Female High Side Hose Fitting Refrigerant Type 134A R12 R22 R502 MP39 MP66 and R404A Female Thread (In.) 5/8-18 Dash Size 6 Min Burst Pressure (PSI) 2000 Max Working Pressure (PSI) 500 Hose Outside Dia (In.) 0.58 Hose Inside Dia (In.) 0.31 Material Steel For Use With Male O-Ring Standards SAE J2064