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Thetford Cassette Toilet Lip Seal for C2/3/4, C250 & More - 23721

8 Customer Reviews Write a Review
£14.95 (Inc. VAT )
£12.46 (Ex. VAT )
SKU:
23721
Availability:
1 - 2 working days
Shipping (T&Cs Apply):
Shipping & Returns Policy Details

Thetford Cassette Toilet Lip Seal

This item is for C2, C3 and C4 cassette toilets built after 15/06/2000, as well as C250, C260, C400 and C500 toilets.

This is a genuine Thetford spare.

Thetford C2/C3/C4 lip seal - installation guide:

download-manual.jpg

Must be fitted by qualified technical trained operatives only

Part no. 23721

Write a Review
  • Good seal
    5

    Posted by Ian Wilkinson on 24th Sep 2026

    Easy to fit and works perfectly. There are plenty of Chinese copies available but why compromise when the seal only needs to be replaced every 5-10 years?

  • Lip Seal
    5

    Posted by Leo Evans-Doran on 25th Jul 2025

    Perfect. Easy fit and delivered promptly.

  • THETFORD C250 Holding Tank Lip Seal
    5

    Posted by Ian Kennedy on 6th May 2024

    As described - delivered quickly - no need to take tank apart can be changed from the top - Jackson Leisure is a great company to order from and I would definitely recomend - Thank you

  • Cassette Toilet Lip Seal
    5

    Posted by Mr. L. Parker on 22nd Sep 2023

    Quick delivery, and looks just the job. Thank you.

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