Best Waterless Toilet For RV: Dry-Flush and Composting Options

#1 · Best Overall

1. LOO SEAL R1808 Waterless Toilet

• Dimensions: 17"D x 14"W x 18"H
• Weight: 21 lb
• Material: Acrylonitrile Butadiene Styrene (ABS)

Best for: Corner-layout RV owners.

Why it ranks #1: Its 17-by-14-by-18-inch footprint suits tight RV layouts, the top swivels 90 degrees each way, and automatic sealing avoids a water hookup or black tank.

The LOO SEAL R1808’s swivel top turns 90 degrees in either direction, letting RV owners orient the seat around corners, aisles, or tight floor plans. Its waterless dry-flush operation needs no water hookup or black tank, while the compact 17-by-14-inch footprint helps conserve floor space.

The automatic sealing system works with refill bags to contain waste, so the toilet’s routine centers on bag replacement rather than a water flush. A 2.5-hour full-charge time gives a useful charging reference for trip planning, and included charger, coagulant, refill bags, and urine tank provide several listed components. The unit is waterproof when fully closed to protect internal components from moisture. Its 21-pound weight and 18-inch height still require a planned installation area.

Skip it if you want a lighter unit for frequent carrying; the OGO NOMAD weighs 12 pounds, compared with this 21-pound toilet.

Best suited to RV owners working around a fixed corner or narrow aisle who want a self-contained dry-flush setup. Check the 17-by-14-inch footprint, 18-inch height, and charging access at the intended location.

Listed on Amazon as: R1808 Waterless Self-Contained Dry Flush RV Toilet with Swivel Top

#2 · Swivel-Top Fit

2. modiwell R1808 Dry Flush Toilet

• Dimensions: 17 x 14 x 18 in
• Weight: 21 lb
• Material: Polypropylene, Stainless Steel, Silicone

Best for: Adjustable-layout RV travelers.

Why it ranks #2: This 21-pound, 17-by-14-by-18-inch dry-flush model rotates 90 degrees left and right and includes refill bags and coagulant.

The R1808 pairs one-touch heat sealing with a toilet body that rotates 90 degrees left or right, helping fit the seat orientation to a constrained RV or van layout. Its waterless operation avoids a water hookup, while refill bags wrap and seal waste after the lid and lower sliding door are closed.

Pressing the button after closing the lid and lower sliding door activates automatic bag wrapping and heat sealing, keeping disposal steps straightforward. Adjustable bag length offers three operating modes, so bag use can be matched to small, standard, or large loads. The 17-by-14-by-18-inch footprint and 90-degree rotation in either direction support placement in compact cabins. Waterproofing applies when closed, and the included coagulant and refill bags provide supplies for initial operation.

Skip it if you need a lighter 17-pound unit; the modiwell LE-310 Compact weighs 17 pounds, compared with this model's 21 pounds.

A practical match for RV owners who want automatic bag sealing and flexible seat orientation in a compact footprint. Allow room for its 17-inch depth and plan around refill bags and charging rather than a water hookup.

Listed on Amazon as: R1808 Fixed RV Dry Flush Toilet, Waterless Rechargeable, White

#3 · Long-Use Battery

3. LOO SEAL LE-310 Dry Flush Toilet

• Dimensions: 19"D x 12"W x 18"H
• Weight: 16.5 lb
• Material: Acrylonitrile Butadiene Styrene (ABS)

Best for: Weekend dry-flush travelers.

Why it ranks #3: Its built-in 57.72 Wh battery is listed for up to 100 flushes per charge, making it useful for trips where frequent charging is inconvenient.

The LOO SEAL LE-310 Silver lists a built-in 57.72 Wh rechargeable battery rated for up to 100 flushes per charge, supporting weekend travel without a fixed power connection. Its Start button automatically seals waste in a refill bag, making the dry-flush disposal step straightforward for RV and off-grid use.

Automatic thermal waste disposal means pressing Start seals the refill bag, while the included coagulant and refill bags support the listed waste-handling system. The built-in, non-removable lithium-ion battery is stated to provide up to 100 flushes per charge, giving buyers a clear operating limit for trip planning. At 19 by 12 by 18 inches and 16.5 pounds, it calls for a defined installation space but remains lighter than the 21-pound R1808.

Skip it if you need a removable battery; this LE-310 has a built-in, non-removable battery, unlike a setup with a separately listed battery.

A suitable choice for weekend RV travelers who want automatic bag sealing and substantial listed battery capacity. Plan around the non-removable battery and the 19-by-12-inch footprint when selecting its installation location.

Listed on Amazon as: LE-310 Silver Smart Dry Flush Toilet for RV and Off-Grid Living

#4 · Lightweight Dry Flush

4. modiwell LE-310 Dry Flush Toilet

• Dimensions: 17"D x 17"W x 11"H
• Weight: 17 lb
• Material: Engineering Plastics, Stainless Steel

Best for: Setup-conscious van travelers.

