7" Insulated Foil Flex Duct R6 25'

25' of insulated foil flex duct.  This will either be Atco or Gray Flex brand flex depending on what we have in stock. 7" Diameter 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  Highly Resistant to Mold Growth – Tested and Listed to UL Environment’s Standard UL 2824  Certified for Low Chemical Emissions – Tested and Certified to UL Environment’s Standard UL 2818  Certified Thermal Performance (R-values) – UL Classified to Air Diffusion Council test program  Tough Reinforced Metallized Polyester Jacket – Tear and puncture resistant / Low maintenance  Lightweight Compact Carton/Bag – Reduces warehouse and jobsite handling cost  Formaldehyde Free – Made with Owens Corning EcoTouch Insulation