A strong waterless toilet for an RV should fit the available floor space, suit your waste-disposal routine, and work with your power setup. The modiwell R1808 Fixed RV Dry Flush Toilet leads this roundup with one-touch sealing, an adjustable bag length, and a top that rotates 90 degrees left or right. The options here include dry-flush models that seal waste in bags, urine-diverting composting toilets, and a larger composting unit with powered features.
Those approaches differ in ventilation, maintenance, and the supplies they require, so the right choice depends on how you travel and where you can store or dispose of waste. Compare listed dimensions and included components before choosing: some products provide chargers and bags, while others require venting or separate handling of liquids and solids.
The modiwell R1808 Fixed RV Dry Flush Toilet is the best overall choice in this set for RV use. It measures 17 x 14 x 18 inches, weighs 21 pounds, and seals waste into refill bags with one-touch operation. Its top can rotate 90 degrees left or right to help position it in a tight layout, and adjustable bag-length modes let users select among three settings.
Choose it if you want a compact dry-flush format without a water hookup.
Our Top Picks
Best OverallIts 17 x 14 x 18-inch dimensions suit compact RV spaces, while one-touch sealing, three bag-length modes, and 90-degree rotation add flexibility.
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Best Swivel TopThe 17 x 14 x 18-inch dry-flush unit rotates through a 180-degree positioning range and includes a charger, refill bags, coagulant, and urine tank.
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Best Capacity DetailThe 20 x 16 x 18-inch model specifies 15 solids flushes per cartridge, or 28 with included pee powder, and comes with two cartridges.
View on Amazon- Best Battery Detail LOO SEAL LE-310
- Best Power Options Wrappon Sunny
Compare the waterless toilet options for your RV
| # | Product | Dimensions | Weight | Material | Buy |
|---|---|---|---|---|---|
| 1 | 1. modiwell R1808 FixedBest Overall | 17 x 14 x 18 in | 21 lb | Polypropylene, Stainless Steel, Silicone | View on Amazon |
| 2 | 2. LOO SEAL R1808Best Swivel Top | 17"D x 14"W x 18"H | 21 lb | Acrylonitrile Butadiene Styrene (ABS) | View on Amazon |
| 3 | 3. Laveo Dry FlushBest Capacity Detail | 20"D x 16"W x 18"H | 27 lb | Low Density Polyethylene (LDPE) | View on Amazon |
| 4 | 4. LOO SEAL LE-310Best Battery Detail | 19"D x 12"W x 18"H | 16.5 lb | Acrylonitrile Butadiene Styrene (ABS) | View on Amazon |
| 5 | 5. Wrappon SunnyBest Power Options | 18.5"D x 14.17"W x 16.6"H | — | Plastic | View on Amazon |
| 6 | 6. modiwell LE-310Compact van-life dry flush | 17"D x 17"W x 11"H | 17 lb | Engineering Plastics, Stainless Steel | View on Amazon |
| 7 | 7. OGO Origin CompactTight-build electric composting | — | 28 lb | Polypropylene High Density Polyethylene | View on Amazon |
| 8 | 8. Sun-Mar GTGLow-maintenance composting setup | 24"D x 15.75"W x 19.8"H | 25 lb | Plastic | View on Amazon |
| 9 | 9. Thinktank Waterless ToiletVent-connected urine diversion | 23.2"D x 18"W x 19"H | 30 lb | Plastic | View on Amazon |
| 10 | 10. LECARDIO Composting ToiletElectric-assisted composting system | 32"D x 16"W x 20"H | — | Acrylonitrile Butadiene Styrene (ABS) | View on Amazon |
Detailed Reviews: Best Waterless Toilet For RV

#1 · Best Overall
1. modiwell R1808 Fixed
- Dimensions: 17 x 14 x 18 in
- Weight: 21 lb
- Material: Polypropylene, Stainless Steel, Silicone
Best for: Swivel-fit RV installation.
Why it ranks #1: Its 17 x 14 x 18-inch dimensions suit compact RV spaces, while one-touch sealing, three bag-length modes, and 90-degree rotation add flexibility.
