Clesana C1 Waterless Toilet with L-Adaptor

The future of campervan toilets has arrived.

Forget cassette tanks. Forget chemicals. Forget searching for disposal points.

The Clesana C1 with L-Adaptor completely redefines mobile sanitation for campervans and motorhomes. Designed and manufactured in Switzerland, the C1 uses advanced thermo-pressure sealing technology to hygienically seal waste into odour-proof barrier film bags without requiring water, chemicals or a traditional waste cassette.

Clean. Simple. Modern.

Designed specifically for replacing existing cassette toilets, the L-Adaptor version integrates seamlessly into many campervan and motorhome washrooms originally fitted with Thetford C220 and C260 systems. It utilises the existing toilet location whilst covering the original cassette access hatch area for an exceptionally clean retrofit solution.

No black tank. No blue chemicals. No unpleasant emptying process.

Just press the button and the C1 automatically seals waste hygienically inside a multi-layer barrier film liner, leaving the bowl freshly lined and ready for the next use.

Designed for modern off-grid living.

The Clesana C1 gives you the freedom to travel without depending on campsite disposal facilities or carrying flushing chemicals. Whether you are wild camping in the Highlands, travelling across Europe or building a fully self-sufficient off-grid vehicle, the C1 delivers a cleaner and more convenient experience every day.

Because the system operates completely water-free, there is no flush tank to refill, no cassette to empty and no frozen waste system during winter travel.

It simply works.

Hygienic by design.

Originally developed using medical-grade sealing technology, the Clesana system encapsulates waste into airtight sealed bags designed to prevent odours, leakage and contamination.

Every flush creates a fully sealed hygienic package in approximately 60 seconds.

No smells. No mess. No compromise.

Built for campervan conversions.

The C1 operates directly from a standard 12V leisure battery system and is designed to integrate perfectly into modern campervan electrical systems including lithium battery and solar setups.

Power consumption is extremely low, making it ideal for off-grid applications.

Key Features

• Waterless operation
• No chemicals required
• No cassette tank or black tank
• Odour-proof hygienic sealing system
• Designed for cassette toilet replacement
• Compatible with many Thetford C220 and C260 layouts
• 12V leisure battery operation
• Ideal for campervans and motorhomes
• Minimal maintenance requirements
• Swiss engineered design

The Clesana C1 waterless welding toilet measures 51.5 cm (H) x 36.3 cm (W) x 46.1 cm (D)

Important Information

Please note: All Clesana products are imported goods. Delivery lead times can vary depending on shipping schedules and customs processing. Please allow approximately 3–10 working days for dispatch and delivery.