Ducting Hose, Hose Inside Dia. 3 in, Hose Length 12 ft, Hose Tube Material Fiberglass Silicone, Hose Reinforcement Type Helix, Hose Reinforcement Material Steel Wire, Hose Color Red, Vacuum Rating 29 Hg, Max. Working Pressure @ 70 F 30 psi, Temp. Range -65 Degrees to 550 Degrees F, Bend Radius 2.5 in