Female O-Ring Hose Fitting Refrigerant Type 134A R12 R22 R502 MP39 MP66 and R404A Female Thread 3/4-16 In Dash Size 8 Min Burst Pressure 2000 PSI Max Working Pressure 500 PSI Hose Outside Dia 0.7 In Hose Inside Dia 0.41 In Material Steel For Use With Female O-Ring and 45 Degree Elbow Standards SAE J2064