“what size diameter duct is required for outside venting?”

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• From the microwave it's 3.25" x 10". Use an adapter to 3.25" round to go through the roof.

  Answered by jmrr 4 years ago

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• 3.25" x 10"

  Answered by jmrr 4 years ago

  • Verified Purchase
  • 

  Helpful (1)Unhelpful (0)

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