A 90-degree left-or-right rotating toilet top lets the modiwell R1808 adapt to awkward RV layouts, while one-touch sealing wraps and heat-seals waste after the lid and lower door close. That pairing suits owners who want a waterless setup with adjustable orientation and a button-led disposal routine.
The 17-by-14-by-18-inch body has a compact footprint, and its rotating top can be adjusted to suit available space. For disposal, close the lid and lower sliding door, then press the button to activate automatic wrapping and heat sealing. Adjustable bag length offers three operating modes for small or large waste loads. The toilet is waterproof when closed, and supplied refill bags are intended to help manage odors; coagulant is also included.
- Top rotates 90 degrees left or right for layout adjustment
- Button activates automatic bag wrapping and heat sealing
- Three refill-bag length modes accommodate different loads
- Waterproof when closed; refill bags help tackle odors
- Requires closing both the lid and lower sliding door before pressing the button.
Skip it if you need a toilet with a stated number of uses per charge; the LOO SEAL LE-310 lists up to 100 flushes.
This suits RV owners who need a waterless toilet with a rotating top and automatic bag sealing in a compact footprint. Check that its 17-inch height and requirement to close both barriers before operation suit your installation and routine.
Full product details
| Brand | modiwell |
|---|---|
| Color | White |
| Included Components | Coagulant, Dry Flush Toilet, Refill Bags |
| Item Weight | 21 pounds |
| Item model number | R1808 |
| Manufacturer | Huiyuandong (Xiamen) Health Technology Co., Ltd. |
| Material | Polypropylene, Stainless Steel, Silicone |
| Dimensions | 17 x 14 x 18 inches |
Listed on Amazon as: R1808 Fixed RV Dry Flush Toilet, Waterless Rechargeable, White
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#2 · Best Swivel Top
2. LOO SEAL R1808
- Dimensions: 17"D x 14"W x 18"H
- Weight: 21 lb
- Material: Acrylonitrile Butadiene Styrene (ABS)
Best for: Corner-layout RV toilet.
Why it ranks #2: The 17 x 14 x 18-inch dry-flush unit rotates through a 180-degree positioning range and includes a charger, refill bags, coagulant, and urine tank.
The LOO SEAL R1808’s upper body swivels through a 180-degree positioning range, allowing its seat to face a more useful direction in a corner or narrow RV aisle. Its waterless system needs no water hookup or black tank, making the installation option relevant to off-grid layouts.
The 17-by-14-by-18-inch footprint helps conserve floor space, while the swivel top provides a way to orient the seat without moving the toilet base. Automatic sealing is activated by pressing and holding, and the included refill bags and coagulant support its waste-handling routine. A full charge takes approximately 2.5 hours. The unit is waterproof when fully closed, helping protect its internal components from moisture in that state.
- Top turns left or right through a 180-degree positioning range
- Compact 17-by-14-inch footprint
- No water hookup or black tank required
- Includes charger, coagulant, refill bags, and urine tank
- Full charging takes approximately 2.5 hours.
Skip it if you need power from AC or 12V DC; the Wrappon Sunny lists both input options and includes both cables.
Consider this for an RV owner fitting a waterless toilet into a corner or tight aisle, especially where a black-tank connection is unwanted. Allow for the stated charging time and keep the unit fully closed for its waterproof protection.
Full product details
| Brand | LOO SEAL |
|---|---|
| Color | White |
| Included Components | Charger, Coagulant, Refill bags, Urine Tank |
| Dimensions | 17"D x 14"W x 18"H |
| Item Weight | 21 pounds |
| Manufacturer | Huiyuandong (Xiamen) Health Technology Co., Ltd. |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model Number | R1808 |
Listed on Amazon as: R1808 Waterless Self-Contained Dry Flush RV Toilet with Swivel Top
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#3 · Best Capacity Detail
3. Laveo Dry Flush
- Dimensions: 20"D x 16"W x 18"H
- Weight: 27 lb
- Material: Low Density Polyethylene (LDPE)
Best for: Cartridge-based RV sanitation.
