• Quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets
• Leak-down tests are a more accurate way to diagnose overall engine health
• Regulated shop air is applied to each cylinder then monitored for level of leakage
• Dual 2-1/2 in. gauges with metal bezels, and protective, rugged outer boots
• Quick-connect fittings help make the setup fast and easy as you move to each cylinder
• Includes: Manifold with two gauges, 60cm. (23.6 in.) hose, and M10, M12, M14, M18 threaded adapters
• Handy fitted blow molded case for storage
(California Prop 65)