4 in. X 25 ft. R6 Flexible Duct Fiberglass, grey polyester outer jacket.

Manufacturer Item Data
Installation & Operation Guide
MSDS Sheet

• 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 Grey 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