A floor-mount rear-discharge toilet can suit a bathroom where the waste line exits through the wall, but the outlet position and rough-in must match your plumbing. My best overall pick is the MaceratingFlo 18-Inch ADA Comfort Height Dual-Flush Toilet, which pairs an elongated bowl with a practical height and two flush settings. The Compact 16.5-Inch Two-Piece Toilet is a standout for tighter spaces, while the Swiss Madison Calice offers a distinctive matte-black finish. The main tradeoffs are fit and installation compatibility, bowl height, and whether you value a skirted look or dual-flush control. Read on for the full comparison and guidance on choosing a model that works with your bathroom.
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Key Takeaways
- The MaceratingFlo 18-inch ADA comfort-height dual-flush model leads this lineup by combining an elongated bowl, accessible height, and dual-flush control in a conventional two-piece format.
- The 16.5-inch Compact model is the clearest space-conscious choice, but its shorter bowl may be less comfortable for people who prefer a taller seat.
- Several models reach 18 to 19 inches, so buyers who want a higher seat can compare the Vomlor, SUPERFLO, and Simple Project options by flush controls and included features.
- Skirted MaceratingFlo models prioritize a cleaner exterior profile; their design may make cleaning around the base simpler, though exact rough-in compatibility still comes first.
- The Swiss Madison Calice stands apart mainly for its matte-black finish, while the Lift Assure kit stands out for its P-trap configuration; neither distinction replaces checking the existing wall outlet and connection dimensions.
| floor mount rear discharge toilet | Seat | Brand | Model | Included components |
|---|---|---|---|---|
| Compact 16.5" Two-Piece Rear O | Soft-close | — | — | — |
| MaceratingFlo Rear Outlet Two- | — | MaceratingFlo | MTO00T01-A | Toilet bowl, toilet seat, toilet tank, extension pipe, fittings, mounting screws and fasteners |
| Vomlor 18" ADA Elongated Rear | — | — | — | — |
| MaceratingFlo Rear Discharge T | — | MaceratingFlo | MT01T02-2-2 | Flexible and rigid extension pipes, mounting screws, bowl, tank, and seat |
| ARES 18-Inch Comfort-Height Re | — | MaceratingFlo | MTO00TO2-A | Toilet bowl and tank, seat, flexible and rigid extension pipes, mounting screws and fasteners |
| SUPERFLO Rear Outlet Tall Toil | Soft-close | SUPERFLO | H120 | Rear drain connection tube, bowl, tank, extra extension pipe |
| Maceratingflo Skirted Rear Out | Elongated, soft-close | Maceratingflo | — | Seat, installation kits, tank, bowl, flexible and hard extension pipes |
| SUPERFLO Rear Outlet Toilet wi | Top-mounted, soft-close | SUPERFLO | — | — |
| Swiss Madison Calice Two-Piece | — | Swiss Madison | SM-2T120MB | — |
| Simple Project 19-Inch Tall Re | Soft-close | Simple Project | HT-120-2 | Curved pipe, seat, water parts, tank, round bowl |
| MaceratingFlo Rear Discharge T | — | — | — | — |
| Lift Assure 2-Piece Rear Outle | Plastic, soft-close | — | — | — |
| Simple Project Rear Discharge | Slow-close / soft-close | — | HT-120 | — |
| Simple Project 19-Inch Rear Ou | Soft-close | — | HT-120-2 | Bowl, tank, extension tubes, soft-close seat |
More Details on Our Top Picks
Compact 16.5″ Two-Piece Rear Outlet Toilet with Soft-Close Seat
The 16.5-inch compact profile makes this the space-focused choice in this group, especially for a narrow bathroom where a full-size elongated model may crowd the room. Its 7-inch rough-in and P-trap rear outlet define the plumbing fit, so check the existing connection before choosing it; this is not a drop-in replacement for a standard floor outlet. Compared with the MaceratingFlo Rear Outlet Two-Piece Toilet, this model gives buyers a stated compact dimension and rough-in, while that listing provides a two-year warranty and a fuller installation kit description. The soft-close seat and glazed surface reduce everyday noise and cleanup effort. The tradeoff is that the compact format may feel less spacious, and installation can depend on how closely the current pipe layout matches the supplied extension pipes.
Pros:- Compact 16.5-inch dimension suits tighter bathroom layouts.
- Specified 7-inch rough-in helps buyers check plumbing fit.
- Soft-close seat limits lid noise.
- Glazed surface is described as easier to clean.
Cons:- Rear P-trap outlet requires compatible plumbing.
- Installation may be difficult when the existing pipe layout does not match.
- Compact dimensions may feel less roomy than an elongated comfort-height model.
Best for: Owners of narrow bathrooms who have a compatible 7-inch rear outlet rough-in and want a compact two-piece toilet.
Not ideal for: Buyers replacing a standard floor-outlet toilet or those who prioritize a roomier bowl over saving space.
