Dual-flush elongated toilets pair an elongated bowl with separate flush options, but the products in this roundup differ in shape, height, footprint, and even whether they offer dual flush at all. My best overall pick is the HOROW T0338W One-Piece Elongated Toilet, which combines an elongated bowl, dual flush, and a 17.3-inch chair-height seat. The American Standard H2Option is a strong alternative for shoppers who prefer an established two-piece design, while the HOROW HR-ST076WD stands out for buyers working with a tighter bathroom footprint. The main tradeoffs are one-piece styling versus easier two-piece servicing, comfort height versus fit for shorter users, and compact dimensions versus extra room around the bowl. Read on for the full comparison, fit checks, and guidance on choosing a model that suits your bathroom.
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Key Takeaways
- The HOROW T0338W leads this roundup because its listed elongated shape, dual-flush operation, one-piece construction, and 17.3-inch chair-height seat make a well-rounded combination.
- Not every listed toilet is dual flush. The TOTO Drake is identified as a 1.6 GPF model, and the Casta Diva, Swiss Madison St. Tropez, and one-piece model with a 17.4-inch seat lack dual-flush specifications in their names; verify the exact configuration before buying.
- Round and elongated bowls are not interchangeable. The BAYROLL is round, so it may suit a tight room but does not meet the elongated-bowl preference that defines this roundup.
- Height and footprint create different fit priorities. Several models offer chair-height seating, while the HOROW HR-ST076WD and DeerValley compact listing are aimed at smaller rooms; confirm dimensions and rough-in before choosing.
- One-piece construction favors a streamlined exterior, while two-piece models offer a different service and replacement-parts setup. The HOROW two-piece and Gerber Maxwell Select provide alternatives to the many one-piece options.
| dual flush elongated toilet | Dimensions | Model | Rough-in | Flush volume |
|---|---|---|---|---|
| BAYROLL One-Piece Round Toilet | 25.5 × 14.7 × 27 inches | SH-S001 | 12 inches | 0.9 GPF / 1.28 GPF |
| HOROW T0338W One-Piece Elongat | 26.6 × 15 × 26 inches | T0338W | — | 1.1 GPF / 1.6 GPF |
| Casta Diva Elongated One-Piece | 25.39 × 14.56 × 26.57 inches (depth × width × height) | CD-T006 | 12 inches | 1.0 GPF (liquids) / 1.28 GPF (solids) |
| HOROW 17-Inch Comfort Height E | 28.8 × 14.2 × 33 inches (D × W × H) | HR-E17D | 12 inches | 1.1 GPF / 1.6 GPF |
| American Standard H2Option Dua | — | 606AA002.020 | — | 0.92 GPF / 1.28 GPF |
| TOTO Drake Two-Piece Elongated | — | — | 12 inches | — |
| Elongated One-Piece Toilet wit | 27.17 × 14.37 × 25.39 inches (D × W × H) | HSGW-001 | 12 inches | — |
| Casta Diva Elongated One-Piece | 27.17 × 14.37 × 25.39 inches (D × W × H) | CD-T005 | 12 inches | — |
| Gerber Maxwell Select Elongate | 28.5 × 17.5 × 31 inches (D × W × H) | GRD49210E | — | — |
| HOROW T0338W10 One-Piece Elong | 26.6 × 15 × 26 inches (D × W × H) | — | 10 inches | 1.1/1.6 GPF |
| Swiss Madison St. Tropez Comfo | 27 x 15.12 x 31.18 inches | SM-1T254 | 12 inches | 1.1 / 1.6 GPF |
| HOROW T0338WG One-Piece Toilet | 26.6 inches deep x 15 inches wide x 26 inches high | T0338WG | 12 inches; 10-inch option available | 1.1 / 1.6 GPF |
| DeerValley DV-1F0437 Elongated | 26.77 x 14.5 x 26.6 inches | DV-1F0437 | 12 inches | 1.1 / 1.28 GPF |
| HOROW HR-ST076WD Compact One-P | 28.75 x 14 x 28 inches | — | 12 inches | 1.1 GPF liquid / 1.6 GPF solid; 1.28 GPF average |
| DeerValley Compact One Piece T | 24.61 x 12.99 x 27.76 inches | DV-1F52812-AMZ | 12 inches | 1.1 / 1.6 GPF |
More Details on Our Top Picks
BAYROLL One-Piece Round Toilet with 17-Inch ADA Chair Height, Dual Flush, and Soft-Close Seat
The BAYROLL pairs a round bowl with a compact 25.5-inch depth, making it a space-conscious choice for a smaller bathroom where an elongated bowl may be harder to fit. Its 0.9/1.28 GPF dual flush uses less water per flush than the HOROW T0338W’s 1.1/1.6 GPF settings, while the 17-inch seat and quick-release soft-close seat add accessibility and easier cleaning. The fully skirted one-piece ceramic body also avoids the exposed curves of a two-piece toilet such as the HOROW HR-E17D. The tradeoff is right in the bowl shape: buyers who prioritize the extra seating room of an elongated design should choose another option in this roundup. Installation planning also needs attention because the supply pipe and floor flange are not included, and the angle valve needs suitable clearance.
Pros:- Compact 25.5-inch depth and round bowl can suit tighter bathroom layouts.
- 0.9 and 1.28 GPF flush options use less water per flush than the HOROW T0338W’s listed settings.
- 17-inch seat height and soft-close, quick-release seat support easier everyday use and cleaning.
