73mm Outside Diameter x 65mm Inside Diameter, ATEX Compliant Ducting, 10 Metre Coil, AIRDUC PUR 351 EC, Wall Thickness 0.8mm, Weight 0.530 Kg per Metre, Maximum Vacuum Pressure 0.235 bar, Working Temperature -40°C to +90°C, Working Pressure 0.800 bar, Norres