Trelino® Technology

Principal system design

Trelino® composting toilets are categorized as urine diversion to container systems, providing efficient and sanitary waste management through separation and containment.
By directing liquids and solids into separate chambers, Trelino® systems extend the capacity of the solids chamber and make waste disposal more convenient for travelers.

Advanced features

Recipient of the prestigious German Design Award 2023, Trelino® composting toilets combine innovation with practicality.

The ultra-lightweight build makes them a smart choice for keeping down the overall weight in campervans and ensures easy transportation in portable camping applications.

Both the solids chamber and the liquids chamber are conveniently accessed from the top, streamlining maintenance.

The ergonomically designed urinal prevents splashing and overflow, ensuring a clean experience.

The soft-close seat adds a touch of comfort while reducing noise and wear.

The solids chamber is compatible with compostable bags, allowing for effortless and hygienic disposal.

To vent or not to vent?

Trelino® composting toilets are available in three sizes: S, M, and L.

The smaller S systems do not require venting due to short containment period.

The larger M and L systems can be used as portable systems without ventilation, or installed as permanent fixtures in the RV with the addition of a fan and external vent to manage longer berthing periods. 

Where can you go with a Trelino®?

Trelino® composting toilets are perfect for travel. Whether installed in an RV or campervan, or used as a portable camping toilet, with three versatile sizes, there is a Trelino® toilet to suit every adventure.

The smaller systems are ideal for camping, offering a convenient portable toilet solution. The larger systems are perfect for campervans and RVs, providing reliable waste management on the go.

WCTNZ® | Waterless Composting Toilets NZ Limited | Copyright 2025 ©