- Fully skirted one-piece ceramic exterior has fewer hard-to-clean contours.
Cons:- Round bowl offers less seating room than the elongated options in this roundup.
- Water supply pipe and floor flange are not included.
- Angle-valve clearance and installation requirements may call for careful measurement or professional help.
Best for: Buyers fitting a chair-height toilet into a smaller bathroom who prefer a round bowl and want lower-volume flush choices.
Not ideal for: Shoppers who specifically need an elongated bowl, or homeowners who want all water-supply and floor connection parts included.
- Brand:BAYROLL
- Model:SH-S001
- Dimensions:25.5 × 14.7 × 27 inches
- Rough-in:12 inches
- Seat height:17 inches
- Flush volume:0.9 GPF / 1.28 GPF
- Material:Ceramic
- Warranty:1 year
Our verdict“Choose the BAYROLL if you need a compact, chair-height round toilet with water-saving flush options, but skip it if an elongated bowl is a priority.”
HOROW T0338W One-Piece Elongated Toilet with 17.3-Inch ADA Chair Height and Dual Flush
The HOROW T0338W is the lineup’s flexible-fit choice: it supports a 10- or 12-inch rough-in, while the Casta Diva CD-T006 is listed for a standard 12-inch rough-in only. That extra fit option can help in older bathrooms, but buyers still need to confirm their measurement before ordering. Its 17.3-inch chair-height elongated bowl, soft-close seat, and included wax ring and floor bolts make it a well-equipped choice for a more comfortable installation package. The cost of that flexibility is water use: its 1.1/1.6 GPF settings are higher than the Casta Diva’s 1.0/1.28 GPF and the American Standard H2Option’s 0.92/1.28 GPF. At 99.2 pounds, it may also be awkward to position without help.
Pros:- 10- or 12-inch rough-in options offer more fitting flexibility than the 12-inch-only Casta Diva CD-T006.
- 17.3-inch chair-height seat and elongated bowl provide a roomier, higher seating position.
- Soft-close seat, wax ring, and floor bolts are included.
- Glazed 2-inch trapway and siphon flush are specified as part of the flushing system.
Cons:- 1.1/1.6 GPF settings use more water per flush than the Casta Diva CD-T006 and American Standard H2Option.
- At 99.2 pounds, moving and positioning it may take two people.
- Rough-in measurement must be checked before installation.
Best for: Homeowners replacing a toilet in a bathroom with a confirmed 10- or 12-inch rough-in who want an elongated chair-height bowl and included installation hardware.
Not ideal for: Buyers focused on lower per-flush water use, or anyone installing alone who may struggle to handle a 99.2-pound fixture.
- Brand:HOROW
- Model:T0338W
- Dimensions:26.6 × 15 × 26 inches
- Weight:99.2 pounds
- Seat height:17.3 inches
- Flush volume:1.1 GPF / 1.6 GPF
- Trapway:Fully glazed, 2 inches
- Rough-in options:10 or 12 inches
- Warranty:1-year limited warranty
Our verdict“Pick the HOROW T0338W when its 10- or 12-inch rough-in compatibility solves a fit problem, but choose a lower-volume model if water use is your main priority.”
Casta Diva Elongated One-Piece Toilet with 17.5-Inch Comfort-Height Seat
The Casta Diva CD-T006 stands out for pairing an elongated bowl and 17.5-inch seat with a relatively low-volume 1.0/1.28 GPF dual flush. Compared with the HOROW T0338W, it uses less water at both settings; compared with the American Standard H2Option, it has a taller listed seat and a skirted one-piece form. That combination suits buyers who want comfortable seating, a cleaner-looking exterior, and reduced flush volumes in one package. The quick-release soft-close seat also makes routine seat removal easier. Its main limitation is fit: it requires a standard 12-inch rough-in, unlike the HOROW T0338W’s 10- or 12-inch options. Warranty support is also limited to one year of customer service, with lifetime technical consulting rather than a lifetime parts warranty.
Pros:- 1.0/1.28 GPF flush settings use less water per flush than the HOROW T0338W’s 1.1/1.6 GPF options.
- 17.5-inch seat is taller than the listed seats on the American Standard H2Option and HOROW HR-E17D.
- Skirted one-piece construction and quick-release seat support easier cleaning.
- Installation hardware is included.
Cons:- Requires a standard 12-inch rough-in, with no alternate rough-in option listed.
- Warranty provides one year of limited customer service rather than a stated lifetime parts warranty.
- The taller 17.5-inch seat may not suit every user.
Best for: Homeowners with a standard 12-inch rough-in seeking an elongated chair-height one-piece toilet with low-volume dual-flush settings.
Not ideal for: Buyers with a 10-inch rough-in or those who prioritize a longer parts warranty over the listed technical consulting support.
- Brand:Casta Diva
- Model:CD-T006
- Type:One-piece elongated toilet
- Dimensions:25.39 × 14.56 × 26.57 inches (depth × width × height)
- Seat height:17.5 inches
- Flush volume:1.0 GPF (liquids) / 1.28 GPF (solids)
- Rough-in:12 inches
- Seat:Soft-close, quick-release PP
- Warranty:1-year limited customer service; lifetime technical consulting
Our verdict“The Casta Diva is a strong fit for buyers who want a tall, skirted elongated toilet with lower-volume flush settings and have a 12-inch rough-in.”