Why it ranks #3: The 20 x 16 x 18-inch model specifies 15 solids flushes per cartridge, or 28 with included pee powder, and comes with two cartridges.
Laveo’s included battery, charger, two cartridges, and pee powder let RV owners start with the main dry-flush supplies on hand. Its self-contained, waterless disposal routine avoids bulking material and chemicals, while a full cartridge can be removed as an airtight bag rather than handled as loose waste.
Each cartridge is specified for 15 solid flushes, or 28 flushes when using the included pee powder, which is said to extend cartridge life by 40%. That gives buyers a clear way to plan cartridge changes around use. The 20-by-16-by-18-inch unit weighs 27 pounds and uses an LDPE body with a wood seat. When full, remove and discard the cartridge’s black airtight bag; no complicated setup is required.
- Includes battery, charger, cable, two cartridges, and pee powder
- Cartridge rated for 15 solid flushes or 28 with pee powder
- No bulking material or chemicals required
- Full cartridge is removed as an airtight bag
- Supplied battery is not included, despite the listing’s included-component description.
Skip it if you want a specified high flush count on one charge; the LOO SEAL LE-310 lists up to 100 flushes per charge.
Choose this for an RV user who values cartridge-based disposal and wants pee powder and two cartridges supplied. Its 27-pound weight and 20-inch depth matter in compact interiors, and battery status should be resolved before relying on it.
Full product details
| Brand | Laveo |
|---|---|
| Color | White |
| Included Components | (1) Bottle of Pee Powder (Now 60% more – Free!), (2) Cartridges, Battery, Battery Charger, Product Manual |
| Dimensions | 20"D x 16"W x 18"H |
| Item Weight | 27 pounds |
| Manufacturer | Waterless Toilets, Inc. Dry-Flush |
| Part Number | DF1045A |
| Manufacturer Warranty Description | One year limited warranty on parts and electronics. Battery not included. |
| Material | Low Density Polyethylene (LDPE) |
| Model Number | DF1045A |
| Seat Material | Wood |
| Additional Information | Important Information Bulb Voltage 12 volts_of_direct_current Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Dry Flush Toilet – Waterless, Portable, Self Contained and Easier to Use than an Incinerating or Composting Toilet. Great for Tiny Homes, Vans, Boats, Camping, RVs and Off Grid, LDPE, White
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#4 · Best Battery Detail
4. LOO SEAL LE-310
- Dimensions: 19"D x 12"W x 18"H
- Weight: 16.5 lb
- Material: Acrylonitrile Butadiene Styrene (ABS)
Best for: Weekend battery-powered RV use.
Why it ranks #4: Its listed 57.72 Wh built-in battery is rated for up to 100 flushes per charge, and its 16.5-pound weight suits portable RV use.
The LOO SEAL LE-310’s built-in 57.72 Wh battery is specified for up to 100 flushes per charge, giving RV travelers a clear operating range for trips away from hookups. Its automatic thermal sealing turns a button press into a contained-bag disposal routine.
At 19 by 12 by 18 inches and 16.5 pounds, the unit combines a relatively narrow listed width with a portable weight for RV storage and setup. Its rechargeable battery is integrated and non-removable, so charging is part of trip preparation rather than a battery swap. The included charger, coagulant, and refill bags support operation, and the automatic sealing system means users discard the sealed refill bag after pressing Start.
- Built-in battery specified for up to 100 flushes per charge
- 16.5-pound weight supports portability
- 12-inch listed width fits narrower storage areas
- Includes charger, coagulant, and refill bags
- The built-in battery is non-removable.
Skip it if you need an AC option as well as 12V DC; the Wrappon Sunny lists both power sources and includes both cables.
This suits RV owners seeking a rechargeable, self-contained toilet for weekend use, with a stated maximum of 100 flushes per charge. Because the battery cannot be removed, plan charging around access to its charger and power source.
