The turbo system leakage tester helps locate air leaks in the components by plugging the output side of the turbo and plugging the intake inlet. Air is applied through one end of the adapter to show the presence of leaks within the system. Kit features a pressure gauge, shut off valve and pressure regulator. This setup can also be used on cooling system hoses. Contains: (Qty.) (1) Pressure gauge assembly, (6) Stepped adapters 16-90 mm.