Hercules stocks full line of adjustable elbows, from 3" to 24", available in residential standard gauge, 26 or 24 gauge galvanized. These versatile fittings feature a four section, three gore design which allows for maximum flexibility and can achieve virtually any degree of offset necessary. Residential gauge available in diameters 3" thru 12".  Used in round exhaust air duct systems for dryers, exhaust fans and range hoods that need turns through 90 degrees and are simple to adjust. Can be used for remodeling, do it yourself & new residential projects.