- Type:Two-piece rear outlet toilet
- Rough-in:7 inches
- Trap type:P-trap
- Seat:Soft-close
- Color:White
- Dimension:16.5 inches
Our verdict“Choose this model when bathroom space is tight and its 7-inch rear-outlet connection matches your plumbing.”
MaceratingFlo Rear Outlet Two-Piece Toilet with Tank
This two-piece rear-outlet toilet is aimed at renovations where a traditional floor outlet does not suit the bathroom layout. Its package lists an extension pipe, fittings, mounting hardware, bowl, seat, and tank, giving buyers a clearer inventory of included installation parts than the Compact 16.5″ Two-Piece Rear Outlet Toilet, whose description highlights extension pipes but gives a 7-inch rough-in instead. A two-year manufacturer warranty is also stated. The listing calls the flush powerful and efficient, but it does not provide water-use figures or dimensions, so buyers cannot compare its footprint or flush consumption as precisely as they can with the Vomlor 18″ ADA Elongated Rear Outlet Tall Toilet. The main tradeoff is uncertainty around fit: rear discharge plumbing must match, and the missing measurements make pre-installation planning harder.
Pros:- Rear outlet suits layouts where a traditional floor outlet is unsuitable.
- Package lists extension pipe, fittings, fasteners, tank, bowl, and seat.
- Includes a stated two-year manufacturer warranty.
- Glazed surface is described as easy to clean.
Cons:- No dimensions or water-use specification is provided.
- Rear outlet may not match standard floor-outlet plumbing.
- Flush performance is described without a stated test measure.
Best for: Renovators with an existing compatible rear-discharge connection who want the basic toilet and installation hardware listed together.
Not ideal for: Buyers who need exact dimensions, specified water use, or confirmation that the toilet fits a particular rough-in.
- Brand:MaceratingFlo
- Model:MTO00T01-A
- Type:Rear outlet, two-piece toilet
- Included components:Toilet bowl, toilet seat, toilet tank, extension pipe, fittings, mounting screws and fasteners
- Manufacturer warranty:2 years
- Unit count:1
Our verdict“Consider it for a rear-outlet renovation when the included hardware and stated warranty matter more than detailed fit specifications.”
Vomlor 18″ ADA Elongated Rear Outlet Tall Toilet for Seniors 1.28 GPF White
The 17.75-inch seat height and elongated bowl make this the clearest mobility-focused pick among these five. Its stated 1.28 GPF single flush gives buyers a useful water-use figure, unlike the MaceratingFlo rear-outlet model with the listed two-year warranty, which provides no consumption specification. The Vomlor also includes an extension pipe, wax ring, and mounting screws, reducing the need to source several fitting parts separately. Against the MaceratingFlo 18 Inch ADA Comfort Height Dual Flush, it offers a specified bowl height and dimensions, while the MaceratingFlo lists a dual-flush option and quick-release seat. Tradeoffs include its 78-pound weight, which can make positioning harder, and the note that certain basement installations may require a macerator pump that is not included. Verify plumbing and access needs before purchase.
Pros:- 17.75-inch ADA-compliant seat height can ease sitting and standing.
- Elongated bowl provides a roomier seating shape.
- Specified 1.28 GPF single flush supports water-use comparison.
- Includes extension pipe, wax ring, soft-close seat, and mounting screws.
Cons:- At 78 pounds, it may be harder to move and position.
- A macerator pump may be needed for some basement installations and is not included.
- Single-flush design offers less flush choice than dual-flush alternatives.
Best for: Seniors and people with mobility challenges who need a tall elongated seat and have compatible rear-discharge plumbing.
Not ideal for: Buyers who need a lightweight installation, a dual-flush choice, or a toilet for a basement setup requiring an unbundled macerator pump.
- Material:Vitreous china
- Flush type:Single flush, rear discharge
- Water usage:1.28 GPF
- Seat height:17.75 inches
- Dimensions:28.75″ D x 16.33″ W x 30.31″ H
- Weight:78 lbs
- Shape:Elongated
- Warranty:2-year limited
Our verdict“Pick the Vomlor if a tall seat and stated single-flush water use take priority over easier handling or dual-flush flexibility.”
MaceratingFlo Rear Discharge Two-Piece Toilet, 18 Inch ADA Comfort Height, Elongated Bowl, Dual Flush, White
The combination of an 18-inch height, elongated bowl, and dual flush at 0.8/1.28 GPF gives this MaceratingFlo a distinct case for buyers who want accessibility with a choice of flush volume. Compared with the Vomlor 18″ ADA Elongated Rear Outlet Tall Toilet, it offers two flush settings and a quick-release seat, while the Vomlor supplies a specific 1.28 GPF figure and detailed dimensions. Its skirted ceramic exterior is intended to simplify wiping around the base, and the seat releases for cleaning. The supplied flexible and rigid extension pipes give installers options, though they do not remove the need to match the rear-discharge connection to existing plumbing. The listed dimensions appear unusually wide relative to the other models, so confirm the measurement orientation and available space before ordering.