HOROW 17-Inch Comfort Height Elongated Two-Piece Toilet with Dual Flush
The HOROW HR-E17D is the clearest option here for buyers who prefer a traditional two-piece toilet rather than a skirted one-piece design. Its 17-inch chair-height seat and elongated bowl provide the comfort-focused format shared by the Casta Diva CD-T006, while its separate tank and bowl may appeal to shoppers replacing a familiar two-piece setup. The MAP 1000g specification gives buyers a stated performance measure, and the included wax ring, T-bolts, caps, and seat reduce the need to source basic installation parts separately. Its tradeoff is water use: 1.1/1.6 GPF is higher than the Casta Diva and American Standard H2Option settings. The two-piece shape also has more joints and contours to clean than those one-piece alternatives.
Pros:- Two-piece construction suits buyers replacing a similar traditional toilet format.
- 17-inch chair-height seat and elongated bowl provide a comfort-oriented fit.
- MAP 1000g performance specification is provided.
- Wax ring, T-bolts, caps, and seat are included.
Cons:- 1.1/1.6 GPF settings use more water per flush than the Casta Diva CD-T006 and American Standard H2Option.
- Tank-to-bowl joints and exposed contours require more cleaning than a skirted one-piece design.
- At 28.8 inches deep, it is longer than the listed Casta Diva CD-T006.
Best for: Buyers replacing a standard two-piece toilet who want an elongated chair-height model with included basic installation components.
Not ideal for: Shoppers seeking the lowest listed flush volumes or a smooth one-piece exterior that is simpler to wipe down.
- Brand:HOROW
- Model:HR-E17D
- Type:Two-piece elongated toilet
- Dimensions:28.8 × 14.2 × 33 inches (D × W × H)
- Weight:95 pounds
- Seat height:17 inches
- Flush volume:1.1 GPF / 1.6 GPF
- Rough-in:12 inches
- Warranty:1-year limited warranty; lifetime after-sales service
Our verdict“Choose the HOROW HR-E17D if you want a familiar two-piece format with an elongated chair-height bowl, but favor a one-piece model for lower flush volumes and simpler exterior cleaning.”
American Standard H2Option Dual-Flush Elongated Toilet, Chair Height, White
The American Standard H2Option is a straightforward choice for buyers who want an elongated two-piece toilet with low-volume dual-flush settings and a surface designed to resist buildup. Its 0.92/1.28 GPF options are lower than the HOROW HR-E17D’s 1.1/1.6 GPF settings, while the EverClean surface and included slow-close seat add practical everyday features. At a listed 16.5-inch bowl height, it sits lower than the 17- to 17.5-inch options from HOROW and Casta Diva, which may suit people who find taller seats uncomfortable. The tradeoff is that the supplied details do not give a rough-in size, dimensions, or a performance rating, so fit and flushing comparisons are less complete than for those alternatives. Buyers should confirm those details before choosing it.
Pros:- 0.92/1.28 GPF options use less water per flush than the HOROW HR-E17D’s 1.1/1.6 GPF settings.
- EverClean surface is designed to resist buildup.
- 16.5-inch bowl height may suit buyers who prefer a lower seat than the 17- to 17.5-inch alternatives.
- Slow-close seat, chrome push-button actuator, wax ring, and bolt caps are included.
Cons:- Listed bowl height is lower than the HOROW HR-E17D and Casta Diva CD-T006.
- No rough-in measurement or overall dimensions are provided in the product data.
- No flush-performance rating is specified for comparison with the HOROW HR-E17D’s MAP 1000g figure.
Best for: Buyers who want an American Standard elongated two-piece toilet with lower-volume dual flushes, a buildup-resistant surface, and a slightly lower chair-height bowl.
Not ideal for: Shoppers who need a listed rough-in measurement, a taller 17-inch-plus seat, or detailed flush-performance specifications before purchase.
- Brand:American Standard
- Model:606AA002.020
- Type:Two-piece dual-flush toilet
- Bowl shape:Elongated
- Bowl height:16.5 inches
- Flush volume:0.92 GPF / 1.28 GPF
- Surface:EverClean
- Included components:Slow-close seat, chrome push-button actuator, wax ring, bolt caps
Our verdict“Pick the H2Option for its lower-volume flush settings and EverClean surface if its 16.5-inch height and confirmed installation fit match your bathroom.”
TOTO Drake Two-Piece Elongated Toilet, 1.6 GPF, Universal Height, Tornado Flush with CEFIONTECT, Cotton White
The TOTO Drake is the choice here when bowl rinsing and a familiar two-piece layout matter more than dual-flush water selection. Its Tornado Flush sends water around the bowl, while the CEFIONTECT glaze is designed to help waste wash away and reduce buildup. That gives it a cleaning-focused advantage over the dual-flush HOROW T0338W10, which lets you choose between 1.1 and 1.6 GPF but uses a different siphon-flush setup.
The tradeoff is central to this roundup: this Drake has a single 1.6 GPF flush, so it does not offer the lower-volume option buyers seek in a dual-flush toilet. Its universal-height elongated bowl suits people who want a more comfortable sitting height, but the seat and key installation supplies are sold separately. I’d choose it for its flush and glaze, not for water-selection flexibility.
Pros:- Tornado Flush uses a circular washing action to rinse the bowl.
- CEFIONTECT glaze is designed to help limit waste buildup.
- Universal-height design can make sitting and standing easier.
- Elongated bowl provides more seating space than a round bowl.
