191mm Outside Diameter x 180mm Inside Diameter, Food Grade Hose & Ducting, 10 Metres, AIRDUC PUR 355 FOOD, Wall Thickness 1.5mm, Bend Radius 139mm, Weight 2.87 Kg per Metre, Maximum Vacuum Pressure 0.135 bar, Working Temperature -40┬░C to +90┬░C, Working Pressure 0.645 bar, Norres