Type FIAP R4,2
Air duct consisting of a foil laminate and tough polyester film encapsulating a galvanized steel wire helix, a fiberglass insulation blanket rated R4,2 and a black polyester vapor barrier reinforced with tri-directional fiberglass scrim.
Diameter : 4 to 18 inches
Length: 25 feet
R-value: R4,2
Meets the c-UL-us S-110 Air duct class 1 standard
Complies with NFPA standard 90A and 90B
GREENGUARD information Certification GREENGUARD | UL Solutions