Trelino® Origin M Portable Composting Toilet
Compact Dry Toilet for Vans, RVs & Off-Grid Travel
The Trelino® Origin M Composting Toilet is a compact and versatile sanitation solution designed for van life, camping, and mobile living. Built in Germany with high-quality materials, the Origin M combines durability, convenience, and clean design with a sturdy wooden lid that adds both functionality and style.
Positioned between the ultra-compact and larger models, the Origin M offers an ideal balance of portability and capacity, making it perfect for Sprinter vans, truck campers, RVs, boats, and off-grid travel setups.
Using a urine-diverting separation system, the Origin M keeps liquids and solids separate to eliminate odors while operating completely without water, plumbing, or chemicals. This simple and sustainable system makes it easy to stay comfortable wherever your adventure takes you.
Key Features
Convenient Mid-Size Design
The Origin M offers a balanced capacity and compact size, making it ideal for van conversions and travel vehicles.
Portable & Easy to Transport
Weighing only 12.8 lbs, the toilet can be easily moved, transported, or installed permanently in your van.
Durable Wooden Lid
A handcrafted birch wood lid adds durability while giving the toilet a premium look that blends with van interiors.
Magnetic Lid Attachment
Strong holding magnets keep the lid securely closed even while driving on rough roads.
Odor-Free Operation
The urine-diverting separation system keeps liquids and solids apart to prevent unpleasant smells.
No Water or Chemicals Required
Operate completely off-grid without plumbing systems or chemical treatments.
Hygienic & Easy to Clean
Removable containers allow simple emptying and easy cleaning.
Water-Resistant Construction
The polyethylene exterior allows use in wet environments such as showers.
Capacity
Urine Container
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1.3 gallon capacity
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Holds approximately 9–11 uses
Solids Container
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1.8 gallon capacity
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Holds approximately 5–10 uses
Dimensions & Weight
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Width: 13.0 in
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Depth: 15.4 in
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Height: 13.2 in
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Weight: 12.8 lbs
The Origin M remains compact enough to fit easily inside vans and campers while offering greater capacity than smaller portable toilets.
Built for Travel & Adventure
Compact for Van Life
Its size makes the Origin M particularly well suited for Sprinter vans, truck campers, RVs, and boats.
Sustainable Sanitation
No water or chemicals are required, reducing environmental impact and simplifying waste management.
Independent Travel
Enjoy complete freedom from dump stations and plumbing systems.
Leak-Proof Construction
Durable design protects against spills while traveling.
Strong & Stable Body
Built with a robust housing designed to withstand the demands of van life and outdoor adventures.
Optional Fan Installation
A ventilation fan can be installed to accelerate drying and reduce condensation.
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A hole must be drilled for installation
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Recommended drill size: 1.53 inches using a step drill
Materials
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Body & Containers: Recyclable polyethylene (PE), resistant to acids and chemicals
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Lid: Waterproof glued multilayer birch wood
How a Composting Toilet Works
A composting toilet uses a urine-diverting separation system to keep liquids and solids apart.
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The separator insert directs urine into the canister
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Solids are collected in a bag-lined container
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A drying material such as coconut coir or animal bedding absorbs moisture and prevents odors
This process keeps the toilet dry, hygienic, and odor-free.
Frequently Asked Questions
Why don’t composting toilets smell?
Odors occur when liquids and solids mix. By separating them and drying the solids with litter material, the system prevents odor buildup.
Do I need to empty the bag after every use?
No. The solids container can hold multiple uses before needing to be emptied, depending on usage.
What litter material should I use?
Recommended options include:
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Coconut coir
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Small animal bedding
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Other absorbent natural litter materials
Do I need a fan?
The Origin M functions without a fan, but installing one can speed up drying cycles, especially for longer trips or multiple users.
How do I dispose of the waste?
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Urine: Pour into a toilet connected to a sewer system
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Solids: Dispose of the bag like a dog waste bag or diaper according to local regulations
How do I clean the toilet?
Cleaning is simple:
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Wipe the seat and bowl as needed
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Empty and rinse the urine container every few days
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Replace the solids bag when full
Cleaning solutions such as vinegar or citric acid work well.
What Makes Trelino® Different
Trelino® toilets are manufactured in Germany under strict production standards and fair labor practices. Designed to reduce disposable waste culture, each toilet is built from high-quality materials intended for long-term durability.
What’s Included
✔ Exterior body
✔ Wooden lid with securing magnets
✔ Toilet seat with integrated separator
✔ Urine canister (1.3 gal)
✔ Solids container (1.8 gal)
✔ Lid with membrane closure + spare lid
✔ 10 waste bags made from recycled materials
