Air duct consisting of a metalized polyester film & a polyester film encapsulating a galvanized steel wire helix, a fiberglass insulation rated R8 and a triax fiberglass scrim reinforced black polyester vapor barrier.

Diameter : 4 to 18 inches
R FACTOR : R8
Meets c-UL-us standard : Air duct
Complies with NFPA : 90A & 90B
GREENGUARD certification GREENGUARD GOLD GREENGUARD

SIM3 spec sheet 
GREENGUARD information https://spot.ulprospector.com/en/na/BuiltEnvironment
GREENGUARD CERTIFICAT 92475-410
GREENGUARD GOLD CERTIFICAT 92475-420

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