Cons:- Single 1.6 GPF flush does not provide dual-flush choice.
- Seat, wax ring, mounting bolts, and water supply lines are not included.
- Its 12-inch rough-in will not suit bathrooms configured for a different rough-in.
Best for: Buyers who prioritize bowl-rinsing features and universal-height comfort over dual-flush water savings.
Not ideal for: Shoppers specifically seeking a dual-flush toilet or a package that includes the seat, wax ring, and mounting bolts.
- Configuration:Two-piece
- Bowl shape:Elongated
- Flush rate:1.6 GPF
- Flush system:Tornado Flush
- Glaze:CEFIONTECT
- Height:Universal Height; ADA height capable
- Rough-in:12 inches
- Trap seal:2-1/8 inches
Our verdict“Choose the Drake for its bowl-rinsing system and universal height, but skip it if dual-flush control is a requirement.”
Elongated One-Piece Toilet with 17.4″ Comfort Chair Height Seat
Among these five options, the Lamanelle HSGW-001 offers the lowest stated flush volumes: 0.8 GPF for liquid and 1.28 GPF for solid waste. That makes its dual-flush setup a stronger fit for households focused on using less water than the Gerber Maxwell Select, whose options are 1.0 and 1.28 GPF. The listed siphon-jet performance and WaterSense claim add context for buyers weighing efficiency against flushing strength.
Its 17.4-inch comfort-height seat and included soft-close mechanism also make it appealing for users who want an easier sit-to-stand height without adding a seat. Compared with the Casta Diva, it has lower stated flush volumes, but the Casta Diva includes installation hardware and a wax seal; those inclusions are not specified for the Lamanelle. The elongated footprint and single white finish limit fit and style flexibility.
Pros:- 0.8/1.28 GPF dual-flush rates offer a low-volume liquid option.
- 17.4-inch ADA-compliant comfort-height seat is specified.
- Soft-close seat mechanism is included.
- Siphon-jet flush is described as delivering a 1000-gram performance score.
Cons:- Available only in white.
- Elongated dimensions may not suit very small bathrooms.
- Included installation supplies are not specified.
Best for: Water-conscious households that want an elongated dual-flush toilet with a tall comfort-height seat and soft-close lid.
Not ideal for: Buyers with very tight bathroom clearances or anyone who needs finish choices beyond white.
- Brand:Lamanelle
- Model:HSGW-001
- Configuration:One-piece
- Dimensions:27.17 × 14.37 × 25.39 inches (D × W × H)
- Seat height:17.4 inches
- Rough-in:12 inches
- Dual-flush rates:0.8 GPF liquid / 1.28 GPF solid
- Flush performance:1000-gram siphon-jet score
Our verdict“Pick the Lamanelle if low stated flush volumes and a tall, soft-close seat matter more than included installation supplies or color choice.”
Casta Diva Elongated One-Piece Toilet with 17-Inch Comfort Height Seat
The Casta Diva CD-T005 stands out for what arrives with the toilet: its package lists a slow-close, quick-release seat, wax seal, mounting kit, and fill and flush valves. That is a more complete starting point than the Lamanelle HSGW-001, whose included installation supplies are not specified, and it can reduce the number of separate parts a buyer needs to source. The skirted one-piece body also presents fewer exposed contours to clean.
Its dual-flush rates are 1.1 GPF for liquids and 1.6 GPF for solids, so it does not match the Lamanelle’s lower 0.8/1.28 GPF figures. The 17-inch seat height offers a comfort-height option, while the fully glazed trapway and listed 1000-gram flush score speak to flushing performance. The 12-inch rough-in is a fixed fit requirement, and its compact dimensions still need to be checked against the room.
Pros:- Includes slow-close, quick-release seat and lid.
- Package includes wax seal, mounting kit, and fill and flush valves.
- Skirted one-piece design has fewer exposed contours to clean.
- Fully glazed trapway and listed 1000-gram flush score.
Cons:- Its 1.1/1.6 GPF rates are higher than the Lamanelle’s stated 0.8/1.28 GPF rates.
- Requires a standard 12-inch rough-in.
- Compact dimensions may not suit every bathroom layout.
Best for: Homeowners who want a skirted one-piece dual-flush toilet with a seat and several installation components included.
Not ideal for: Buyers seeking the lowest possible flush volumes or those whose bathroom cannot accommodate a 12-inch rough-in.
- Model:CD-T005
- Configuration:Skirted one-piece
- Material:Ceramic
- Dimensions:27.17 × 14.37 × 25.39 inches (D × W × H)
- Seat height:17 inches
- Dual-flush rates:1.1 GPF liquids / 1.6 GPF solids
- Rough-in:12 inches
- Included seat:Polypropylene, slow-close, quick-release
- Installation components:Mounting kit, wax seal, fill and flush valves, and hardware
Our verdict“Choose the Casta Diva for its included seat and installation components, unless your priority is the lowest flush volume.”
Gerber Maxwell Select Elongated Two-Piece Dual-Flush Toilet, White
The Gerber Maxwell Select is the straightforward pick for buyers who prefer a conventional two-piece toilet but still want dual-flush control. Its 1.0 and 1.28 GPF options give it a lower stated liquid-flush rate than the Casta Diva’s 1.1 GPF option, and the package includes an elongated soft-close seat. A wax ring and mounting hardware are also listed, unlike the Lamanelle, for which installation supplies are not specified.
