QF Transition Rectangular to Round

Nordfab feature a round Quick-Fit® (QF®) or flanged end and a square or rectangular end for transitioning from round to rectangular ductwork or for use as a hood for local source capture.

When ordering, specify material, gauge (if non-standard), round end ø, square end H, and W dimensions, and end styles. Also specify desired length.

• Length must be at least 75% of W or transition will be Square to Square.
• Length of Square to Round (at least 7" minimum).
• Length of Square to Square (4" minimum).

• Available in Galvanized and 304SS or optional 316SS or carbon steel
• Available with flanged ends in diameters up to 72", and other various end types
• Optional gauges 22, 20, 18, 16, 14, 12 and 10
• Eccentric construction available

Contact Nordfab or your local Nordfab dealer for assistance with larger sizes and material / gauge options.

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Download our Transitions Product Data sheet for additional information.

Download our Rectangular to Round Transition Styles form to specify the product you wish to order.

Learn more about the broad range of rectangular to round transitions and hood types available from Nordfab.

Get in touch

Contact Nordfab Americas