Hi-Velocity 20022120010 Fiberglass Flex Duct, 2 in x 10 ft L, R8.4, Fiberglass, Galvanized Steel, Polyester

Item Features

• Hi-Velocity Flexible Duct can be installed quickly and easily, delivering the air quietly with a sound absorbing inner core. The inner core is made of a double lamination of foil laminate and clear polyester film which is interlaced with a galvanized steel wire (.041) having a 3/4 in pitch.
• The core is wrapped with fiberglass insulation certified GREENGUARD having a coefficient of R4.2/R8.4 and is encapsulated by a metalized vapor barrier reinforced with fiberglass string.
• Maximum Flame Spread 25, maximum Smoke Developed 50 Burning Character
• 5000 FPM Air Velocity
• Carton of 2