Quietflex manufactures flexible duct for the commercial, residential and manufactured home industries. As a compliment to duct we also produce uninsulated air connector in 3 in through 20 in. Installation Notes: Not to be installed in lengths greater than 14 ft. Not to be used to vent appliances for cooling, heating and clothes drying unless approved and recommended by appliance manufacturer.

Quietflex® Uninsulated Flexible Air Connector, Series: 6 Series, Round Vent Duct Shape, 10 in-WC Pressure, Aluminum Foil/Polyester, 3 in Diameter, 25 ft Length, -20 to 180 deg F

• Oversized core to fit on collars and register boxes
• Two layers of film encapsulate a galvanized or bronze coated wire helix

• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/Quietflex_306_Specification_Sheet.pdf