259mm Outside Diameter x 250mm Inside Diameter, Food Grade Hose & Ducting, 10 Metres, AIRDUC PUD 351 FOOD, Wall Thickness 1mm, Weight 2.390 Kg per Metre, Maximum Vacuum Pressure 0.035 bar, Working Temperature -40┬░C to +90┬░C, Working Pressure 0.290 bar, Norres