Industrial Ducting Hose, Hose Inside Dia. 4 in, Hose Length 50 ft, Hose Tube Material Polyurethane, Hose Reinforcement Type Helix, Hose Reinforcement Material Carbon Steel, Hose Color Clear, Vacuum Rating 20.00 in Hg, Max. Working Pressure @ 70 F 10 psi, Temp. Range -20 Degrees to 200 Degrees F, Bend Radius 4.5 in