14” Blue Flex R8

14” Blue Flex R8 is an insulated flexible air duct used in HVAC systems. The 14" Blue Flex R8 is typically a 25-foot long section of insulated flexible ductwork for heating, ventilation, and air conditioning (HVAC) systems.

• Diameter: 14 inches.
• Length: Generally comes in a 25 ft bag or box.
• R-value: R8 thermal insulation value, which provides greater thermal efficiency and energy savings compared to lower R-values.
• Jacket Material: A blue jacket made of a metallized polyester vapor barrier, often with "rip-stop" scrim reinforcement to resist tearing.
• Core Material: An inner core made of multiple layers of polyester film encapsulating a heavy, corrosion-resistant spring steel helix, designed not to unravel when cut.
• Antimicrobial Properties: Many "Blue Flex" R8 ducts, such as the Quietflex AMG Flex, feature an antimicrobial coating on the inner core (often Agion-based technology) to inhibit the growth of bacteria, mold, and mildew.
• Certifications: UL Listed/Approved to UL 181 Standard (Class 1 Air Duct), NFPA standards 90A and 90B, and GREENGUARD certified for indoor air quality.
• Application: Used in low to medium pressure HVAC systems for supply and return air.