263mm Outside Diameter x 250mm Inside Diameter, Food Grade Hose & Ducting, 10 Metres, AIRDUC PUR 355 FOOD, Wall Thickness 1.5mm, Bend Radius 191mm, Weight 3.88 Kg per Metre, Maximum Vacuum Pressure 0.075 bar, Working Temperature -40┬░C to +90┬░C, Working Pressure 0.465 bar, Norres