HVAC > HVAC Fittings & Materials > Duct > Flexible Duct > Flexible Air Duct > Hart & Cooley > Insulated Flex Air Duct, Grey 2-Ply Polyester Jacket > Insulated Flex Air Duct, Grey 2-Ply Polyester Jacket, F116
Features:
· Black polyethylene jacket
· Double-ply black polyester core
· UL listed
· GREENGUARD Level 4 highly microbial resistant
· Rated maximum air velocity 5000 FPM
Vapor Barrier
· A durable black polyethylene vapor barrier
· Perm rating of 0.1 perms when measured per ASTM E96, Method A
Surface Burning Characteristics
· Flame Spread: Less than 25
· Smoke Developed : Less than 50