The glazed trapway is intended to help prevent clogs, while the tool-free installation kit may simplify setup. However, “tool-free” does not make a full-size toilet light: at 81.9 pounds, it may take careful handling during installation. Its listed dimensions are also broader and taller than the compact one-piece options here. I’d favor it for an included-parts two-piece package, not for a lighter or more space-conscious installation.
Pros:- 1.0/1.28 GPF dual-flush options.
- Elongated soft-close seat is included.
- Wax ring and mounting hardware are included in the installation kit.
- Glazed trapway is designed to help prevent clogs.
Cons:- At 81.9 pounds, the toilet can be difficult to handle during installation.
- Listed dimensions are larger than those of the compact Lamanelle and Casta Diva.
- Two-piece construction has a separate tank-to-bowl joint.
Best for: Buyers who want a two-piece elongated dual-flush toilet with the seat, wax ring, and mounting hardware included.
Not ideal for: Solo installers who cannot safely handle an 81.9-pound toilet, or buyers with limited bathroom space.
- Model:GRD49210E
- Configuration:Two-piece
- Bowl shape:Oval/elongated
- Dual-flush options:1.0 GPF and 1.28 GPF
- Dimensions:28.5 × 17.5 × 31 inches (D × W × H)
- Weight:81.9 pounds
- Seat:Included elongated soft-close seat
- Installation:Tool-free kit with wax ring and mounting hardware
Our verdict“Choose the Maxwell Select for a two-piece dual-flush package with the seat and installation kit included, provided its weight and footprint work for your install.”
HOROW T0338W10 One-Piece Elongated Toilet with ADA Chair Height and Dual Flush
The HOROW T0338W10 earns a distinct place for bathrooms with a 10-inch rough-in, a fit requirement that separates it from the 12-inch Casta Diva, Lamanelle, and TOTO Drake. Its compact 26.6-inch depth may also help where floor space is tight. The elongated bowl and 17.3-plus-inch chair-height seat bring comfort-oriented features to a smaller footprint, while the soft-close seat is included.
Its 1.1/1.6 GPF dual-flush siphon is less water-sparing on the liquid setting than the Gerber Maxwell Select’s 1.0 GPF option and the Lamanelle’s 0.8 GPF option. A fully glazed 2-inch trapway is specified, but installation may take several hours and could call for a plumber. I’d shortlist this HOROW only after confirming the rough-in measurement; its fit advantage disappears if the bathroom is set up for 12 inches.
Pros:- 10-inch rough-in suits bathrooms that cannot take the 12-inch models in this group.
- Compact 26.6-inch depth can help with limited floor space.
- 17.3-plus-inch chair-height seat and soft-close seat are specified.
- Fully glazed 2-inch trapway.
Cons:- 10-inch rough-in limits compatibility with bathrooms set up for 12 inches.
- 1.1/1.6 GPF rates use more water on the liquid setting than the Lamanelle and Gerber options.
- Installation may require a plumber and several hours.
Best for: Owners replacing a toilet in a bathroom with a verified 10-inch rough-in who want an elongated, chair-height dual-flush model.
Not ideal for: Buyers with a 12-inch rough-in or households prioritizing lower liquid-flush volume than 1.1 GPF.
- Configuration:One-piece, elongated
- Rough-in:10 inches
- Dimensions:26.6 × 15 × 26 inches (D × W × H)
- Seat height:17.3+ inches
- Flush type:Dual-flush siphon
- Flush volume:1.1/1.6 GPF
- Trapway:Fully glazed, 2 inches
- Seat:Soft-close polypropylene
- Warranty and service:1-year limited warranty; lifetime after-sales service
Our verdict“Pick the HOROW T0338W10 when a 10-inch rough-in is the deciding fit constraint, but confirm the measurement before choosing it.”
Swiss Madison St. Tropez Comfort Height One-Piece Elongated Toilet
The Swiss Madison St. Tropez suits buyers who want an elongated bowl and a one-piece profile without giving up dual-flush control. Its dual-vortex flush offers 1.1- and 1.6-GPF options, letting you use less water for lighter flushes while retaining a higher-volume setting. Compared with the HOROW HR-ST076WD, which lists an 800g MaP score, the St. Tropez emphasizes its vortex rinse design instead; the supplied specifications do not give a MaP score for this model, so buyers who prioritize a stated performance test may prefer the HOROW. Ceramic construction is described as scratch-resistant and non-porous, and a seat and installation hardware are included. The tradeoffs are practical: at 109 pounds, handling and installation can be difficult, and the one-year warranty is limited.
Pros:- Dual-vortex flush offers 1.1- and 1.6-GPF settings.
- Elongated bowl provides more sitting room than a round-bowl compact model such as the DeerValley DV-1F52812-AMZ.
- Scratch-resistant, non-porous ceramic is designed for straightforward care.
- Toilet seat and installation hardware are included.
Cons:- At 109 pounds, the toilet is cumbersome to move and position.
- The manufacturer warranty lasts only one year.
- The supplied product data does not state a MaP score.
Best for: Buyers replacing a 12-inch rough-in toilet who want a one-piece elongated bowl, two flush-volume choices, and included seat and installation hardware.
Not ideal for: DIY installers working alone or buyers who want a longer stated warranty or a published MaP performance score.
