Atco 070, 076 and 078 are UL 181, Class 1 air ducts and are manufactured with a tri-directional fiberglass scrim reinforced, gray polyester outer jacket. A double lamination of tough polyester which encapsulates a steel wire helix forms the air-tight inner core of the Atco 070, 076 and 078. The double layer core of each product is wrapped with a thick blanket of fiberglass insulation. The inner core of all three products is air-tight and designed for low to medium operating pressures in HVAC systems. Atco 076 and 078 have increased insulation for superior thermal performance.
Atco Insulated Flexible Duct, 25 ft Length, 7 in Diameter, 6 in-WG, Polyester, Gray, R-Value: R-8, 5000 fpm Velocity Rating, -20 to 140 deg F, 0.6 perm Vapor Transmission
ColorGray
Diameter7 in
Length25 ft
MaterialPolyester
Pressure Rating6 in-WG
R-ValueR-8
Series078 Series
Temperature Rating-20 to 140 deg F
Vapor Transmission0.6 perm
Velocity Rating5000 fpm
Air-tight inner core - energy efficient/no fiberglass erosion into air stream
Encapsulated wire helix no unraveling when cut to length, quick installation