Full product details
| Brand | LOO SEAL |
|---|---|
| Color | Gray |
| Included Components | Charger, Coagulant, Refill bags |
| Dimensions | 19"D x 12"W x 18"H |
| Item Weight | 16.5 pounds |
| Manufacturer | Huiyuandong (Xiamen) Health Technology Co., Ltd. |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model Number | LE-310 |
Listed on Amazon as: LE-310 Gray Waterless Foldable Dry Flush Portable Toilet for RVs
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#5 · Best Power Options
5. Wrappon Sunny
- Dimensions: 18.5"D x 14.17"W x 16.6"H
- Material: Plastic
Best for: Dual-power portable toilet.
Why it ranks #5: This 18.5 x 14.17 x 16.6-inch dry-flush model supports AC or 12V DC and includes two film rolls, coagulants, and both cables.
The Wrappon Sunny accepts AC or 12V DC power, giving RV owners two listed ways to run its film-sealing disposal system. It operates without water, chemicals, or venting, which can simplify placement in a van, boat, or compact RV where plumbing and exhaust routing are difficult.
Its 18.5-by-14.17-by-16.6-inch dimensions provide a compact floor-mounted profile, and the included AC and DC cables support different power arrangements. Advanced film sealing is intended to prevent leaks and smells, while touch-free disposal and durable film bags shape the maintenance routine. Two film rolls, two coagulants, and a carry bag are supplied, so the package supports initial use and transport without adding a vent connection.
- Runs on AC or 12V DC
- No water, chemicals, or venting required
- Film-sealing system is intended to prevent leaks and smells
- Includes two film rolls, two coagulants, cables, and carry bag
- Requires an AC or 12V DC power source to operate.
Skip it if you want a listed battery-powered flush count independent of an AC or DC connection; the LOO SEAL LE-310 specifies up to 100 per charge.
This suits RV and van owners who can provide AC or 12V DC and want film-sealed disposal without plumbing or venting. Its 18.5-inch depth still needs floor space, and operation depends on access to one of its listed power sources.
Full product details
| Brand | ラップポン |
|---|---|
| Color | White / Gray |
| Included Components | 2 film rolls, two coagulants, carry bag, ac and dc cable |
| Installation Type | Floor Mounted |
| Dimensions | 18.5"D x 14.17"W x 16.6"H |
| Manufacturer | Nihon Saftey |
| Material | Plastic |
| Model Number | WRASUNNY |
| Seat Material | Plastic |
Listed on Amazon as: Wrappon Sunny Dry Flush Toilet– Waterless, Odorless, Self-Contained | Portable Toilet for RVs, Van, Boat, Tiny House, Off-Grid | Easier to Use Than Composting or Incinerator Toilets
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#6
6. modiwell LE-310
- Dimensions: 17"D x 17"W x 11"H
- Weight: 17 lb
- Material: Engineering Plastics, Stainless Steel
Best for: Compact van-life dry flush.
Why it ranks #6: The 17-pound compact dry-flush unit measures 17 x 17 x 11 inches and includes coagulant, bags, and a charging cable for travel.
At 11 inches tall, the modiwell LE-310 has a lower profile than many self-contained toilets, helping it suit van-life spaces where vertical clearance matters. Its one-click thermal sealing handles waste in a bag, so routine disposal does not require cleaning up the waste itself.
The 17-by-17-inch footprint and 17-pound weight make this a portable option for off-grid travel, while the included charging cable supports charging between uses. Press Start to automatically seal the waste bag; included coagulant and garbage bags provide supplies for that workflow. For storage, the rear switch should be turned off after each use to save power, and the guidance calls for charging to 50% every three months during long storage.
- 11-inch height suits spaces with limited vertical clearance
- 17-pound weight supports portability
- Start button triggers automatic thermal bag sealing
- Includes coagulant, garbage bags, and charging cable
- Long-term storage requires charging to 50% every three months to prevent over-discharge.
Skip it if you want a published flush-count range per charge; the LOO SEAL LE-310 lists up to 100 flushes.
