12" Mobile Home Insulated Foil Flex Duct R4.2 25'

25' of 12" diameter mobile home flex foil duct. This will either be Atco or Gray Flex brand flex depending on what we have in stock. Air-tight Inner Core - Energy efficient / No fiberglass erosion into air stream. Encapsulated Wire Helix - No unraveling when cut to length / Quick installation Smooth Inner Core - Low friction loss / Low operating cost. Thick Blanket of Fiberglass Insulation - Energy efficient / Excellent thermal characteristics Black, Heavy-Duty Polyethylene Jacket - Tear and puncture resistant / Low maintenance. Lightweight Compact Carton - Reduces warehouse and Jobsite handling cost.