159mm Outside Diameter x 150mm Inside Diameter, ATEX Compliant Ducting, 10 Metre Coil, AIRDUC PUR 351 EC, Wall Thickness 0.8mm, Weight 1.330 Kg per Metre, Maximum Vacuum Pressure 0.070 bar, Working Temperature -40°C to +90°C, Working Pressure 0.490 bar, Norres