This fits van travelers seeking a low-profile, 17-pound waterless toilet with automatic bag sealing. Its storage guidance is a real consideration for seasonal vehicles: plan periodic charging and use the rear switch to shut it down after use.
Full product details
| Brand | modiwell |
|---|---|
| Color | Gray |
| Included Components | Dry Flush Toilet, Coagulant * 2, Garbage Bags * 2, Charging Cable |
| Dimensions | 17"D x 17"W x 11"H |
| Item Weight | 17 pounds |
| Manufacturer | modiwell |
| Material | Engineering Plastics, Stainless Steel |
| Model Number | Loo Seal Series – Gray |
| Seat Material | Polypropylene (PP) |
Listed on Amazon as: LE-310 Compact Dry Flush Toilet for Van Life and Off-Grid, Gray
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#7
7. OGO Origin Compact
- Weight: 28 lb
- Material: Polypropylene High Density Polyethylene
Best for: Tight-build electric composting.
Why it ranks #7: Its stated 15 x 16-inch footprint targets tight van and RV builds, with a 12V electric agitator and fan rather than a manual crank.
OGO’s Origin lists a 15-by-16-inch footprint, giving van, RV, and boat builders a compact composting option for tight bathroom layouts. A push-button 12V electric agitator mixes solids without a hand crank, while urine diversion separates liquids into a front bottle to keep solids dry.
The compact footprint can reduce the space needed in a small build, and the electric agitator avoids a manual cranking step after use. A quiet 12V fan vents the system, while the urine-diverting trap door sends liquids to the front bottle; together, those features support the listed odor-control approach. The included power cable, venting hose, and mounting screws point to a floor-mounted installation that needs both electrical power and a route for ventilation.
- 15-by-16-inch footprint for tight installations
- 12V push-button electric agitator avoids manual cranking
- Urine-diverting trap door sends liquids to a front bottle
- Includes power cable, venting hose, and mounting screws
- Requires a venting hose and 12V power for its listed installation and operation.
Skip it if you want waterless bag sealing without vent routing; the Wrappon Sunny requires no venting and includes AC and 12V DC cables.
Choose this for a tight RV or van build that can accommodate a 15-by-16-inch base, 12V power, and ventilation routing. Its electric agitation and urine diversion suit buyers seeking composting rather than sealed-bag disposal.
Full product details
| Brand | OGO |
|---|---|
| Color | White |
| Included Components | Mounting Screws, OGOTM Compost Toilet, Power Cable, Venting Hose |
| Installation Type | Floor Mounted |
| Item Weight | 28 pounds |
| Manufacturer | OGO |
| Part Number | ogo-wht-2101 |
| Material | Polypropylene High Density Polyethylene |
| Model Number | OGO White 2021 |
| Seat Material | Polypropylene (PP) |
| Additional Information | Important information Safety Information Always wear gloves and a mask when handling waste. Ensure proper ventilation. Do not ingest or come into contact with waste. Dispose of waste in accordance with local regulations. Keep the unit clean and dry to prevent mold growth. Do not use harsh chemicals for cleaning. |
Listed on Amazon as: Origin Compact Composting Toilet – 15in Footprint for Van, RV & Boat
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#8
8. Sun-Mar GTG
- Dimensions: 24"D x 15.75"W x 19.8"H
- Weight: 25 lb
- Material: Plastic
Best for: Low-maintenance composting setup.
Why it ranks #8: This self-contained urine-diverting compost toilet is listed for RVs and measures 24 x 15.75 x 19.8 inches, but needs more floor depth.
Sun-Mar’s GTG uses a liquid-and-solid separator, giving RV and cabin users a waterless composting-style option that keeps the waste streams distinct. Its listing emphasizes minimal maintenance and no frequent dumping, while setup is described as taking minutes rather than requiring a lengthy installation process.
