73mm Outside Diameter x 65mm Inside Diameter, High Temperature Ducting, 10 Metres, AIRDUC HT-PUR 351, Wall Thickness 1.0mm, Weight 0.530 Kg per Metre, Maximum Vacuum Pressure 0.255 bar, Working Temperature -40┬░C to +125┬░C, Working Pressure 1.135 bar, Norres