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4 Inch Hydroponic Ducting
This lightweight insulating air duct is manufactured with a helically shaped internal crimped galvanized steel strip. The strip locks together with the aluminum foil in order to form an air tight and leak proof lock system. It ensures excellent strength, making it perfect as a flexible solution for a broad range of venting requirements from low or high pressure heating, as well as for ventilation to air conditioning application.
Standard Length: 25 feet
Minimum echoes possible
Self-supporting & corrosion resistant
Sliver outer shell for leaking proof
Completely flexible ducting for routine exhausting
Reinforced double-layer aluminum foil construction
Ideal for HVAC, bath and general ventilating applications