The 24-by-15.75-by-19.8-inch body and 18-inch seat height help buyers assess whether it fits their bathroom layout and seating preference. Separating liquids from solids is the core workflow, and the supplied Compost Magic and hardware kit support setup. This differs from bag-sealing dry-flush toilets: the GTG is presented as a compost toilet, with low-maintenance operation and less frequent dumping as its intended practical advantages.
- Liquid-and-solid separator keeps waste streams distinct
- Setup is described as taking minutes
- Listing emphasizes minimal maintenance and no frequent dumping
- Includes Compost Magic and hardware kit
- At 24 inches deep, it needs more floor depth than a compact dry-flush unit.
Skip it if you need a bag-sealing dry-flush system rather than a separator compost toilet; the modiwell LE-310 automatically seals waste bags.
Choose the GTG for an RV or cabin user who wants a separator-based composting toilet and values less frequent dumping. Its 24-inch depth is the key layout boundary, so measure available floor space before settling on this footprint.
Full product details
| Brand | Sun-Mar |
|---|---|
| Color | White |
| Included Components | Compost Magic, Hardware kit |
| Dimensions | 24"D x 15.75"W x 19.8"H |
| Item Weight | 25 pounds |
| Manufacturer | Sun-Mar Corporation |
| Material | Plastic |
| Model Number | GTG-011 |
| Seat Material | Plastic |
Listed on Amazon as: GTG self-contained Urine Diverting Compost Toilet – Waterless, Low-Maintenance Toilet for Tiny Homes, Cabins, Boats, Barns, RVs and more…
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#9
9. Thinktank Waterless Toilet
- Dimensions: 23.2"D x 18"W x 19"H
- Weight: 30 lb
- Material: Plastic
Best for: Vent-connected urine diversion.
Why it ranks #9: Its separate air pipes and bagged waste suit waterless use, but the 23.2 x 18 x 19-inch dimensions are less convenient for compact RV layouts.
Thinktank separates air intake and exhaust through dedicated vent pipes, a configuration intended to draw ventilation from outside rather than pull conditioned cabin air. Its urine-diverting design is aimed especially at women, while a trap door hides solid waste from view during use.
The system’s bag-contained waste and lack of a bowl are presented as ways to simplify cleaning, while the included solid-waste container and ten waste bags support its disposal setup. Two 16-inch vent pipes and a wall adapter are supplied, so installation involves a vent connection rather than a fully self-contained dry-flush cartridge workflow. The 23.2-by-18-by-19-inch dimensions and 30-pound weight require planning for a fixed space and handling.
- Separate air intake and exhaust pipes
- Urine-diverting design is specified for women and allows men to stand
- Waste is contained in a bag without a bowl to clean
- Includes two 16-inch vent pipes, wall adapter, and ten waste bags
- Requires installation of vent pipes and a wall adapter.
Skip it if you cannot route vent pipes through your installation; the Wrappon Sunny requires no venting and operates on AC or 12V DC.
This is a fit for buyers prioritizing urine diversion, hidden solids, and outside-sourced ventilation in a fixed RV or cabin installation. Its 23.2-inch depth and vent-pipe routing make it less suited to layouts without installation space.
Full product details
| Brand | Generic |
|---|---|
| Color | White |
| Included Components | 2 – 16" vent pipes, wall adapter, solid waste container, 10 waste bags, installation manual |
| Dimensions | 23.2"D x 18"W x 19"H |
| Item Weight | 30 pounds |
| Manufacturer | Thinktank Manufacturing Ltd. |
| Part Number | Thinktank |
| Material | Plastic |
| Model Number | Thinktank |
| Seat Material | Plastic |
Listed on Amazon as: Thinktank Waterless Toilet White
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#10
10. LECARDIO Composting Toilet
- Dimensions: 32"D x 16"W x 20"H
- Material: Acrylonitrile Butadiene Styrene (ABS)
Best for: Electric-assisted composting system.
Why it ranks #10: Although designed for vans and boats, its 32 x 16 x 20-inch dimensions and powered mixing, heating, and exhaust features make it a less direct RV fit.
