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6 Inch Air Duct, HG Power 16 FT Flexible Dryer Vent Hose with 2 Clamps, Three Layer Noise Reducer Aluminum Ducting for D 6 Inch Duct: The HG POWER flexible vent hose is 6 inch in inner diameter, the outer diameter measures 6.3 inch, and comeHon&Guan 
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