ME45722 Features: -Auto shut-off valves automatically retain refrigerant in the service hose.-Meets EPA, SAE, and UL standards for containment of refrigerant.-72" yellow hose.-Burst Pressure 3,000 PSI. Specifications: -750 PSI working pressureAuto 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..-72" R-12 Yellow Hose With Auto Shut-Off Valve Fittings. Warranty: -1 yr warranty on material and workmanship.