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3 3/8"
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  1. HVAC
    Hi. I'd like to move a couple of heating ducts in my unfinished basement. It seems pretty straightforward. However, the ducts measure 12" x 3 3/8". All of the pre-fab sections I've found are 12" x 3 1/4". Is this close enough? Am I measuring wrong? Will 3 1/4" sections work? Do I need a stock or...
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