About This

Flexible Pvc Ducting: Applied hard-wearing, flexible vinyl woven polyester with carbon wire spring and adhesive tape, smooth inside wall. Designed to be super flexible and flame-retardant.
High Performance: The duct' mouth size is 4 inch with length: 7.6 m (25 ft), binging the lightweight duct hose a large cability and high woking efficiency.
Durable : Thickest fabric on the market 0.35mm， flame retardant and withstands -20° to 180°F temperatures
Reinforced Design: Wear resistant professional industrial adhesive tape and thickened high carbon wire spring ensure rings to be practical and durable.
Wide Application: Our heavy duty 4 inch duct designed for ventilation applications including exhaust fan and vent exhausts in factories, basements, farms, tunnel, automobile manufacturing, ect.