Flex Duct, 6"x25' R6.0 Insulated Metal Poly Bagged
Gray Flex's models 4GF(R-4.2), 4GF-6(R-6.0) and 4GF-8(R-8.0) are tested in accordance with UL 181 and approved for use as a Class 1 air duct material. Jacketing is printed with certification label, foot markers, size and performance data every 24 in (Foot markers every 12 in). It is jacketed with a scrim reinforced metalized polyester vapor barrier. The airtight core is our exclusive patented, reinforced inner liner. Fiberglass insulation is a minimum of 1-1/4 in THK for 4GF, minimum of 2 in for 4GF-6 and minimum of 2-5/8 in for 4GF-8.
Quality Flex Insulated Foil Flex Duct, 4GF-6 Model, 25 ft Length, Metallized Polyester, 6 R-Value, 5500 fpm Velocity Rating, -20 to 250 deg F, 0.1 to 0.3 perm Vapor Transmission
|Temperature Rating||:||-20 to 250 deg F|