A genuine OEM yellow blade opener knob for Thetford C200 cassette waste tanks. Designed to twist/open the blade that seals the holding tank opening, allowing waste to be emptied securely and preventing leaks when closed.

For correct function and hygiene, the blade opener must make a tight seal when the blade is closed. This yellow opener is made as a direct replacement for worn, broken, or leaking blade knob units.

OEM Part Number: 2374378 (also known as T23743-78)

Kit Includes:

• 1 × Yellow blade opener knob (twist control)

• Bracket / mounting clip (white plastic clip)

Compatibility:

• Fits Thetford C200 cassette toilets (C-200CW, CWE, C200S, etc.)

• Also fits Thetford C250 waste tanks using same blade opener style

Colour / Finish: Yellow knob with matching plastic skirt

Diameter of knob: 40 mm

Frequently Asked Questions

Q: What does the blade opener knob do?
It operates the blade inside your cassette tank that seals the waste opening. Twisting the knob opens or closes the blade to empty or seal the tank.

Q: Will this fit my toilet or waste tank?
Yes if you have a Thetford C200 series toilet (models like C-200CW, CWE, C200S) or a C250 waste tank that uses the same blade opener design.

Q: Is this part the complete opener or just the knob?
It includes the yellow knob and the bracket / mounting clip.