Clesana C1 with L-adapter

Clesana C1 with L-Adapter

Designed for straightforward retrofits, including many Thetford C220 and C260 installations

The future of campervan toilets has arrived.

Forget waste cassettes. Forget flushing chemicals. Forget planning your journey around disposal points.

Designed and manufactured in Switzerland, the Clesana C1 uses patented thermo-pressure sealing technology to hygienically seal toilet waste inside high-barrier film bags—without flushing water, sanitary chemicals or a conventional waste-holding tank.

Clean. Simple. Modern.

Designed for cassette-toilet replacement

The L-Adapter version has been developed specifically for retrofit installations. It positions the C1 against the washroom wall and helps conceal internal openings left by a previously installed toilet.

It is particularly suitable for many campervans and motorhomes originally fitted with Thetford C220 and C260 series toilets. Compatibility depends on the individual vehicle layout, available space and existing installation, so an installation assessment is recommended before ordering.

No waste tank. No blue chemicals. No unpleasant cassette emptying.

After use, simply press the appropriate button. The C1 automatically draws down the liner and uses heat and pressure to seal the contents inside a secure high-barrier bag. A fresh section of liner is then presented, ready for the next use.

The sealed bags collect in the lower compartment and can be removed without direct contact with their contents. They may be disposed of with residual household waste where local regulations permit.

Designed for modern off-grid travel

Because the Clesana C1 requires no flushing water, waste tank or drainage connection, it reduces your dependence on campsite service facilities.

Whether you are touring Europe, camping away from conventional facilities or creating a self-sufficient campervan, the C1 provides a cleaner and more convenient approach to mobile sanitation.

There is no flush tank to refill, no chemical waste cassette to empty and no black-water system to maintain.

Hygienic by design

Clesana’s sealing system has its origins in medical sanitation technology. Its specially developed multi-layer high-barrier liner is designed to resist the transmission of odours and moisture while securely containing waste.

At normal room temperature, Clesana states that correctly sealed bags remain odour-proof for at least two weeks. At higher temperatures, the manufacturer recommends disposing of them within two days.

No direct contact with waste. No chemical additives. Only simple routine surface cleaning.

Built for campervans and motorhomes

The Clesana C1 operates from a correctly specified 12 V leisure-battery system. Its energy consumption per cycle is low, making it suitable for many off-grid electrical systems, including properly designed lithium-battery and solar-charging installations.

The toilet can draw up to 22 A during operation, so the power supply, cabling and circuit protection must meet Clesana’s installation requirements.

Key features

• Completely waterless operation
• No sanitary chemicals required
• No cassette waste tank or black-water tank
• Patented thermo-pressure sealing system
• High-barrier film designed to contain odours and moisture
• L-Adapter designed for retrofit installations
• Suitable for many Thetford C220 and C260 layouts
• Approximately 40 sealed bags per liner on average, depending on use
• 12 V operation
• Low energy consumption per cycle
• Maximum operating current of 22 A
• Splash-resistant construction rated IPX4
• Minimal routine cleaning and maintenance
• Designed and manufactured in Switzerland

Technical specifications

• Dimensions: 515 mm high × 363 mm wide × 516 mm deep
• Seat height: 478 mm
• Weight with L-Adapter: approximately 13.8 kg
• Maximum load: 150 kg
• Supply voltage: 11.8–15 V DC
• Rated voltage: 12 V DC
• Maximum current: 22 A
• Maximum power consumption: 265 W
• Standby consumption: 0.28 W
• Operating temperature: 5–40°C
• Protection rating: IPX4

Important installation information

Compatibility with Thetford C220 and C260 installations is not universal. The available space, floor construction, wall openings, electrical supply and required operating clearances must be checked before installation.

Any redundant water connections must be safely isolated. Existing external service hatches and other openings may also require additional finishing, depending on the vehicle.

Professional installation is recommended.

Availability

UK-stocked items are prepared promptly. Some specialist items are supplied directly from Clesana’s European factory; please allow around 5–7 working days for dispatch. We will contact you if a lead time changes materially.