Pros:- 18-inch height can make sitting and standing easier.
- Dual flush offers 0.8 and 1.28 GPF options.
- Quick-release soft-close seat simplifies cleaning and reduces lid noise.
- Skirted ceramic design has fewer exposed contours to wipe.
Cons:- Rear-discharge plumbing may not fit standard floor-outlet layouts.
- Listed dimensions need checking against the available room.
- The supplied extension pipes may still require adaptation to existing connections.
Best for: Buyers seeking an 18-inch comfort-height rear-discharge toilet with dual-flush settings and a quick-release seat.
Not ideal for: Shoppers with tight floor space or anyone whose plumbing does not support a rear-discharge connection.
- Brand:MaceratingFlo
- Model:MT01T02-2-2
- Material:Ceramic
- Shape:Elongated
- Height:18 inches
- Flush system:Dual flush, 0.8 / 1.28 GPF
- Dimensions:25.6″ D x 35.4″ W x 15.4″ H
- Installation method:Floor mounted
- Included components:Flexible and rigid extension pipes, mounting screws, bowl, tank, and seat
Our verdict“Choose this model for comfort height and dual-flush flexibility if its dimensions and rear plumbing connection fit your bathroom.”
ARES 18-Inch Comfort-Height Rear Outlet Two-Piece Toilet with Dual Flush
The ARES model stands out for its adjustable rear-outlet setup: rigid and flexible P-trap extension pipes are included, with stated compatibility for 3-inch and 4-inch PVC or ABS couplings. That gives installers more connection options than the Compact 16.5″ Two-Piece Rear Outlet Toilet, which specifies a 7-inch rough-in but does not list those coupling sizes. Its 18-inch comfort height, elongated bowl, and rimless 360-degree flush design make it a more accessibility-oriented choice than the compact model. The skirted exterior is intended to make routine wiping simpler. However, the listing does not state water use, warranty, or full dimensions, making it harder to compare flush economy and room fit with the MaceratingFlo 18 Inch ADA Comfort Height Dual Flush. Buyers still need to match the connectors to their plumbing.
Pros:- 18-inch comfort height supports easier sitting and standing.
- Includes rigid and flexible P-trap extension pipes.
- Stated compatibility with 3-inch and 4-inch PVC or ABS couplings.
- Rimless flush design and skirted exterior are intended to simplify cleaning.
Cons:- Rear-discharge connection limits fit with standard floor-outlet plumbing.
- No water-use figure or full dimensions are provided.
- Installers must confirm which supplied connector matches the existing pipe.
Best for: Installers and homeowners with a rear-discharge layout using 3-inch or 4-inch PVC or ABS who want an 18-inch elongated toilet.
Not ideal for: Buyers who need published dimensions, flush water-use figures, or compatibility with a standard floor outlet.
- Brand:MaceratingFlo
- Model:MTO00TO2-A
- Toilet type:Two-piece, rear outlet (P-trap)
- Height:18 inches
- Bowl shape:Elongated
- Flush design:Rimless 360° flush
- Compatible couplings:3-inch and 4-inch PVC or ABS
- Installation:Back mount; adjustable rough-in
- Included components:Toilet bowl and tank, seat, flexible and rigid extension pipes, mounting screws and fasteners
Our verdict“Choose ARES when its listed coupling compatibility fits your rear plumbing and you want comfort height with included connector options.”
SUPERFLO Rear Outlet Tall Toilet for Seniors, 18.7″ High, Dual Flush, Soft Close Seat
The 18.7-inch bowl is the main reason to choose this SUPERFLO: its added height can make sitting and standing easier for seniors and taller users. Unlike the Swiss Madison Calice, which has a standard-height elongated bowl, this model prioritizes an elevated seat and a round shape. Its 0.8/1.6 GPF dual flush gives buyers a reduced-volume option, and the soft-close seat avoids a hard slam. The smooth base may also simplify routine cleaning. The tradeoff is fit: this is a dedicated rear-discharge toilet, and the included extension pipe does not guarantee compatibility with every wall outlet. Check the outlet position and pipe dimensions before choosing it. Buyers who want an elongated bowl or more installation flexibility should compare other configurations.
Pros:- 18.7-inch height can ease sitting and standing
- Dual flush offers 0.8 and 1.6 GPF options
- Soft-close seat reduces slamming noise
- Smooth base may be easier to clean
Cons:- Rear outlet limits installation to compatible plumbing
- Pipe diameter and outlet height require careful checking
Best for: Seniors or taller users who want an elevated round bowl and have compatible rear-drain plumbing
Not ideal for: Buyers who need an elongated bowl or cannot verify their wall outlet height and pipe diameter
- Brand:SUPERFLO
- Model:H120
- Type:Two-piece toilet
- Drain type:Rear discharge
- Bowl shape:Round
- Height:18.7 inches
- Flush volume:1.6 GPF full / 0.8 GPF half
- Seat:Soft-close
- Included components:Rear drain connection tube, bowl, tank, extra extension pipe
Our verdict“Choose this SUPERFLO if an elevated round bowl is your priority and your rear-drain dimensions match.”
