Thetford Measuring Cup / Cassette Cap - Suits C250/C260

This measuring cup replaces the pour-out cap on the waste holding tank of Thetford C250/C260 cassette toilets. It allows you to both seal the tank and accurately measure toilet chemicals for each use. It is intended as a spare or replacement for the original cap on C250/C260 cassette toilet holding tanks in caravans and motorhomes. Check that your toilet is a C250 or C260 before ordering to ensure correct fitment.