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Dundas Jafine INC34EZW is a plastic duct-to-duct increaser that transitions a 3 in duct to a 4 in duct for dryer and venting applications. The single-piece molded adapter measures approximately 4 x 4 x 3 inches and has an item weight of about 0.16 ounces. It joins differing round duct diameters to enable airflow transitions in dryer vents, bathroom exhausts, and similar HVAC connections.
3 in to 4 in plastic duct adapter for dryer vent and general ventilation connections
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