Robinair (10986) Orifice Tube Service Kit Automotive A/C orifice tube remover tool kit allows removal of orifice tubes before flushing Speeds A/C service by removing the build-up of particulates on the orifice screen and restrictions that slow the flushing process The basic tool works on General Motors and Ford vehicles and comes with additional adapters for specific applications Ford: extender body for 1985 and newer models General Motors: 198991 GM 'J', 'L', and 'N' car adapter, and 1991 and newer 'C' and 'K' series truck adapter (for trucks with No. 3096068 orifices)