- Model:SM-1T254
- Type:One-piece, floor-mounted toilet
- Bowl shape:Elongated
- Flush system:Dual vortex, dual flush
- Flush volume:1.1 / 1.6 GPF
- Rough-in:12 inches
- Dimensions:27 x 15.12 x 31.18 inches
- Weight:109 pounds
- Warranty:1-year limited
Our verdict“Choose the St. Tropez if you want an elongated, dual-vortex one-piece toilet and can manage its heavy installation and short warranty.”
HOROW T0338WG One-Piece Toilet with ADA Chair Height and Dual Flush
The HOROW T0338WG brings several convenience features together: a 17.3-inch seat height, soft-close elongated seat, and skirted trapway. The smooth-sided exterior can reduce the awkward spots to wipe around compared with the DeerValley DV-1F0437’s rimless bowl, which focuses more on access around the bowl itself. Its 1.1/1.6-GPF siphon flush provides two water-use settings, while a fully glazed 2-inch trapway is specified. The white ceramic finish and gold flush button give it a more decorative look than the understated white finish of the Swiss Madison St. Tropez. That style choice may not suit every bathroom, and installation can take several hours or call for a plumber. The product warranty is only one year, although the listing also mentions lifetime after-sales service.
Pros:- 17.3-inch seat height supports easier sitting and standing.
- Skirted trapway presents a smoother exterior to clean.
- Soft-close elongated seat is included.
- Includes floor bolts, wax ring, and pre-installed flush valve.
Cons:- Installation may take hours and may require a plumber.
- Product warranty is limited to one year.
- Gold flush button is a distinctive finish that may not match every bathroom.
Best for: Homeowners seeking a chair-height elongated toilet with a skirted exterior, soft-close seat, and included installation components.
Not ideal for: Buyers who prefer a conventional, all-white appearance, want simple DIY installation, or need a longer product warranty.
- Model:T0338WG
- Type:One-piece toilet
- Seat height:17.3 inches
- Dimensions:26.6 inches deep x 15 inches wide x 26 inches high
- Flush system:Dual-flush siphon
- Flush volume:1.1 / 1.6 GPF
- Trapway:Fully glazed, 2 inches
- Rough-in:12 inches; 10-inch option available
- Warranty:1-year limited product warranty; lifetime after-sales service
Our verdict“Pick the T0338WG if easier exterior cleaning and chair-height comfort matter more than a plain finish or straightforward installation.”
DeerValley DV-1F0437 Elongated One-Piece Toilet with ADA-Height Seat
The DeerValley DV-1F0437 pairs a 17.5-inch seat height with a rimless bowl and quick-release seat, making it the most cleaning-focused choice in this group. The rimless design aims to make bowl surfaces easier to reach, while the removable seat helps with access around the hinges. Its 1.1/1.28-GPF dual flush differs from the 1.1/1.6-GPF setup on the HOROW T0338WG: this DeerValley’s higher setting uses less water per flush, while HOROW offers a larger-volume option. The supplied data also lists a 1000g MaP score, giving buyers a stated performance measure that the St. Tropez lacks. At 26.77 inches deep and 14.5 inches wide, it has a compact footprint, but it still requires a 12-inch rough-in. Warranty support is listed at just one year.
Pros:- 17.5-inch seat height supports easier sitting and standing.
- Rimless bowl and quick-release seat help with cleaning access.
- Dual flush uses 1.1 or 1.28 GPF.
- Product data lists a 1000g MaP score.
Cons:- The maximum flush volume is 1.28 GPF, not 1.6 GPF like the HOROW T0338WG.
- Requires a 12-inch rough-in.
- Warranty support is limited to one year.
Best for: Buyers who want chair-height seating, a removable seat for cleaning access, and a stated MaP score in a compact elongated toilet.
Not ideal for: Households that specifically want a 1.6-GPF flush option, need a nonstandard rough-in, or expect long-term warranty coverage.
- Model:DV-1F0437
- Type:One-piece elongated toilet
- Seat height:17.5 inches
- Flush system:Dual flush
- Flush volume:1.1 / 1.28 GPF
- MaP score:1000g
- Dimensions:26.77 x 14.5 x 26.6 inches
- Rough-in:12 inches
- Warranty support:1 year
Our verdict“Choose the DV-1F0437 if cleaning access and a stated 1000g MaP score outweigh the need for a higher-volume flush setting.”
HOROW HR-ST076WD Compact One-Piece Elongated Dual-Flush Toilet
The HOROW HR-ST076WD is the space-conscious elongated option here, measuring 14 inches wide and 28 inches high. Its skirted one-piece design keeps the exterior simpler to wipe than a conventional exposed trapway, while the included soft-close seat and installation accessories reduce the number of separate items to source. The dual flush offers 1.1 GPF for liquid waste and 1.6 GPF for solid waste, with a listed 1.28-GPF average. That gives it a higher-volume setting than the DeerValley DV-1F0437, whose maximum is 1.28 GPF, though DeerValley lists a higher 1000g MaP score compared with this HOROW’s 800g. The HOROW’s dimensions are compact across its width and height, but its 28.75-inch depth still needs careful bathroom fit checking. It also requires a 12-inch rough-in, and professional installation is recommended.
Pros:- 14-inch width and 28-inch height suit bathrooms where width or height is limited.
- Dual-flush settings include a 1.6-GPF option for solid waste.
- Skirted trapway makes the exterior easier to wipe.
- Soft-close seat and installation accessories are included.
Cons:- Requires a 12-inch rough-in.
- At 28.75 inches deep, it may not fit every tight bathroom layout.
- Its listed 800g MaP score is below the DV-1F0437’s stated 1000g score.