LECARDIO combines a urine separator, electric mixing, and an exhaust fan in a waterless composting toilet, giving buyers a system intended to process waste inside the unit. The fan vents outdoors during use, while the included compost starter and wood chips support its composting workflow.
The 32-by-16-by-20-inch dimensions call for substantial depth, so RV owners should account for the installation footprint before choosing it. Its automatic exhaust fan is described as venting odor outdoors during use, and electric mixing pairs with the microbial package to break down waste within the toilet. Wood chips and compost starter are included for setup. Unlike bag-sealing dry-flush models, this approach depends on its venting and in-unit composting process.
- Urine separation and electric mixing are listed features
- Automatic exhaust fan vents outdoors during use
- Microbial package is intended to break down waste in the unit
- Includes wood chips and compost starter
- Its 32-inch depth requires substantial installation floor space.
Skip it if you cannot accommodate a 32-inch-deep toilet or outdoor exhaust; the Wrappon Sunny needs no venting and is 18.5 inches deep.
This is for buyers seeking in-unit composting with electric mixing, urine separation, and outdoor exhaust in a van, boat, or tiny home. Its 32-inch depth and venting needs make installation space the main boundary for RV use.
Full product details
| Brand | LECARDIO |
|---|---|
| Color | White |
| Included Components | Composting Toilet, Wood Chips, Compost Starter |
| Dimensions | 32"D x 16"W x 20"H |
| Manufacturer | GreenCycleToilets |
| Part Number | XY-JY |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model Number | XY-JY |
| Seat Material | Acrylonitrile Butadiene Styrene (ABS) |
Listed on Amazon as: Composting Toilet, Waterless Toilets Suitable for Tiny Houses, Vans, Boats, with Heating Plate, Electric Mixing, Urine Separating and Exhaust Fan
View on AmazonDry-flush bags and composting are different disposal systems
Dry-flush and composting toilets handle waste differently, so the disposal routine can matter as much as the toilet’s footprint. Dry-flush models in this group seal waste in bags or film: the modiwell R1808 Fixed and LOO SEAL R1808 use refill bags, while the Wrappon Sunny includes film rolls. You will need to plan for replacement supplies and for permitted disposal of the sealed waste.
Composting models instead separate or mix waste, and some require additional setup: the OGO Origin Compact lists a venting hose, while the Sun-Mar GTG lists Compost Magic. The LECARDIO unit lists wood chips and compost starter, plus an exhaust fan.
Do not assume that a product described as waterless requires no installation, maintenance, or consumables. Check the included components and the disposal rules at your destinations before selecting a system, especially if you take long trips or have limited storage for bags and supplies.
Check the RV installation space, not just the toilet width
A listed footprint alone does not show whether a waterless toilet will fit your RV installation. The product dimensions vary substantially: the compact modiwell LE-310 is listed at 17 x 17 x 11 inches, while the LECARDIO measures 32 x 16 x 20 inches. Seat height, door swing, access to charging ports, and clearance to rotate a top are not fully described for every model.
The R1808 listings offer a useful positioning feature, with the LOO SEAL version specifying a 180-degree range, but you still need room around the unit to use that movement. Composting models may also need space for ventilation hardware; the OGO includes a venting hose, and Thinktank includes two 16-inch vent pipes.
Measure the intended floor area and surrounding clearance, then confirm installation and vent routing requirements with the product maker before buying.
How to Choose a Waterless RV Toilet
Footprint and positioning
Look for dimensions that leave enough room for the seat, entry path, and any required installation clearance. Listed sizes range from the modiwell LE-310 at 17 x 17 x 11 inches to the LECARDIO at 32 x 16 x 20 inches; the OGO Origin Compact states a 15 x 16-inch footprint. The R1808 models are around 17 x 14 x 18 inches, and their tops rotate to help with positioning.
A tight van or compact RV bathroom may favor the smaller listed footprint, while a larger cabin can accommodate a deeper unit. Measure the actual installation space, including access around the toilet, rather than relying on one dimension or a product’s compact label.
