RELIANT ROBIN 850 Mk1 ; YEARS 1973-1981. RELIANT KITTEN ; YEARS 1975-1982. These filters are easy to take apart and clean as part of your regular servicing and maintenance work for your Reliant. This filter is suppliedNEW and boxed and is designed to fit all cars fitted withHS2 (1 1/4" SU) carburettors.