Very flexible polyurethane hose with crush resistant galvanised reinforcement spiral. 
Can be earthed. 
Smooth inside surface. 
Excellent mechanical characteristics, five times more resistant than traditional PVC to abrasion, salt and fresh water, most solvents and pure mineral oils, alcohol free petrol and bad weather conditions. 
Non-toxic, high quality PVC hose in accordance with Italian standards DM 21/3/73 and Reg. UE 10/2011, 2007/19 sim. A.B.C. and subsequent updates.
Temperature range: -40°C +90°C.
Applications: extraction of dust, shavings and highly abrasive materials. Excellent for extracting solvent and chemical vapours. 
UV ray resistant, self-extinguishing according to UL 94 regulation class V2.
Colour: transparent with copper plated spiral.