Industrial Ducting Hose, Hose Inside Dia. 4 in, Hose Length 25 ft, Hose Tube Material Neoprene, Hose Reinforcement Type Helix, Hose Reinforcement Material Fiber, Hose Color Black, Vacuum Rating 25.00 in Hg, Max. Working Pressure @ 70 F 18 psi, Temp....