Fabriflex Type 3T

This reliable high-pressure insulated air duct, Fab 3T is made of a reinforced aluminized trilaminate spirally wound and mechanically locked together by a corrosive resistant galvanized steel helix. The core is wrapped with thick fiberglass insulation and sleeved by a flame retardant, non-toxic polyethylene vapour barrier. This high pressure UL-181 Class 1 product is excellent for most return air systems.