This 4 inch diameter semi-rigid air duct is suitable for general air handling applications like exhaust venting, bathroom venting, range hoods, suspended ceilings and more. The metallic duct can be extended up to 8 feet in length and can be cut to size for specific venting applications. The semi-rigid transition duct is fire-resistant and it won’t collapse, sag or bunch up. Flexible enough for easy installation.

• • Be sure to clean ducts over time for optimal appliance performance
• • For multiple uses dryer, bathroom or kitchen venting
• • Semi-rigid but flexible for easy installation
• • Fire resistant and non-crimped
• • Can be cut to length of specific venting application
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