FOR Thetford Cassette Toilet C200 C2 C3 C4 Lip Seal 23721 FREE POST CE
FITS Thetford part number: 23721. FITS cassette toilet Iip seal 23721 for C200/C250/C400/C2, C3 and C4 models. C200，C250，C400，C500，C2，C3，C4. 1 x Toilet Cassette Lip Seal. Fits cassette models from June 200o onwards：.