Why it ranks #4: At 17 pounds, this automatic-sealing dry-flush toilet is relatively easy to handle, and the package includes coagulant, bags, and a charging cable.

The LE-310 Compact uses one-click thermal waste sealing, so van travelers can dispose of waste without a water flush or manual bag sealing. At 17 pounds and 17 by 17 by 11 inches, its low profile offers a more compact-height option for mobile living, with coagulant and charging cable included.

The Start button triggers automatic sealing, and the supplied waste bags and coagulant support the dry-flush workflow without requiring a water connection. Its 11-inch listed height can suit installations where vertical clearance matters, while the 17-by-17-inch footprint still needs dedicated floor space. Setup guidance is available in the product video. The rear switch should be turned off after each use to save power, an extra step to include in the operating routine.

Skip it if you want the toilet to switch off without a post-use step; the LOO SEAL LE-310 Silver lists an integrated rechargeable battery.

Choose this for a van or RV owner who values one-button sealing, included consumables, and a low listed height. Check the 17-inch-square footprint and account for switching off the rear control after use.

Listed on Amazon as: LE-310 Compact Dry Flush Toilet for Van Life and Off-Grid, Gray

#5 · Cartridge Included

5. Laveo Dry Flush Toilet

• Dimensions: 20"D x 16"W x 18"H
• Weight: 27 lb
• Material: Low Density Polyethylene (LDPE)

Best for: Cartridge-based off-grid users.

Why it ranks #5: The 27-pound self-contained toilet includes a battery, charger, two cartridges, and pee powder; each cartridge handles 15 solids flushes or 28 with powder.

Laveo’s cartridge system offers up to 15 solid-waste flushes per cartridge, or 28 when using the included Pee Powder, giving off-grid users a defined disposal interval. The waterless toilet needs no bulking material or chemicals, and a full cartridge is removed as a sealed black bag for disposal.

The included battery and charger support use away from a fixed power connection, while two cartridges and a bottle of Pee Powder provide supplies to start. Using the powder extends cartridge life by 40% according to the supplied feature information, so buyers can choose between the stated 15-solid-flush and 28-flush figures. At 20 by 16 by 18 inches and 27 pounds, it calls for more storage and handling room than a small portable unit.

Skip it if you need a lighter portable toilet; the OGO NOMAD weighs 12 pounds, while this Laveo weighs 27 pounds.

A fit for RV and off-grid users who prefer sealed cartridge disposal and want a stated flush capacity. Make room for its 20-inch depth and consider the cartridge handling routine before choosing it for frequent relocation.

Listed on Amazon as: Laveo 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

#6

6. OGO NOMAD Composting Toilet

• Dimensions: 15.4"D x 13"W x 12.38"H
• Weight: 12 lb
• Material: Polypropylene (PP)

Best for: No-power portable campers.

Why it ranks #6: Its 15.4-by-13-by-12.38-inch dimensions and 12-pound weight suit small RVs, and it needs no power, plumbing, or chemicals.

The OGO NOMAD operates without electricity, plumbing, or chemicals, giving truck campers and primitive-site users a toilet option that does not depend on hookups. At 12 pounds and 15.4 by 13 by 12.38 inches, it is notably portable in form, with compostable bags, coco coir, and a cleaning spray bottle included.

Because it needs no power or plumbing, the NOMAD can be used in settings such as rooftop tents, boats, and hunting blinds where connections are unavailable. Its composting approach uses medium, with coco coir supplied to get started, while two compostable bags and a spray bottle support waste handling and cleaning. The 12-pound weight helps with carrying between locations. Buyers should still plan space for its 15.4-inch depth and 13-inch width.

Skip it if you want one-button thermal bag sealing; the modiwell LE-310 Compact automatically seals waste bags with its Start button.

Choose the NOMAD for campers and RV users who need a lightweight, fully off-grid toilet without power or plumbing. It uses composting medium and bags, so make sure that waste-handling method fits your trip.

Listed on Amazon as: OGO NOMAD Self-Contained Composting Toilet – Urine-Diverting, Portable RV

#7

7. Compo Closet Cuddy Toilet

• Dimensions: 17"D x 15.2"W x 16.5"H
• Weight: 12.7 kg
• Material: Plastic: ABS

Best for: 12-volt RV composting users.

Why it ranks #7: Designed for RVs and other mobile spaces, this self-contained composting model measures 17 by 15.2 by 16.5 inches and includes a 12V power cable and carbon filter.

The Cuddy combines a 12-volt fan and carbon filter with a manual mixer, giving RV users ventilation and a hands-on way to turn waste after each visit. Its 17-by-15.2-by-16.5-inch body is described as fitting flush or freestanding in tight areas, offering two placement approaches for mobile spaces.

