Air duct consisting of a layer of aluminized polyester film and one layer of polyester film encapsulating a galvanized steel wire helix, a fiberglass insulation blanket rated R4,2 and an aluminized vapor barrier reinforced with tri-directional fiberglass scrim.
Diameter : 4 to 18 inches
R FACTOR : R4,2
Meets c-UL-us standard : Air duct
Complies with NFPA : 90A & 90B
GREENGUARD certifications GREENGUARD GOLD & GREENGUARD
FMD spec sheet
GREENGUARD information https://spot.ulprospector.com/en/na/BuiltEnvironment
GREENGUARD CERTIFICAT 91373-410
GREENGUARD GOLD CERTIFICAT 91373-420