KM 4.2 4X25FT INSULATED FLEX
Product Details
Attributes
ECCO Manufacturing™ Insulated Flex-Vent Air Duct, 25 ft Length, 4 in Diameter, 0.5 in-WC, 10 in-WC, Fiberglass/Polyester, R-Value: R4.2, R6, R8, 5000 fpm Velocity Rating, -20 to 200 deg F
Strong polyester film laminated and encapsulating a heavy, corrosion-resistant steel wire helix, forms the inner core and supports a thick blanket of fiberglass insulation. The outer vapor barrier is a new bi-directional reinforced metallized vapor barrier which will not unravel. The smooth airtight inner core of polyester is designed for low to medium pressure systems.
Product Details
ECCO Manufacturing™ Insulated Flex-Vent Air Duct, 25 ft Length, 4 in Diameter, 0.5 in-WC, 10 in-WC, Fiberglass/Polyester, R-Value: R4.2, R6, R8, 5000 fpm Velocity Rating, -20 to 200 deg F
Strong polyester film laminated and encapsulating a heavy, corrosion-resistant steel wire helix, forms the inner core and supports a thick blanket of fiberglass insulation. The outer vapor barrier is a new bi-directional reinforced metallized vapor barrier which will not unravel. The smooth airtight inner core of polyester is designed for low to medium pressure systems.