Description
Your machine drops tie into the main here. Pick the inlet size, the outlet size, the branch size and the angle. 30° is Nordfab's standard, 45° is optional.
What you get
- Standard gauge is 22ga for 3 in. to 12 in. and 20ga for 13 in. to 24 in.
- Longitudinal seam lapped, spot welded and caulked on standard gauges
- Collars on the outside of each port
- Galvanized is ASTM A653 G90 steel with a recommended max service temperature of 390°F. 304 stainless meets ASTM A240 and is rated to 1100°F.
Before you order
- Quick-Fit clamps are sold separately. Plan on one clamp per component in your order.
- Most branches also take a Quick-Fit Sleeve so the run lines up.
- Made in the USA by Nordfab in Thomasville, NC. Nordfab is ISO 9001:2015 and ISO 14001:2015 certified.
When this is not the right part for you
- Double branches, flanged ends and sizes over 24 in. are quote only.
- Planning a whole system rather than a few parts? Book a free assessment and talk to us about a custom system.
Specifications from the Nordfab Ducting Product Reference 2026.