Industrial Ducting Hose, Hose Inside Dia. 4 in, Hose Length 25 ft, Hose Tube Material PVC, Hose Reinforcement Type Helix, Hose Reinforcement Material PVC, Hose Color Black, Clear, Vacuum Rating 3.00 in Hg, Max. Working Pressure @ 70 F 6 psi, Temp. Range -20 Degrees to 150 Degrees F, Bend Radius 3.1 in