Best for: Owners of smaller bathrooms who want an elongated bowl, skirted exterior, and included setup accessories in a 12-inch rough-in format.
Not ideal for: Buyers who need a narrower front-to-back footprint, a nonstandard rough-in, or the higher listed MaP score offered by the DV-1F0437.
- Type:One-piece toilet with skirted trapway
- Dimensions:28.75 x 14 x 28 inches
- Bowl shape:Elongated
- Flush volume:1.1 GPF liquid / 1.6 GPF solid; 1.28 GPF average
- Rough-in:12 inches
- MaP score:800g
- Included components:Soft-close PP seat, flush fittings, wax ring, floor bolts, mounting accessories, instructions
- Warranty:1-year limited warranty with lifetime after-sales service
Our verdict“Choose the HR-ST076WD for a compact-width elongated toilet with a skirted exterior, provided its depth and 12-inch rough-in fit your bathroom.”
DeerValley Compact One Piece Toilet – Standard Height, Dual Flush 1.1/1.6 GPF, Quiet Soft‑Close Seat, 12″ Rough‑In, Skirted Design for Small Bathrooms
With a listed depth of just 24.61 inches and width under 13 inches, this DeerValley is the clearest fit for bathrooms where floor space is the main constraint. Its compact, round bowl separates it from the elongated options in this roundup: it saves room, but gives up the extra sitting space buyers choose an elongated bowl for. The 1.1/1.6-GPF dual flush offers the same two volume settings as the HOROW HR-ST076WD, and its fully skirted exterior is designed to reduce hard-to-reach cleaning spots. A soft-close PP seat is listed at 28 dB, adding a quiet-close feature. Unlike the chair-height HOROW T0338WG or DeerValley DV-1F0437, this model is standard height, which may be less comfortable for users who prefer easier sitting and standing. At 78 pounds, it is also heavy to position in a cramped room.
Pros:- 24.61-inch depth and 12.99-inch width suit tight bathroom layouts.
- Dual-flush system offers 1.1- and 1.6-GPF settings.
- Fully skirted design reduces exposed exterior crevices.
- Soft-close PP seat is specified to operate at 28 dB.
Cons:- Standard-height, round bowl does not provide the seating room or height of the elongated chair-height options.
- At 78 pounds, moving and positioning it can be difficult.
- Requires a 12-inch rough-in.
Best for: Owners of very small bathrooms who prioritize a short front-to-back footprint, dual flush, and a skirted exterior over an elongated bowl.
Not ideal for: Buyers who specifically need an elongated bowl, chair-height seating, or a lightweight toilet for solo installation.
- Model:DV-1F52812-AMZ
- Bowl shape:Round
- Seat height:Standard height
- Dimensions:24.61 x 12.99 x 27.76 inches
- Weight:78 pounds
- Material:Ceramic
- Flush volume:1.1 / 1.6 GPF
- Rough-in:12 inches
- Warranty:1 year
Our verdict“Choose this DeerValley when a short, narrow footprint matters more than an elongated bowl or chair-height comfort.”
How We Picked
I compared the listed models against the needs implied by dual flush and elongated bowl shopping: confirmed flush configuration, bowl shape, seat height, one-piece or two-piece construction, and any stated compact or rough-in details. I gave more weight to clearly specified features that help a buyer check both daily usability and installation fit. I also treated absent details as a reason to verify the product configuration rather than assume that a name or image confirms it.
The ranking favors toilets that match the full brief and provide a useful balance of fit, usability, and practical construction. Models with explicit dual-flush and elongated specifications rank ahead of listings with missing flush details or a round bowl. Compact models earn a distinct place for small bathrooms, while two-piece designs remain relevant for buyers who prioritize serviceability. The TOTO Drake is included as a comparison point, not a strict match: its listing specifies a 1.6 GPF flush rather than dual flush.
Factors to Consider When Choosing Dual Flush Elongated Toilets
Product names can make toilet shopping seem simpler than it is. I would confirm the bowl shape, rough-in, seat height, and flush configuration against the actual product specification sheet before deciding; these checks can matter more than a particular finish or silhouette.
Confirm That the Exact Model Is Dual Flush
A product family may include versions with different flush systems, so check the exact model number and manufacturer specifications rather than relying on a broad listing title. Dual-flush controls typically provide separate options for liquid and solid waste, but button layout and operation vary. Compare the stated flush volumes if water use is a priority, and check local plumbing requirements before purchase. A single-flush toilet with an efficient flush is not the same thing as a dual-flush model, even if both are marketed around water savings. This distinction matters in this roundup because some listings do not identify a dual-flush system, and the TOTO Drake is specified as 1.6 GPF. If the listing omits the control type or flush volumes, ask the seller for the specification sheet before ordering.
Measure the Bowl, Room, and Rough-In
Measure from the finished wall to the center of the floor drain to identify the rough-in, then compare that measurement with the toilet’s installation requirements. Also measure the available width and the distance from the front of the bowl to the opposite wall or door. An elongated bowl generally projects farther than a round bowl, which can affect door clearance in a small bathroom. Compact models can help with tight layouts, but the word “compact” does not replace checking the actual dimensions. Confirm whether the listed dimensions include the tank, seat, and any skirted base. A mismatch can turn an otherwise suitable toilet into an installation problem.
