Features & Benefits A convenient kit to use to diagnose a vehicle's A/C system if you don't have the necessary RRR machine, or if the RRR machine is being used to service another vehicle. Works on A/C systems that use the new R-1234yf refrigerantR-1234yf ManifoldOversize gaugesHose holders6 ft High quality Goodyear hosesR-1234yf Vehicle couplers
