4" Insulated (R4.2) Flex Duct 25'

FEATURES & BENEFITS

• Underwriters Laboratories listed to UL 181 and CUL S110 for the US and Canada.
• Complies with NFPA Standards 90A and 90B.
• Corrosion resistant steel wire helix.
• Fully lined for efficient air delivery.
• The outer vapor barrier is a jacket of fiberglass scrim reinforced metallized film laminate.
• Quality KM installations produce referrals that increase volume and profits.
• Available in 4.2, 6.0, and 8.0 thermal application values.
• Available in both box and bag packaging.
• GreenGuard® Gold Certified which is the industry's most recognized Indoor Air Quality (IAQ) rating.
• Made with Owens Corning™ EcoTouch® formaldehyde-free Insulation. Made with 99% natural materials and highest re-cycled content. Also, it is the only fiberglass insulation listed in the USDA BioPreferred Catalog.
• Available through broad national distribution.