Maceratingflo Skirted Rear Outlet Toilet with 7″ Rough-In and Soft-Close Seat
The 7-inch rough-in gives this Maceratingflo a specific advantage for bathrooms where a more common layout will not line up. Its 3-inch outlet and supplied flexible and hard extension pipes offer two connection approaches, though the plumbing still needs to match. At 17.6 inches, it is lower than the SUPERFLO 19-Inch Tall Bowl, making this a better fit for buyers who want a less elevated seat. The elongated soft-close seat and skirted exterior favor comfort and a cleaner-looking profile, while the 1.28 GPF tornado flush uses less water per flush than the 1.6 GPF full flush on the SUPERFLO H120. Its drawback is the narrow fit case: the 7-inch rough-in and rear outlet are not a universal replacement, so measurements matter more than the included adapters suggest.
Pros:- Specified 7-inch rough-in helps target a less common layout
- Includes flexible and hard extension pipes
- Elongated soft-close seat
- 1.28 GPF flush uses less water than 1.6 GPF full-flush models
Cons:- Rear outlet and 7-inch rough-in restrict fit
- 17.6-inch bowl is shorter than the 18.7- and 19-inch tall options
Best for: Renovators whose measured plumbing calls for a 7-inch rough-in and who want an elongated, skirted bowl
Not ideal for: Buyers with standard or unverified outlet dimensions, or those seeking an especially tall seat
- Brand:Maceratingflo
- Model number:MF000T05-A
- Rough-in:7 inches
- Outlet diameter:3 inches
- Flush volume:1.28 GPF
- Bowl height:17.6 inches
- Seat:Elongated, soft-close
- Included components:Seat, installation kits, tank, bowl, flexible and hard extension pipes
- Warranty:1-year replacement, 2-year repair
Our verdict“Pick this model when your 7-inch rough-in matches and you value its lower-flush-volume, skirted design.”
SUPERFLO Rear Outlet Toilet with 19-Inch Tall Bowl and Dual Flush
This SUPERFLO pairs a 19-inch bowl with a stated rear outlet and wall-drain compatibility, giving mobility-focused buyers a taller seat and a broader described drain setup than the Simple Project 19-Inch Rear-Discharge Toilet. Its dual flush uses 1.28 GPF for a full flush and 0.8 GPF for a half flush, lower than Simple Project’s listed 1.6 and 1 GPF. The top-mounted soft-close seat and seamless base add practical touches for quiet use and cleaning. The central limitation is that “rear outlet / wall drain” still needs to match the actual bathroom connection; certain configurations may call for additional parts, including a macerator pump. Product data does not specify a rough-in measurement, so buyers should confirm the connection details before treating this as a flexible swap-in option.
Pros:- 19-inch height can support easier sitting and standing
- Dual flush offers 1.28 and 0.8 GPF settings
- Described for rear outlet or wall-drain installations
- Soft-close seat and seamless base support quieter use and simpler cleaning
Cons:- No rough-in measurement is provided in the listed specifications
- Some plumbing layouts may require additional components such as a macerator pump
Best for: Buyers seeking a 19-inch bowl and dual-flush operation for a compatible rear or wall-drain setup
Not ideal for: Anyone who needs a confirmed rough-in measurement or a toilet for a conventional floor outlet
- Brand:SUPERFLO
- Bowl height:19 inches
- Drain type:Rear outlet / wall drain
- Trap type:P-trap
- Flush type:Dual flush
- Full flush volume:1.28 GPF
- Half flush volume:0.8 GPF
- Seat:Top-mounted, soft-close
Our verdict“Choose this SUPERFLO for its tall bowl and lower-volume dual flush if the wall connection is confirmed compatible.”
Swiss Madison Calice Two-Piece Elongated Rear Outlet Toilet, Dual Flush, Matte Black
The Calice stands apart from the taller white toilets here through its matte black ceramic finish and elongated standard-height bowl. That makes it a design-led choice for a bathroom where a 19-inch seat, like the Simple Project, would be too high or visually out of place. Its rear outlet is intended for installations without a floor flange, and the 0.8/1.6 GPF dual flush gives buyers two flush volumes. The included soft-close, quick-release Slymm seat makes removal for cleaning easier. Ceramic construction is listed as scratch resistant, but at 95 pounds this toilet is a substantial installation job, especially for one person. Its 12-inch rough-in and rear outlet also narrow the fit; confirm the wall connection before choosing it as a replacement.
