84mm Outside Diameter x 75mm Inside Diameter, ATEX Compliant Ducting, 10 Metre Coil, AIRDUC PUR 351 EC, Wall Thickness 0.8mm, Weight 0.610 Kg per Metre, Maximum Vacuum Pressure 0.180 bar, Working Temperature -40°C to +90°C, Working Pressure 0.605 bar, Norres