Power and trip length
Check the power source and any stated capacity against your travel routine. The Wrappon Sunny supports AC or 12V DC, while the LOO SEAL LE-310 lists a built-in 57.72 Wh battery rated for up to 100 flushes per charge. The Laveo lists 15 solids flushes per cartridge, or 28 with pee powder; that is a cartridge figure, not a battery rating.
Other products provide less specific runtime information in the supplied details. For weekend travel away from hookups, prioritize a clearly stated battery capacity and plan for recharging; for a powered RV setup, a model with a listed 12V option may suit you.
Verify charging and cartridge needs for your expected trip length.
Waste handling and included supplies
Choose between sealed-bag disposal and a urine-diverting or composting system, then check what arrives in the box. The modiwell R1808 Fixed includes refill bags and coagulant, while the Laveo includes two cartridges and pee powder. The Wrappon Sunny includes two film rolls and coagulants.
Composting choices have different listed supplies: Sun-Mar includes Compost Magic, and LECARDIO includes wood chips and compost starter. Sealed-bag models may suit buyers who want a simple use-and-dispose routine, provided they have a permitted disposal route and room for refills.
Composting models may suit travelers prepared to manage separation, venting, or mixing. Included components vary, so confirm ongoing supply and maintenance requirements before choosing.
Which Waterless Toilet Fits Your RV Setup?
For a compact RV bathroom and a straightforward bag-sealing routine, choose the modiwell R1808 Fixed: its 17 x 14 x 18-inch dimensions, adjustable bag-length modes, and rotating top make it the strongest all-round match. If positioning is the main challenge, the LOO SEAL R1808 also measures 17 x 14 x 18 inches and specifies a 180-degree swivel range. For longer stretches between recharging, consider the LOO SEAL LE-310, whose built-in battery is listed for up to 100 flushes per charge.
The Wrappon Sunny is a fit when AC or 12V DC power options matter. Choose the OGO Origin Compact or Sun-Mar GTG if you prefer a composting approach and can accommodate its installation needs.
The larger LECARDIO is better suited to buyers with room for its 32-inch depth.
Frequently Asked Questions
Where can you legally dispose of sealed dry-flush toilet bags while traveling?
Check local rules and the instructions for your toilet and its bags before disposing of them. Requirements can vary by location, and a sealed bag should not automatically be treated as ordinary household trash. When in doubt, ask campground staff or the relevant waste facility what disposal options they accept.
How much ventilation does a composting toilet need in an RV?
There is no single ventilation amount specified for every composting toilet in this set. Follow the selected model’s installation instructions, including any exhaust-fan and vent-routing requirements, and confirm the planned setup fits your RV. If the requirements are unclear, ask the manufacturer or installer before cutting openings or completing installation.
Will a dry-flush toilet battery last through a weekend trip?
It depends on the model, charge level, and number of uses; the information here does not establish weekend runtime for every toilet. The LOO SEAL LE-310 is listed for up to 100 flushes per charge, but that figure does not guarantee a particular trip duration. Fully charge the unit and check its guidance before leaving.
What should I consider when choosing between dry-flush and composting toilets?
Choose based on your preferred waste-handling routine and installation needs. Dry-flush models seal waste in refill bags, while the OGO Origin Compact and Sun-Mar GTG are composting options that require accommodating their installation needs. Check each model’s instructions and the space available in your RV before deciding.
Which toilet may fit a particularly tight RV layout?
Compare the installation space and shape, not just the toilet’s general category. The modiwell R1808 Fixed measures 17 x 14 x 18 inches and has a top that rotates 90 degrees left or right; the LOO SEAL R1808 has the same listed dimensions and a specified 180-degree swivel range.
Final Words
For a straightforward waterless setup in an RV, the modiwell R1808 Fixed is the strongest all-round choice here: its compact listed dimensions, adjustable bag-length modes, and rotating top address common space and positioning concerns. If swivel range is your priority, compare the LOO SEAL R1808; for longer stretches between charges, consider the LE-Choose a composting model only if its installation needs suit your RV, and check disposal and setup requirements before travel.


