... 20/11 bar. AEROFLEX-tube of EPDM,1.Light, flexible, closed cell, synthetic caoutchouc;2.Free of PVC, ... .Quick assembly technology3.Saving time and energy 4.High quality flexible stainless steel corrugated pipe5.Closed cell Aeroflex ... Friendly CFC ,HCFC free UV, Weather ResistanceExcellent Flexible Stainless Steel Corrugated PipeMaterial SUS304/316LOuter Diameter(mm)DNThickness ...