USD 100, HVAC Duct Fittings | Elbows, Reducers & Transitions

A complete HVAC duct fitting catalog covers every connection scenario your system needs: 45° and 90° elbows in round and square profiles, conical reducers for stepping down between diameters, spin-in taps for adding branch connections to spiral or round trunk lines, flex connectors for isolating air handler vibration, end caps for terminating runs, and square-to-round transitions for connecting rectangular trunks to round branches. A duct system is only as tight as its weakest fitting, so every piece is fabricated to SMACNA standards using the same gauge sheet metal and seam construction as our duct sections — meaning consistent sizing, compatible gauges, and joints that seal without excessive tape or mastic. Available in galvanized steel, aluminum, or stainless steel, with custom sizing available for non-standard configurations. Precision-fabricated HVAC duct fittings, engineered to complete your system, only from Duct2Go. Shop now at https://duct2go.com/collect ...