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Damper Showdown - Round Dampers vs. Transition Collars
Which works better for a spiral duct: a round damper or a square damper with a transition collar? Learn more about these options on the MCDLG Newsstand.
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Transitions
Round Control Dampers for Spiral Ducts
In this article, we review the many types of round dampers and how they work. You have options for your spiral ducts!