Flexible Duct
Flexible duct insulated
Flexible duct insulated: Flexible duct insulated metalized. The inner core is double laminated metalized polyester film that is permanently attached to a corrosion resistant steel wire helix
Flexible duct uninsulated
Flexible duct uninsulated: Flexible duct uninsulated aluminum metalized without insulation layer. It is composed of a triple laminated aluminum foil, film that is permanently attached to a corrosion resistant steel wire helix.