QF Reducer

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Reducers to transition QF® ducting into a smaller size

Nordfab® QF® Reducers provide an easy transition from one diameter of QF® duct pipe or fitting to a smaller diameter.

They are available in 3" - 24" diameters and come standard with QF® rolled ends. However, several configurations aren't available as the B diameter can not be bigger than the A diameter. When ordering, specify dimensions of both A and B ends. For help calculating what you need, Contact Us.

To transition air from a machine or hood to a duct, see the QF® Transition Rectangular to Round

Product Features

  • 3" - 24" diameters
    • B diameter can't be bigger than A diameter
  • Transitions ducting into smaller size
  • QF® rolled ends
  • Quick, simple assembly



  • 5
    Close to perfect

    Posted by Greever on Aug 5th 2018

    This product is going to take care a huge problem for me . The time to order was fast compared to all the information the other company wanted . They are very good about the tracking number. The order went through very fast . I am glad I took my problem to BISCO.