Trelino Origin L open lid front
Trelino Origin L easy disposal
Trelino Origin L dimensions
Trelino Origin L leakproof
Trelino Origin L durable easy to clean
Trelino Origin L complete content


🇩🇪 Made in Germany

Trelino® Origin L • Composting Toilet for RVs

Regular price $745
Shipping calculated at checkout.
  • In stock, ready to ship
  • Inventory on the way
  • Delivery time: 4-6 days
  • Free shipping within the US
  • 30-day free returns

The best-looking composting toilet for RVs on the market! Designed and made in Germany, the Trelino Origin L has a comfortable seat height, a durable body and a very sturdy removable wooden lid.

Product Highlights

  • Comfortable seat height Comfortable seat height
  • Large capacity of 5.2 gal Large capacity of 5.2 gal
  • Beautiful design Beautiful design
  • Ideal for full-timers Ideal for full-timers

Dimensions & Weight

  • Width 13.0 in Width 13.0 in
  • Depth 15.4 in Depth 15.4 in
  • Height 18.1 in Height 18.1 in
  • Weight 15.0 lbs Weight 15.0 lbs

• Width 13.0 in
• Depth 15.4 in
• Height 18.1 in

The Trelino® Origin L is about one and a half times the height of a beer crate.

Number One (Pee)
The urine canister has a volume of 2.6 US gal and holds 12 - 22 No. 1s.

Number Two (Poo)
The solids container has a volume of 2.6 US gal and holds 11 - 20 poos.

At 15.0 lb the Trelino® Origin L is easy to transport.

Area of application
Due to its size, the Trelino® Origin L is well suited for installation in mobile homes, RVs, off-grid cabins or tiny houses.

Odor neutrality
The separation and drying function of the toilet prevents unpleasant smells.

By dispensing with chemicals and water, the Trelino® Origin L is environmentally friendly and preserves natural resources.

Without water and chemicals, the Trelino® Origin L offers the freedom to travel independently of disposal stations.

Hygiene and cleanliness
Individually removable containers allow separate emptying and easy cleaning.

Leakage safety
Due to the solid workmanship, the exterior is leak-proof and protects against unpleasant mishaps on the road.

Water resistance
The exterior made of polyethylene is water resistant and therefore can also be used in the shower.

With its high-quality, robust body, the Trelino® Origin L takes on any adventure.

A fan can be installed for even faster drying of the solids. The hole in the separation toilet for the fan must be drilled yourself. We recommend a step drill 1.53 inches.

The body and containers of the Trelino® Origin L are made of recyclable, acid and chemical resistant polyethylene (PE). The waterproof glued lid is made of multilayer, untreated birch wood.

Lid attachment
The lid is fixed by holding magnets, which ensure that the separation toilet always remains well closed.

With its stylish wooden lid and shapely curves, the Trelino® Origin L will turn your smallest room into something very special.

Regional production
Production is carried out exclusively in Germany, taking into account high social standards. Trelino® Origin L is exclusively produced in Germany, taking into account high social standards.

How does a composting toilet work?

The inner workings of a composting toilet essentially consist of three parts: separator, urine canister and solids container. The separator leads the urine into the canister, while the solids end up in a bucket with a compost bag. You can also read a more detailed version in our blog post here.

What should I pay attention to when using it?

The correct sitting position is crucial for the best possible function of a composting toilet. For anatomical reasons, this differs for women and men. 

Why does a composting toilet not smell?

Odors are caused by the mixing of solids and liquids. Separating the excreta and then drying the solids prevents undesirable aromas. 

Do I have to change/empty the plastic bag after each use?

No! The whole point of using litter as a cover material to dry out the poo is that you can use the bag for several days and only empty it once full enough. Depending on the size, the bags hold between 3 and 12 number 2s.

Where can I get the litter / cover material to dry the solids?

You will be able to buy litter from us some time early next year. Until then or otherwise you can also buy good litter material from any garden or home improvement store. Find more info on our blog post about litter here.

Do I need a fan?

For other types of toilets, you might think about using a fan to counteract condensation, which accelerates the drying process of the solids and ensures that fragrances quickly dissolve into thin air. This is not necessary for your Trelino® because you would use a litter material after each use which dries out the solids and removes the smell. On top of that, the emptying cycles are quite frequent so you can very quickly dispose of your bag.

What happens when I have diarrhea?

Diarrhea is not a problem when using a composting toilet. Just use more litter to compensate for the liquid.

Where do I dispose of the contents?

Urine can easily be disposed of in a toilet connected to the sewer system. Diluted, it is also suitable as fertilizer for the home garden or the raised bed on the balcony. The bag with the solids is a case for the residual waste garbage can. Conditionally, composting is also possible. The urine canister and solids container can be emptied independently of each other.

Plastic bags and composting - how do they fit together?

For us, sustainability and environmental awareness do not end with disposal - we think beyond the garbage can. That's why we use renewable, organic materials for our solid bags that can be easily composted.

How do I clean a composting toilet?

Cleaning a composting toilet is as simple as its use. The household remedy diluted vinegar concentrate has proven its worth for most of the cleaning. Read more about it in our blog post here.

What makes Trelino® so special?

Trelino® is a quality product designed to last. A high-quality composting toilet that will accompany you for many years and makes a statement against the throwaway culture. In addition, Trelino® combines optimal functionality, ease of use and high comfort behind a unique design.

Scope of delivery

  • Exterior body
  • Wooden lid with securing magnets
  • Toilet seat with integrated separator
  • Urine canister (2.6 gal) + Solids container (2.6 gal)
  • Lid with membrane closure + spare lid
  • 10 bags made of recycled materials
Good-looking & large capacity

No more being ashamed of your toilet! With the Trelino® Origin L you are now proud to show off your bathroom.

With a total capacity of more than 5 gallons, you can now enjoy long trips without worrying about dumping stations or bathrooms anymore.

Dog sitting in van next to Trelino
Highly durable & your best friend

Using, emptying & cleaning the Trelino® Origin L are super simple and will make your life much easier.

Welcome to a new lifestyle, even your pet will love it!

Carbon-neutral shipping with Shopify Planet
Carbon-neutral shipping on all orders

Customer Reviews

Based on 101 reviews
Kevin B. (United States)

I love the freedom that comes with my Trelino, and the L size is just right for added comfort no matter where I go!!!

Arwen E. (United States)
Perfect off grid solution

Environmentally friendly, handles capacity of 4 people full time. Kids had no problem learning how to use properly

John D. (United States)
Unexpected tryout

While we have not yet had a chance to tryout our Origin L on the road we have had a chance to use it.
A week before Christmas we had a sewer line break in our home (not actually inside but outside...Thank God!!). 3 weeks and $5600.00 later we have working plumbing again. Our Trelino was put to the test and performed admirably. Went to the pet store and got some Aspen shavings and coconut coir. As long as the toilet was closed it was odorless but take off the top, and while not overpowering, one couldn't help but know what it was full of. Just a matter of adjusting amounts of litter and I'm sure we can do better.
All in all I think we have a winner and can't wait to "take it on the road".

Emily G. (United States)
no stress

love this toilet, best investment for my van travels. no stress about toilet things anymore. super straightforward design & easy to use. i got the largest toilet, it would be nice for the outside to have handles on either side for easier handling, the entire toilet is hard to carry if i need to remove it from inside the van.

Love it!