Standard: SAE J2064 QC/T664-2005 Working temperature: -40℃-140℃ Appliable Refrigerant: R404a Dimension: 22mm I.D. : 22mm O.D. : 30mm Wall Thickness: 4mm Wall Diff Max: 0.4mm Working Pressure Max: 3.5Mpa Burst Pressure Min: 15Mpa Bend Rad Min: 125mm