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3-1/4 x 10 in to round transition.
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For standard 3-1/4 x 10 in duct, 90 deg short way.
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3-1/4 x 10 in to round transition.
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3-1/4 x 10 in to round transition.
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Painted steel round 7 in collar with damper, (use with QZ, DS and AV Series).
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For standard 3-1/4 x 10 in duct.
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Estimates