Duct2Go carries: round 45° and 90° elbows, round conical reducers, round conical takeoffs, spin-in taps, round pipe couplings, round pipe end caps, round flex connections, rectangular straight tap takeoffs, rectangular duct end caps, square 45° and 90° elbows, square flex connections, and square-to-round transitions. All are available in galvanized steel; aluminum and stainless steel available on request.

A spin-in tap (also called a spin-in fitting or saddle tap) is used to add a branch supply connection to an existing spiral or round trunk duct without cutting out a full section. You drill a hole in the duct wall and insert the spin-in fitting, which locks in place with a quarter-turn. It is the standard method for adding register drops to a spiral trunk line and is particularly useful on retrofit and remodeling projects.

A conical reducer changes diameter within a round duct run — for example, stepping from a 12" trunk down to an 8" branch. A square-to-round transition changes shape — converting a rectangular duct outlet to a round duct inlet. Both are available at Duct2Go in standard sizes and custom configurations.

Yes. All Duct2Go fittings are dimensioned to SMACNA standards, which means they are compatible with standard duct sections from any manufacturer. Confirm the nominal diameter and gauge match when mixing fittings with duct from another source and the connections will be correct.

Absolutely. Custom fittings are a core part of our service. Unusual angles, oversized reducers, transitions between non-standard dimensions — if you can describe or sketch it, we can fabricate it. Submit your specs through the custom quote form and receive a price within one business day.