R4 Insulated Flex Duct
R4 Insulated Flex Duct x 25ft.
For heating, air conditioning and ventilation. Features 3/8″ over sized inner core made of polyester film. 25′ lengths packed in short 21″ box for easy handling. Other types available by special order. Jacket: Black Poly.
18″ and 20″ available upon quote request.
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