HVAC > HVAC Fittings & Materials > Duct > Flexible Duct > Flexible Air Duct > Hart & Cooley > Foil Flex Air Duct, Metalized Polyester Jacket > Foil Flex Air Duct, Metalized Polyester Jacket, F218
Features:
· Metalized polyester jacket reinforced with fiberglass scrim
· Double-ply black polyester core 12” W.C. positive, 3/4” W.C. negative (1/2” W.C. neg for 14” – 20” diameter)
· UL-listed
· GREENGUARD Level 4 highly microbial resistant
· Rated maximum air velocity 5000 FPM
Vapor Barrier
· Perm rating of 1.0 perms when measured per ASTM E96, Method A
Surface Burning Characteristics
· Flame Spread: Less than 25
· Smoke Developed : Less than 50