Photo 1 of Dunzy Duct Reducer 6 to 4 Inch Ducting Connector Duct Adapter Air Ducting Reducer Increaser Round Air Duct Reducer Galvanized Steel Air Duct Adapter for Bathroom Kitchen Inline Ventilation (2 Pcs)

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Photo 1 of Dunzy Duct Reducer 6 to 4 Inch Ducting Connector Duct Adapter Air Ducting Reducer Increaser Round Air Duct Reducer Galvanized Steel Air Duct Adapter for Bathroom Kitchen Inline Ventilation (2 Pcs)Photo 2 of Dunzy Duct Reducer 6 to 4 Inch Ducting Connector Duct Adapter Air Ducting Reducer Increaser Round Air Duct Reducer Galvanized Steel Air Duct Adapter for Bathroom Kitchen Inline Ventilation (2 Pcs)