Pros:- Matte black ceramic finish provides a distinct design option
- Elongated bowl with dual-flush 0.8/1.6 GPF operation
- Quick-release soft-close seat simplifies seat removal for cleaning
- Includes wax ring, bolts, and hardware
Cons:- At 95 pounds, handling and installation may require help
- Rear outlet and 12-inch rough-in limit plumbing compatibility
- Standard-height bowl is less suited to buyers seeking a tall seat
Best for: Design-conscious renovators who want a matte black elongated toilet at standard height and have a compatible 12-inch rear outlet
Not ideal for: Buyers seeking a lightweight, solo-friendly install or an elevated bowl for mobility support
- Brand:Swiss Madison
- Model:SM-2T120MB
- Color:Matte black
- Material:Ceramic
- Shape:Elongated
- Flush type:Dual flush, 0.8/1.6 GPF
- Outlet type:Rear outlet
- Rough-in:12 inches
- Weight:95 pounds
Our verdict“Choose the Calice when matte black styling and an elongated standard-height bowl matter more than easier installation or added seat height.”
Simple Project 19-Inch Tall Rear-Discharge Toilet
Among these five, this Simple Project is the only one with a listed outlet center height of 7.5 inches from the ground, making that measurement its clearest reason to shortlist it. Its 19-inch bowl is as tall as the SUPERFLO B0CN9BLH3W, but the Simple Project lists a higher full- and half-flush volume: 1.6 and 1 GPF versus the SUPERFLO’s 1.28 and 0.8 GPF. That may suit a buyer whose priority is matching the documented outlet dimension rather than minimizing water use. It includes a soft-close seat and curved pipe, but the listed shape is round, unlike the Maceratingflo’s elongated bowl. The tall seat may not suit every household, and the rear outlet makes measurement essential; installation components do not resolve a mismatch in outlet position.
Pros:- Lists a specific 7.5-inch outlet center height
- 19-inch bowl may ease sitting and standing for some users
- Dual flush provides full and reduced-volume settings
- Includes a soft-close seat and curved pipe
Cons:- Flush volumes of 1.6 and 1 GPF are higher than the SUPERFLO B0CN9BLH3W
- Rear outlet dimensions must match the existing plumbing
- 19-inch height may not fit all users
Best for: Homeowners replacing a rear-discharge toilet whose measured outlet center is 7.5 inches above the floor
Not ideal for: Buyers prioritizing lower flush volumes, an elongated bowl, or a seat height suited to every household member
- Brand:Simple Project
- Model:HT-120-2
- Bowl height:19 inches
- Outlet type:Rear discharge
- Outlet center height:7.5 inches from the ground
- Full flush volume:1.6 GPF
- Half flush volume:1 GPF
- Seat:Soft-close
- Included components:Curved pipe, seat, water parts, tank, round bowl
Our verdict“Shortlist this Simple Project if its 7.5-inch outlet center matches your plumbing and its taller, round bowl suits your household.”
MaceratingFlo Rear Discharge Two-Piece Toilet, 18-Inch Comfort Height, Elongated Bowl, 1.28 GPF, Skirted Design
The MaceratingFlo pairs a skirted ceramic exterior with an 18-inch comfort-height bowl, making it a practical choice for buyers who want simpler wipe-downs without giving up an elongated seat. Its 1.28 GPF rimless flush uses less water per flush than a conventional higher-volume model, while the included P-trap and 7-inch rough-in give installers specific connection details to check before purchase. Compared with the Lift Assure kit, this option lists extension pipes and mounting hardware, but the Lift Assure adds a dual-flush system and soft-close seat. The tradeoff is a fixed rear-outlet setup: it needs compatible wall plumbing, and the extension pipes may need adapting. I’d choose it when easy cleaning matters more than dual-flush flexibility.
Pros:- Skirted high-gloss ceramic design gives fewer hard-to-reach exterior contours to clean
- 18-inch height and elongated bowl offer a more accessible, roomy seating position
- Rimless 1.28 GPF flush limits water use
- Includes rigid and flexible extension pipes, mounting kits, and a two-year limited warranty
Cons:- Requires compatible rear-outlet plumbing and a 7-inch rough-in
- Included extension pipes may need adapting to the existing connection
- Single listed flush rate offers less water-use choice than the Lift Assure dual-flush kit
Best for: Homeowners renovating a bathroom with compatible rear-outlet plumbing who want an easy-clean skirted toilet and comfort-height seating
Not ideal for: Buyers without a rear-outlet connection or anyone seeking a dual-flush option or a listed soft-close seat
- Type:Two-piece rear discharge toilet
- Outlet:Rear P-trap
- Rough-in:7 inches
- Height:18 inches
- Bowl:18.5-inch elongated
- Flush rate:1.28 GPF, rimless
- Material:High-gloss ceramic
- Warranty:Two-year limited
Our verdict“Choose this MaceratingFlo when compatible rear plumbing and easy cleaning are priorities, and skip it if dual-flush control is a must.”
