Career 707, Shinsung, Sumatra Fill Probe. Best Fittings Spec with slimmer ‘O’ rings. Overcomes the problem of the original adaptors that were prone to breaking in half! Standard 1/8″BSP male thread for direct fitting to a flexible fill line, or one of our QC03 quick release fittings. Complete with spare ‘O’ rings and silicone grease kit.