Male O-Ring Hose Fitting Refrigerant Type 134A R12 R22 R502 MP39 MP66 and R404A Male Thread 3/4-18 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 Male O-Ring and Short Pilot Standards SAE J2064