Choose Seat Height for the People Who Use It
Chair-height and ADA-height descriptions can make sitting down and standing up easier for many adults, but they do not fit every household equally well. A taller seat may feel awkward for children or shorter users whose feet do not rest comfortably on the floor. Check whether the stated height refers to the bowl rim or the top of the seat, since those measurements are different. If several people share the bathroom, weigh accessibility needs against day-to-day comfort for the shortest users. A height listed in inches is more useful than a general label, but the measurement method still matters. Match the seat height to the household rather than assuming taller is always better.
Decide Between One-Piece and Two-Piece Construction
One-piece toilets join the tank and bowl into one body, creating a continuous exterior with fewer tank-to-bowl connections to clean around. They can be bulky to move, so check delivery access and handling needs before ordering. Two-piece models separate the tank and bowl, which can make carrying and some replacement work more manageable, though the joint adds a seam to clean. Neither construction style alone tells you how easy a toilet will be to repair: confirm parts availability and the manufacturer’s documentation. Compare the HOROW and Gerber two-piece options with the one-piece majority in this roundup through that practical lens. Choose the form that suits your maintenance preferences and installation setup, not appearance alone.
Read Flush Performance Beyond the Button Count
A dual-flush button describes the available flush choices, not how effectively a toilet clears the bowl. Look for manufacturer information on flush testing, trapway design, and any stated performance standards, then check that the details apply to the exact model. Water-use figures should be compared across the two flush settings rather than reduced to a single headline number. A low-volume setting may suit liquid waste, while the higher setting is intended for solid waste; users still need to select the appropriate control. A toilet that saves water on paper may frustrate a household if it needs repeated flushes. Give verified clearing performance more weight than an unsubstantiated claim.
Plan for Cleaning, Repairs, and Replacement Parts
Skirted bases can present a smoother exterior that is easier to wipe, but the shape may affect access to floor bolts during installation or service. Soft-close seats help limit slamming, yet replacement-seat availability and hinge compatibility still matter. Before buying, check whether the seat is included, whether it is a standard shape and size, and how the flush mechanism is serviced. Ask whether common parts such as fill valves, seals, and buttons are available separately. A design with a clean appearance is less useful if a small component requires replacing a larger assembly. These maintenance checks can help distinguish a convenient toilet from one that only looks simple to care for.
Frequently Asked Questions
Are all 15 toilets in this roundup both elongated and dual flush?
No. Some listings do not state a dual-flush system, and the TOTO Drake is described as a 1.6 GPF toilet rather than a dual-flush model. The BAYROLL is specifically listed as round, so it does not meet the elongated-bowl requirement. Treat those products as comparison options, not confirmed matches. Before ordering, verify the exact model number, bowl shape, flush controls, and manufacturer specifications.
Will a compact elongated toilet fit a small bathroom better than a round toilet?
It may, but the product’s actual dimensions matter more than the “compact” label. An elongated bowl typically extends farther forward than a round bowl, while a compact elongated design may reduce that projection compared with a full-size elongated model. Measure the room, door swing, and rough-in, then compare them with the manufacturer’s dimension drawing. If every inch matters, also check clearance at the sides and behind the tank. Do not trade away the required bowl shape without confirming that a round bowl is acceptable for your household.
Does a chair-height toilet suit every adult in the household?
No. A taller seat can be easier for many adults to use, especially those who prefer a higher sitting position, but shorter users may find it less comfortable if their feet do not rest securely on the floor. Check the stated height and whether it measures to the bowl rim or the top of the seat. When users have different mobility or height needs, compare the measurements in person at a showroom if possible. A small footstool can help some users, but it should not be a substitute for a comfortable fit when choosing the toilet.
Should I choose a one-piece or two-piece dual-flush toilet?
Choose based on the installation and maintenance tradeoffs, not a blanket assumption that one style is better. One-piece models have a joined tank and bowl with fewer exterior seams, while two-piece toilets separate those components and may be easier to move in sections. A two-piece design has a tank-to-bowl connection that needs proper assembly and can add a cleaning seam. For either style, confirm parts availability, included components, and the installer’s requirements. The one-piece HOROW models and two-piece HOROW and Gerber options in this roundup illustrate both approaches.
What should I verify before ordering a dual-flush elongated toilet online?
Check the exact model number, bowl shape, dual-flush controls, rough-in, total dimensions, and seat height before placing an order. Confirm whether the seat and installation hardware are included, and review delivery access if the model is a large one-piece unit. Look at the manufacturer’s instructions for water-supply connection and any compatibility requirements. If the listing leaves out flush volumes or the measurement method for seat height, request clarification instead of relying on a similar model’s details. These checks can prevent an incorrect fit or an unexpected single-flush configuration.
Conclusion
For most shoppers who want the category’s core features, I would start with the HOROW T0338W as best overall: its listed elongated bowl, dual flush, one-piece build, and 17.3-inch chair-height seat form a balanced package. For best value, compare the HOROW two-piece dual-flush model and Gerber Maxwell Select by checking included parts, dimensions, and verified flush specifications rather than choosing by style alone. For a best premium-style pick, the one-piece HOROW options offer a more continuous exterior, though you should confirm parts access and exact configuration. For beginners, the American Standard H2Option is a straightforward place to start if its dimensions and specifications suit the installation. For small bathrooms, compare the HOROW HR-ST076WD and DeerValley compact model against your room measurements; skip the round BAYROLL if an elongated bowl is non-negotiable. Before choosing any model, verify that the exact listing is both elongated and dual flush—those details are not confirmed for every product here.
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