Lift Assure 2-Piece Rear Outlet P-Trap Toilet Kit, White Ceramic, Elongated Bowl
The Lift Assure stands out for combining an 18-inch ADA-compliant bowl height with a dual-flush system and soft-close seat. That makes it a stronger fit for households balancing easier seating with a choice of flush volumes, while the rear outlet can suit layouts where a floor drain is impractical. Compared with the MaceratingFlo skirted model, it offers more control over water use and a quieter seat, though the MaceratingFlo specifies its 1.28 GPF rate and includes two extension pipes. Basement buyers should pay close attention to the pump limitation: the macerator pump is not included, so this kit alone may not support a basement installation. The listing also gives outlet diameters but no rough-in measurement, which leaves a key compatibility check for the buyer.
Pros:- 18-inch bowl height is listed as ADA compliant
- Dual-flush system gives users a choice of flush
- Soft-close plastic seat reduces slamming noise
- Rear outlet supports bathroom layouts where floor plumbing is unsuitable
Cons:- Macerator pump is not included for basement applications
- No rough-in measurement is provided in the supplied specifications
- Extension pipes and other installation components are not listed among the included items
Best for: Buyers with compatible rear plumbing who want an 18-inch accessible bowl, soft-close seat, and dual-flush choice
Not ideal for: Basement renovators who need a complete macerating setup or buyers who need a clearly specified rough-in before ordering
- Type:Two-piece rear outlet P-trap toilet kit
- Material:Ceramic
- Color:White
- Bowl shape:Elongated
- Bowl height:18 inches
- Outlet diameter:3 inches inside; 3 3/4 inches outside
- Flush type:Dual flush
- Seat:Plastic, soft-close
Our verdict“Pick the Lift Assure for accessible seating and dual-flush control when your rear plumbing is compatible and any needed pump is handled separately.”
Simple Project Rear Discharge Toilet with 19 Inch ADA Tall Bowl
With a 19-inch bowl, this Simple Project is the lineup’s clearest pick for buyers who want extra-tall seating. Its dual flush is specified at 1.28 GPF for a full flush and 0.8 GPF for a half flush, giving more detail than the Lift Assure listing, which names dual flush without stating the volumes. A soft-close seat and P-trap add useful everyday and installation details, and the product description says it can connect to rear or wall drains. Still, that flexibility does not remove the need to confirm the actual outlet location and connection fit. Compared with the 18-inch MaceratingFlo, this model sits higher and gives flush-volume choices, but its description flags that some non-standard drain setups may need a macerator pump. I’d favor it for height over installation simplicity.
Pros:- 19-inch bowl height can make sitting down and standing up easier
- Dual flush is specified at 1.28 GPF full and 0.8 GPF half
- Soft-close seat reduces noise from the lid and seat
- Includes an extension pipe and installation accessories
Cons:- Some non-standard drain applications may require a macerator pump
- Drain fit still needs checking despite the stated rear or wall-drain compatibility
- 19-inch height may not suit users who prefer a lower seat
Best for: Seniors and people with mobility challenges who want a 19-inch seat height and a specified low-volume half flush
Not ideal for: Buyers with standard floor-drain plumbing, limited clearance, or a need for a confirmed pump-free installation
- Model:HT-120
- Bowl height:19 inches
- Flush type:Dual flush
- Full flush volume:1.28 GPF
- Half flush volume:0.8 GPF
- Drain type:Rear discharge / wall drain
- Trap design:P-trap
- Seat:Slow-close / soft-close
Our verdict“Choose this Simple Project model when extra-tall seating and defined dual-flush volumes matter more than a straightforward fit with every drain layout.”
Simple Project 19-Inch Rear Outlet Toilet with Tank and Soft-Close Seat
This Simple Project model suits buyers whose existing drain matches its stated 7.5-inch rear drain center and who want a 19-inch bowl with a soft-close seat. It includes the tank and extension tubes, so the package covers several core installation parts. Compared with the other 19-inch Simple Project model, HT-120, this listing gives a specific drain-center height but does not provide separate full- and half-flush figures. Its flush volume is also inconsistent: the description says 1/1.28 GPF, while an item highlight says 1/1.6 GPF. I would verify the actual flush specification with the seller before buying. That uncertainty makes it a narrower choice than the HT-120, but the drain-center measurement can help buyers screen for fit early.
