Ducting constructed of vinyl polyester with internal steel-reinforced wire hoop. Diameter is 8" with external wear strips and 6" long attachment cuffs. Maximum temperature rating 180° F. Both standard and conductive ventilation ducting is available in a variety of lengths. Standard ducting features 8 3/8" "bell" cuff and buckle on both ends. Conductive ducting features ground wires on each end of helix. Duct carrier is polyethylene construction with a large carry handle and holds 50' of 8" ducting. A variety of other ventilation accessories are available.