Item #: MSC45721. Features & Benefits: Auto shut-off valves automatically retain refrigerant in the service hose Meets EPA, SAE, and UL standards for containment of refrigerant 72" blue hose Burst Pressure 3,000 PSI 750 PSI working pressure Auto shut-off valves automatically retain refrigerant in the service hose when they are removed from the system. Replace your old shorter hoses with with this more professional, safe and convenient hose. Customers also search for: Discount 72" R12 Blue Charging Hose w/Shut Off Valve Fittings, Buy 72" R12 Blue Charging Hose w/Shut Off Valve Fittings, Wholesale 72" R12 Blue Charging Hose w/Shut Off Valve Fittings, 700376457216, ToolWeb, Air Conditioning Charging Equipment