Pros:- 19-inch height offers a tall seating position
- Specified 7.5-inch rear drain center helps buyers check plumbing alignment
- Dual-flush design supports different flush needs
- Includes tank, soft-close seat, and extension tubes
Cons:- Listing gives conflicting flush volumes: 1/1.28 GPF and 1/1.6 GPF
- Requires a rear drain center 7.5 inches above the floor
- No separate full- and half-flush volumes are specified
Best for: Renovators who have measured a rear drain center at 7.5 inches and want a tall bowl with included tank and extension tubes
Not ideal for: Buyers whose drain center differs from 7.5 inches or who need a confirmed flush volume before choosing
- Model:HT-120-2
- Toilet height:19 inches
- Rear drain center height:7.5 inches from floor
- Flush type:Dual flush
- Flush volume:Description: 1/1.28 GPF; item highlight: 1/1.6 GPF
- Trap design:P-trap
- Seat:Soft-close
- Included components:Bowl, tank, extension tubes, soft-close seat
Our verdict“Consider this model only if your measured rear drain center matches 7.5 inches and you can confirm its flush volumes before purchase.”
How We Picked
I ranked these toilets by how well their stated design features answer the practical questions specific to a floor-mount rear-discharge installation: outlet compatibility, bowl height, bowl shape, flushing options, and useful included parts. I gave the strongest position to models with a clear combination of everyday comfort and decision-useful features, while treating labels such as ADA or comfort height as cues to verify dimensions rather than substitutes for them.
Distinctive options rank lower when they serve a narrower need or leave more fit questions for the buyer. A compact bowl can help where space is limited, tall bowls can suit people who prefer a higher seat, and skirted or matte-black designs address appearance and cleaning preferences. Product details supplied here do not establish that any toilet fits every rear outlet, so buyers should confirm the rough-in, outlet height, trap connection, and included seat or hardware before choosing.
| floor mount rear discharge toilet | Seat | Brand |
|---|---|---|
| Compact 16.5" Two-Piece Rear O | Soft-close | — |
| MaceratingFlo Rear Outlet Two- | — | MaceratingFlo |
| Vomlor 18" ADA Elongated Rear | — | — |
| MaceratingFlo Rear Discharge T | — | MaceratingFlo |
| ARES 18-Inch Comfort-Height Re | — | MaceratingFlo |
| SUPERFLO Rear Outlet Tall Toil | Soft-close | SUPERFLO |
| Maceratingflo Skirted Rear Out | Elongated, soft-close | Maceratingflo |
| SUPERFLO Rear Outlet Toilet wi | Top-mounted, soft-close | SUPERFLO |
| Swiss Madison Calice Two-Piece | — | Swiss Madison |
| Simple Project 19-Inch Tall Re | Soft-close | Simple Project |
| MaceratingFlo Rear Discharge T | — | — |
| Lift Assure 2-Piece Rear Outle | Plastic, soft-close | — |
| Simple Project Rear Discharge | Slow-close / soft-close | — |
| Simple Project 19-Inch Rear Ou | Soft-close | — |
Factors to Consider When Choosing Floor Mount Rear Discharge Toilet
Choosing a rear-discharge toilet starts with the bathroom’s plumbing layout, then moves to comfort and upkeep. I would verify the measurements before comparing finishes or flush controls, since even a well-matched bowl height cannot compensate for an outlet that misses the wall connection.
Measure the Wall Outlet and Rough-In
Rear-outlet toilets connect to a wall drain, and the drain centerline must align with the toilet’s outlet. Measure from the finished floor and finished wall, not from unfinished surfaces that will later shift the reference point. Check the manufacturer’s rough-in drawing for the outlet center, connection type, and required clearance behind the bowl. A listed 7-inch rough-in, for example, is a specific fit detail rather than a universal rear-discharge standard. Buyers commonly focus on the bowl dimensions and overlook the wall connection, which can turn a planned replacement into plumbing work. If the current toilet is in place, record its outlet height and connection before removing it.
Choose Bowl Height for the People Using It
Comfort-height and tall-bowl models can make sitting down and standing up easier for many adults, but a higher seat is not automatically more comfortable for everyone. Shorter users and children may find a 19-inch bowl less natural, especially if their feet do not rest comfortably on the floor. Compare the stated bowl height with the height of your current toilet, and check whether the measurement includes the seat. Labels such as ADA height do not tell you how the model will feel in your household or guarantee that a particular installation meets every accessibility need. When several people share the bathroom, think about their range of heights and mobility rather than choosing based on one person alone.
Account for the Full Bathroom Footprint
Measure the available space from the back wall to the front of the bowl, as well as the room beside the toilet and the clearance to the door. Elongated bowls generally extend farther forward than round bowls, which can improve seating comfort while tightening a narrow layout. A compact 16.5-inch bowl may fit a smaller room better, but confirm what that measurement describes and compare the full product drawing. Also check the tank depth and the position of nearby vanities, grab bars, and supply lines. A toilet that fits the plumbing can still make a bathroom awkward if the lid, door, or user cannot move freely.
