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The Aprilaire 5546 8" Living Space Duct Kit includes:

• 25 Ft. Insulated Flex Duct
• 2 Quick-Install Grilles
• 2 Reducers

The 5546 Duct Kit is compatible with the following Aprilaire Whole-House Dehumidifiers: 1710A, 1750A, 1770A, 1830, 1850, 1850F, 1850W, and new E-Series Models with 8" ducting collars.