Orion Motor Tech AC Manifold Gauge Set for R410a R22 R134a Refrigerant, 4 Valve Automotive AC Gauge Set with Antishock Gauges Color Coded Hoses Couplers Adapters, Puncturing Can Tap Freon Recharge KitCOMPLETE AC TOOL SET: This kit includes a 4 way gauge, 4 color coded hoses, 2 adjustable 1 4'' quick couplers, a 1 2'' to 1 4'' Acme adapter, a 1 4'' to 5 16'' tank adapter, 5 16'' to 1 4'' angled and straight adapters, and a puncture style can tap HYBRID ANTISHOCK GAUGES: The 68 mm high and low pressure gauges combine the best features of dry and liquid filled designs, with an oil filled core resisting wear and shock and a dry dial providing better