Compare Flush Controls With Household Use
Dual-flush controls offer separate flush choices, which can suit households that want to select a lower or fuller flush based on use. A single 1.28 GPF specification is simpler to compare across models, but the number alone does not describe bowl-clearing performance or how well the toilet handles your household’s typical use. Check the manufacturer’s documentation for flush operation, replacement parts, and any stated performance details. Think about who will use the controls: a two-button arrangement can be less intuitive for some children or guests than a single lever. Choose the control style your household will use consistently, rather than treating an extra setting as a benefit by itself.
Check What Installation Requires
Rear-discharge installations may rely on a specific gasket, adapter, P-trap arrangement, or connection kit, so confirm which pieces are included before scheduling work. A product described as a P-trap kit may address a different setup than a standard toilet package. Review the installation instructions and compare them with the existing drain, water supply, and wall access. If the connection needs to move, the work can involve opening the wall or changing plumbing, which affects both effort and project scope. For a first replacement, have a plumber review the dimensions or instructions before ordering if the existing outlet configuration is unclear. This check can prevent buying a toilet that appears similar but connects differently.
Balance Exterior Design With Cleaning Access
A skirted base hides more of the trapway and can reduce the exposed contours where dust collects, while a conventional two-piece shape may leave more surfaces to clean. The skirt does not remove the need to clean the floor around the toilet or check access to mounting hardware. Matte-black finishes create a stronger visual statement than white ceramic, but they may make water marks or dust more visible depending on lighting and cleaning habits. Look at the base shape and the space between the toilet and wall, not just the finish or product photos. Paying for a design feature makes sense when it solves a real cleaning or style preference in your bathroom. Keep plumbing fit and service access ahead of appearance.
Frequently Asked Questions
How can I tell whether a rear-discharge toilet will fit my existing wall drain?
Measure the drain centerline from the finished floor and finished wall, then compare those measurements with the model’s installation drawing. Confirm the outlet direction, rough-in, and connection type, since toilets that share the rear-discharge label may use different dimensions or fittings. If the old toilet is still installed, photograph the connection and note any adapter or exposed pipe dimensions. Ask the manufacturer or a plumber to check the match when the documentation is unclear. Do this before ordering, because changing a wall outlet can add substantial work.
Is an 18- or 19-inch bowl a good choice for every household?
A taller bowl can make transfers easier for many adults, particularly those who find a low seat uncomfortable. It may feel too high for shorter users, children, or anyone who prefers a lower seat with their feet planted. Compare the actual bowl height and determine whether the published figure includes the seat. If the toilet serves people with different needs, consider who uses it most and whether a raised seat or support is part of the accessibility plan. The ADA label is useful context, but the dimensions and individual fit still matter.
Should I choose a dual-flush model or a 1.28 GPF model?
Dual flush gives users two flush choices, which can help households that want different settings for different uses. A 1.28 GPF model offers a single stated consumption figure and a simpler control. Neither description alone confirms how well a toilet clears the bowl, so look for manufacturer performance information and follow installation requirements. Also consider whether everyone in the home will understand and use a two-button control correctly. Your choice should reflect household habits as well as the flush specifications.
Does a skirted rear-outlet toilet make installation or repairs harder?
A skirted profile can make the outside easier to wipe, but the base shape may affect access to mounting points and the rear connection. Installation difficulty depends on the model’s instructions, the wall outlet position, and whether its fittings match the existing plumbing. Before buying, check how the toilet is secured and whether the connection can be reached for service. A clean exterior is useful only if the installed toilet can still be maintained without unnecessary disassembly. Ask for the installation drawing if product photos do not show the connection area clearly.
When should I hire a plumber to replace a floor-mount rear-discharge toilet?
Professional installation is a sensible choice if you cannot identify the drain centerline, the current connection uses an unfamiliar adapter, or the wall outlet appears damaged. It can also help when a new toilet’s rough-in differs from the existing setup or the manufacturer calls for a special trap or kit. A straightforward replacement with matching dimensions may be within reach for someone familiar with toilet installation, but rear connections can be less forgiving when alignment is off. Review the instructions before removing the old unit and confirm whether the needed seals and hardware are supplied. A short fit check before purchase can clarify whether this is a simple swap or plumbing work.
Conclusion
For the best overall balance in this lineup, I recommend the MaceratingFlo 18-Inch ADA Comfort Height Dual-Flush model, provided its outlet dimensions match your wall drain. The best value in practical features is the Compact 16.5-inch Two-Piece model for buyers prioritizing a smaller footprint, though its lower height will not suit everyone. For a distinctive finish, the best premium-style choice is the Swiss Madison Calice in matte black; confirm that its design and connection details suit the room before choosing it. The best starting point for first-time buyers is a conventional two-piece option with a clearly documented rough-in and included parts, such as the MaceratingFlo comfort-height model, after checking the installation drawing. For users seeking a taller seat, compare the Vomlor, SUPERFLO, and Simple Project 19-inch options by actual height and flush controls; for a skirted look, focus on the MaceratingFlo skirted models. In every case, let measured outlet compatibility make the final call.
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