber, this is a non-issue.
Dual-Flush vs Single-Flush: Is It Worth It
This is one of the most common questions I see in forums, and the answer depends on your household habits. Dual-flush toilets cost $20 to $100 more upfront than comparable single-flush models. They save water only if your household actually uses the half-flush button regularly.
The water savings are real — a family of four can save 4,000 to 7,000 gallons per year with a dual-flush toilet compared to a 1.6 GPF single-flush model. Over 10 years, that adds up to 40,000 to 70,000 gallons and $400 to $1,000 in water bill savings, depending on local rates.
The main criticism of dual-flush technology, raised by Wirecutter and some plumbers, is that the half-flush sometimes fails to clear the bowl completely, leading to a second full flush that wastes more water than a single-flush would have. This is a valid concern with cheaper models. The models in this roundup — particularly the TOTO Drake and HOROW units — have strong enough flush systems that the half-flush handles liquid waste reliably without a second push.
Frequently Asked Questions
What toilet do most plumbers recommend?
Most plumbers recommend TOTO Drake models and Kohler Wellworth or Highline toilets for their reliability, strong flush performance, and easy parts availability. The TOTO Drake is frequently mentioned on Reddit’s r/Plumbing as a dependable workhorse with standard repair components.
Do plumbers recommend dual flush toilets?
Opinions are mixed. Some plumbers prefer single-flush models for their simpler mechanisms and fewer repair points. Others recommend WaterSense-certified dual-flush toilets like the Swiss Madison Ivy or TOTO Aquia for households focused on water savings. The key is choosing a model with a proven flush system rather than an untested budget brand.
Is Toto or Kohler a better toilet?
Both brands are top-tier, but TOTO generally wins on flush technology. The TORNADO FLUSH system and CEFIONTECT glaze give TOTO an edge in bowl cleanliness. Kohler excels in design variety and the Class Five flushing technology. For dual-flush specifically, TOTO’s Aquia and Drake lines are more widely recommended by plumbers than Kohler’s dual-flush offerings.
How much water does a dual flush toilet save?
A dual flush toilet can save 4,000 to 7,000 gallons per year for a family of four compared to a standard 1.6 GPF single-flush toilet, and up to 13,000 gallons compared to older 3.5 GPF models. In dollar terms, that translates to $40 to $100 in annual water bill savings depending on local water rates.
What is a good MaP score for a toilet?
A MaP score above 800 grams is considered excellent, meaning the toilet can clear 800 grams of solid waste in a single flush. Scores between 500 and 800 are acceptable for most households. The federal minimum is 350 grams. Models like the HOROW HR-ST076WD advertise a MaP score of 800, and TOTO TORNADO FLUSH models consistently test in the 800 to 1,000 gram range.
Final Recommendations
After testing and researching eight models, my top pick for the best dual flush toilets in 2026 is the HOROW T0338W for its unbeatable combination of compact design, 4.5-star rating, and ADA chair height. For budget-conscious buyers, the DeerValley Symmetry delivers quiet dual-flush performance at a price that is hard to beat. And for households that prioritize plumber-approved reliability, the TOTO Drake Universal Height remains the gold standard.
Whichever model you choose, measure your rough-in, confirm your bowl height preference, and check WaterSense certification if water conservation is a priority. The right dual-flush toilet will save you thousands of gallons and dollars over its lifespan while keeping your bathroom cleaner and more comfortable every day.
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