The included 12-volt power cable connects to a van’s electrical supply, supporting the fan-based ventilation setup without a listed household power adapter. A carbon filter is included, while the manual handle-operated mixer means users need to mix after each visit rather than rely on automatic processing. Composting material is added once before use according to the supplied feature, which simplifies repeated material loading. Its 12.7-kilogram weight and compact dimensions suit planned mobile installations.

Skip it if you want no post-use mixing; the waterless Separett Villa is listed as requiring no mixing or additives.

A match for RV or van owners who can connect the 12-volt cable and accept manual mixing in exchange for a compact composting setup. Choose flush or freestanding placement based on the available floor area.

Listed on Amazon as: Cuddy Composting Toilet – Odorless, Waterless & Self-Contained for RVs, Vans, Boats, Tiny Homes & Off-Grid | 3.9 Gal, 12V Fan, Carbon Filter, No Chemicals, Easy Clean

#8

8. Nature's Head Spider Handle Toilet

• Dimensions: 20.98"D x 19.02"W x 20.98"H
• Weight: 28 lb
• Material: Plastic

Best for: Extended-use composting households.

Why it ranks #8: This self-contained composting toilet has a 20.98-by-19.02-by-20.98-inch footprint and a stated four-to-six-week emptying interval for two full-time users.

Nature’s Head lists a 4-to-6-week emptying interval for two full-time users, making its large-capacity composting approach relevant to longer stays. The Close Quarters Spider Handle design identifies the model’s handle configuration, while the self-contained format is presented as easy to install for a reasonably handy person.

For a couple using it full time, the stated 4-to-6-week interval can reduce how often waste needs attention compared with a short-cycle portable system. Emptying is described as taking five minutes, so the maintenance task has a clear listed duration. The unit measures about 21 inches in each dimension and weighs 28 pounds, making space and initial placement important. Its composting format differs from automatic thermal sealing and requires buyers to choose that waste-handling workflow.

Skip it if you need a small toilet for frequent relocation; the OGO NOMAD weighs 12 pounds and measures 15.4 inches deep.

A fit for couples seeking a self-contained composting toilet for longer stays and willing to reserve a fixed space. Its approximately 21-inch dimensions and 28-pound weight make placement worth planning before installation.

Listed on Amazon as: Nature's Head Self Contained Composting Toilet with Close Quarters Spider Handle Design

#9

9. Thinktank Waterless Toilet

• Dimensions: 23.2"D x 18"W x 19"H
• Weight: 30 lb
• Material: Plastic

Best for: Ventilated urine-diversion setups.

Why it ranks #9: Its separate ventilation pipes and bag-contained waste offer a distinct waterless setup, but its 23.2-by-18-by-19-inch dimensions demand substantial RV space.

Thinktank separates air intake and exhaust through dedicated vent pipes, a feature intended to avoid losing heated or cooled indoor air while ventilating the toilet. Its urine-diverting layout is described as usable by women without aiming and by men standing, while a trap door conceals bagged waste from view.

The supplied package includes two 16-inch vent pipes and a wall adapter, so installation involves planning a route for ventilation rather than connecting a water line. Waste stays in a bag inside the solid-waste container, and the product describes the bowl-free arrangement as easy to clean. At 23.2 inches deep, 18 inches wide, and 30 pounds, it needs more floor and handling room than a compact portable toilet.

Skip it if you cannot route ventilation through your installation area; the waterless OGO NOMAD requires no plumbing or power.

Consider Thinktank for a fixed RV or cabin installation where its vent routing and urine-diverting use suit the occupants. Its 23.2-inch depth and supplied vent components call for more planning than a simple portable setup.

Listed on Amazon as: Thinktank Waterless Toilet White

#10

10. Separett Villa Toilet

• Dimensions: 26.5"D x 18"W x 21.3"H
• Weight: 34 lb
• Material: Paper

Best for: Long-stay waterless installations.

Why it ranks #10: This waterless urine-separating system supports off-grid use, but its 26.5-by-18-by-21.3-inch dimensions make it a less convenient fit for many RV interiors.

The Separett Villa uses urine-diverting composting rather than a flush-and-seal bag cycle, supporting extended use between emptying periods. It operates without water, additives, or mixing, which can simplify an off-grid routine where plumbing and recurring bulking steps are undesirable.

Urine diversion separates the waste streams, while the stated high-capacity design is intended to accommodate longer intervals between emptying. With no water connection, additives, or mixing required, day-to-day operation avoids several common toilet inputs and manual processing steps. The 26.5-by-18-by-21.3-inch dimensions and 34-pound weight make it better suited to a planned installation than frequent carrying. Local rules may govern waterless toilet use, so buyers should check requirements before installation.

Skip it if you need a lightweight portable unit; the OGO NOMAD weighs 12 pounds and is listed for portable RV use.

A candidate for RV owners or remote-property residents prioritizing waterless urine diversion and fewer routine inputs. Its 34-pound weight and deep footprint favor a fixed location, and local acceptance rules should be checked before installation.

Listed on Amazon as: Separett Villa Urine-Separating Compost Toilet