250mm Inside Diameter x 257mm Outside Diameter, Abrasion-resistant, Anti-static Industrial PU Ducting, 10 Metres, AIRDUC PUR 350 AS, Wall Thickness 0.7mm, Vacuum 0.045 bar, Weight 2.310kg per Metre, Working Temperature -40°C to +90°C, Maximum Working Pressure 0.255 bar, Norres