Clesana C1. The Waterless Sealing Toilet.

Enjoy clean, comfortable travel without water, chemicals or cassette emptying. Choose the L Adapter for simple retrofits or the Round Base for new installations.

Safe. Sanitary. Comfortable.

The all-in-one Clesana C1 uses a special thermo-pressure process and a patented sealing mechanism to seal all waste fully automatically, safely and hygienically to medical standards in high-barrier film liners and collect it in a space-saving way.

Designed for real travel

A permanent upgrade, built for everyday use.

The Clesana C1 replaces a traditional cassette toilet in motorhomes, campervans and caravans. Its automatic thermo-pressure sealing contains waste without flush water or chemical additives, while the fixed installation gives your washroom a clean, integrated finish.

Clesana C1 - Two Variants to choose from

The Clesana C1 is available in two versions to suit different cassette-toilet configurations in campers and caravans. Depending on your vehicle, installation requires either a round base or an L-shaped adapter—commonly used with Thetford C220 and C260 models.

Our free installation check identifies the correct version for your vehicle. If you wish, we can then carry out the complete installation, including power management and a professional finish.

Clesana C1 with Round Base

For flexible placement in new builds and unique installation situations.

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Clesana C1 with L-Adapter

For simple installation, suitable for the Thetford C220 and C260 series.

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A simple Thetford cassette-toilet upgrade

Retrofit with the Clesana C1

Designed for Thetford C220 and C260 series toilets, the L-Adapter neatly covers and seals the cassette access opening left behind. The smart Clesana control panel replaces the existing Thetford flush control for a clean, integrated finish. Confident DIYers can install it themselves, or our team can provide a complete professional installation.

A flexible solution for new or existing installations

Install with the Clesana C1 Round Base

Creating a new washroom or fitting the C1 where there was no cassette toilet? The Round Base allows flexible positioning without needing to cover an existing cassette access opening. Confident DIYers can install it themselves, or our team can plan and complete a professional installation.