Description

Thetford Toilet C403-C Cassett

Thetford Toilet C403-C Cassette – Left or Right Hand Entry

The Thetford C403 Cassette Toilet is the current replacement for the discontinued C402C Bench model and delivers a practical, hygienic sanitation solution for caravans, motorhomes, and RVs.

Designed for compact installations, the C403 maintains the same footprint as its predecessor while offering updated styling, improved controls, and dependable electric flushing. It is available in both left-hand and right-hand cassette entry versions to suit different vehicle layouts. Left or right-hand entry refers to the user’s left or right side when seated.

The toilet features a removable waste-holding tank, making emptying and cleaning simple and hygienic. With a generous 19.3 litre waste tank capacity, it is well suited for extended trips. The electric flush system provides quiet yet powerful full-bowl coverage, operated at the touch of a button.

An LED level indicator keeps you informed of the waste tank status, while the separate 15 litre flush water tank ensures consistent flushing performance.

Technical Info:

• Orientation: Left or Right Hand Insert
• Overall dimensions (H x W x D): 512 x 670 x 400 mm
• Seating height: 473 mm
• Net weight: 8.1 kg
• Colour: White
• Bowl material: High-quality plastic
• Flushing system: Electric pump
• Flush water tank capacity: 15 litres
• Waste-holding tank capacity: 19.3 litres
• Removable waste tank mechanism: Yes
• Maximum seated load: 120 kg
• For access to remove the cassette, you may need a Thetford #3 Door on the outside of the vehicle (sold separately).
• This toilet comes with a 3-year warranty for your peace of mind.

INSTALLATION NOTES

An external service door is required for cassette access, typically a Thetford #3 Door is NOT included; click here for details, sold separately.

The C403 series uses a plumbing from the onboard water supply. Please allow for appropriate plumbing during installation.

If installing the toilet within a shower cubicle, ensure correct waterproofing and layout. Refer to our DIY Guide on Caravan Showers and Toilets for further guidance.

If you’re looking to install this toilet in a shower cubicle, be sure to check out our DIY Guide on Showers and Toilets for more information.

MODEL UPDATE NOTICE

The Thetford C402C Bench model has been discontinued by the manufacturer.
The Thetford C403 series is the direct replacement, offering the same dimensions and installation footprint with updated design and features.

Do you have a question regarding this product? Please email it to us on our Contact Form and we will be in touch.