Trelino® Evo S • Portable Composting Toilet
Trelino Evo S white back view
Trelino® Evo S • Portable Composting Toilet
Trelino Evo S white top view
Trelino® Evo S • Portable Composting Toilet
Trelino® Evo S • Portable Composting Toilet
Trelino® Evo S • Portable Composting Toilet
Trelino® Evo S • Portable Composting Toilet
Trelino Evo S gray back view
Trelino® Evo S • Portable Composting Toilet
Trelino® Evo S • Portable Composting Toilet


🇩🇪 Made in Germany

Trelino® Evo S • Portable Composting Toilet

Regular price $375
Shipping calculated at checkout.
  • Delivery time: 3-5 days Delivery time: 5-8 days
  • Free shipping within the US
  • 30-day free returns

Meet the Trelino® Evo S, the premier lightweight portable composting toilet on the market!

Our German-made design is simple, convenient, and super compact, making it the perfect choice for any outdoor enthusiast. Say goodbye to dirty, unhygienic pit latrines and hello to safe, comfortable, and environmentally-friendly waste disposal.

Product Highlights

  • Ultra comfortable Ultra comfortable
  • Super light-weight Super light-weight
  • Versatile use Versatile use
  • Absolutely hygienic Absolutely hygienic

Dimensions & Weight

  • Width 13.0 in Width 13.0 in
  • Depth 15.4 in Depth 15.4 in
  • Height 11.7 in Height 11.7 in
  • Weight 8.6 lbs Weight 8.6 lbs
At only 8.6 pounds, the Trelino® Evo S is the most lightweight + comfortable option on the market! It's designed to be practical and easy to use.

• Width 13.0 in
• Depth 15.4 in
• Height 11.7 in

The Trelino® Evo S is very compact and will fit in almost any vehicle.

Number One (Pee)
The urine canister has a volume of 1.2 US gal and holds 9 - 11 No. 1s.

Number Two (Poo)
The solids container has a volume of 1.6 US gal and holds 4 - 8 poos.

At 8.6 lb the Trelino® Evo S is very easy to transport.

Area of application
With compact dimensions and good capacity, the Trelino® Evo S is the perfect, sanitary companion in the van, trailer or boat.

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

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

Without water and chemicals, the Trelino® Evo S 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.

The Trelino® Evo S is a stable, robust and insensitive and dry separation toilet that accompanies you everywhere.

Due to the short emptying cycles, the Trelino® Evo S does not require the use of a fan.

The body (made of acrylonitrile butadiene styrene, ABS) and container (made of polypropylene) are made of recyclable plastic and are resistant to aqueous chemicals.

Lid attachment
The lid, which is attached to the toilet seat, has an automatic soft close feature.

Clean design with a difference!
With the Trelino® Evo S, you can choose between two colors (white & dark grey).

Regional production
Production is carried out exclusively 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 + seat with urine separator
  • ✔ Soft-close lid attached with hinges
  • ✔ Urine canister (1.2 gal) & Solids container (1.6 gal)
  • ✔ Lid with membrane closure + spare lid
  • ✔ 10 bags made of recycled materials
  • Design x Simplicity

    Carry the Trelino® Evo S with you wherever you go and still be able to quickly do your business and empty when needed.

    It has been designed with your comfort and convenience in mind. The seat and lid are ergonomically shaped to provide maximum comfort.

    Evo S by beach
    Small and simple

    The Trelino® Evo S can be transported to the most remote place and still offer you the same comfort as at home.

    Aside from its lightweight and portable design, the Trelino® Evo S is also an excellent option because of its easy-to-use system. Unlike traditional camping toilets, our separating process prevents smell and keeps unpleasant odors at bay.

    Enjoy nature like you are supposed to!

    • Material
    • Width (in)
    • Height (in)
    • Depth (in)
    • Emptying cycle
    • Urine capacity
    • Solids capacity
    • Water resistance
    • Cleaning
    • Handling
    • For Camper Vans & Trailers
    • For RVs
    • For Cabins
    • Weight
    • Load weight
    • Price
    • Trelino® Evo S • Portable Composting Toilet

      Trelino® Evo S

      • Quality ABS
      • 13.0
      • 11.7
      • 15.4
      • 1 - 2 days
      • 1.2 gal (9 - 11x)
      • 1.6 gal (4 - 8x)
      • Optimal
      • Super easy peesy
      • Super easy peesy
      • Optimal
      • Good
      • Good
      • 8.6 lb
      • 330.0 lb
      • $375 USD
      • Learn more
    • Trelino Evo M white with German Design Award

      Trelino® Evo M

      • Quality ABS
      • 13.0
      • 14.2
      • 15.4
      • 1 - 2 days
      • 1.3 gal (9 - 11x)
      • 2.1 gal (6 - 12x)
      • Optimal
      • Super easy peesy
      • Super easy peesy
      • Optimal
      • Very good
      • Good
      • 9.5 lb
      • 330.0 lb
      • $475 USD
      • Learn more
    • Trelino Evo L anthracite closed lid front view

      Trelino® Evo L

      • Quality ABS
      • 13.0
      • 16.9
      • 15.4
      • 2 - 4 days
      • 2.6 gal (12 - 22x)
      • 2.6 gal (11 - 20x)
      • Optimal
      • Super easy peesy
      • Super easy peesy
      • Very good
      • Optimal
      • Optimal
      • 10.8 lb
      • 330.0 lb
      • $599 USD
      • Learn more

    Customer Reviews

    Based on 95 reviews
    P.W. (United States)
    Evo S

    Couldn't be happier with my purchase. So much better than the 5 gallon bucket I was previously using. It's more comfortable, more stable, and much more convenient with the pee separator. The only downside is its height, which is easily remedied by placing it on a couple of cinder blocks. Overall a fantastic product I highly recommend.


    Excellent composting toilet. I love how it doesn't look like a toilet when disguising as a stool.

    Monna S. (Canada)

    Love the clean lines. Easy to clean. There are no cracks and hard to clean corners. Well thought out and design.
    It will go with me on many adventures from dry cabins to road trips. Love it so much.

    Katie F. (United States)
    Best and Only

    I installed this toilet in my van and it worked better than expected. There really is no odor. I used coconut mulch and it was fantastic. The toilet is compact, easy to use. It really is everything people say it is.

    Carbon-neutral shipping with Shopify Planet
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    Highest product quality, made in Germany 🇩🇪

    Our founders & team of experts ensure that we are producing and selling products of the highest standard, manufactured & engineered in Germany.

    Trelino founders in discussion about product development