- Two-ply continuous inner core products, smooth interior for more efficient air movement
- Vapor barrier, durable and scuff-resistant jacket
- Zinc-coated, high-carbon steel wire Helix
- Thick, continuous blanket of glass fiber insulation
- Metalized single-strand fiberglass yarns for added strength and tear resistance
- Air Flow Rate: 4000 fpm
- Color: Silver
- Insulated/Non Insulated: Insulated
- Length: 25
- Material: Fiberglass
- Nominal Size: 6 in
- Outside Diameter: 6 in
- R-Value: R6
- Temperature Rating: -20 to 250 deg F