High temperature heater duct for direct fired heater. Steel wire reinforced industrial ducting designed to perform -60 to 380 degree F. Fabric is flame resistant in accordance to UP94VTM-O testing methods. White with white heavy duty PVC wear strip, 6" pitch, soft cuff with integral screw clamp entry end (lined with 5' of silicone duct) and wire rope coupling exit end. Made of canvas. Measures 18" diameter by 25' length.