Type FIAC R4,2 Acoustic
Air duct consisting of two acoustically perforated laminates encapsulating a steel wire helix, a fiberglass insulation blanket rated R4,2 and a black polyester vapor barrier reinforced with tri-directional fiberglass scrim.
Also available with aluminized vapor barrier: Type FIACA
Diameter : 4 to 18 inches
Length : 25 feet
R-value: R4,2Meets the c-UL-us S-110 Air duct class 1 standard
Complies with NFPA standard 90A and 90BCertified GREENGUARD GOLD and GREENGUARD