UL 181 Class 1 Insulated Flexible Duct

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 at R6 and an aluminized vapor

barrier reinforced with tri-directional fiberglass scrim.

THIS DUCT MEETS OR EXCEEDS THE FOLLOWING:

• C-UL-US AIR DUCT ( UL US-181)

• Certified of low chemical emissions- Tested and certified to UL

environment’s standard UL 818

Temperature range

-20°F to 210°F (-30° to 100°C)