Ventilation ducting is made of wire-reinforced yellow vinyl polyester and includes cuff with an attachment belt. Both the 8” and 16”-diameter ducting are available in lengths 15' and 25'. Duct-To-Duct Connector ( 8” or 16”) allows safe connection of additional ducting for remote locations, this connector is constructed of galvanized steel with a raised lip to hold ducting in place. For easy storage and transportation. Coated nylon bag with cylinder shape for tight controlled fit will hold 12" or 16" duct, up to 25'. Features double zipper for ease of access, reinforced carry handle and shoulder strap. Store ducting conveniently and efficiently on a ducting storage rack for 8” or 16”-diameters. Adapter reduces 16" blower output to 8" duct. For use with 9515 blower. Includes duct-to-duct connector. (Use of adaptor will reduce CFM by up to 15%.) Sold by the each.