Photo 1 of Duct Reducer 6 to 4 inch Air Duct Adapter HAVC Pipe Connector for Inline Ventilation System (150mm to 100mm)

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Photo 1 of Duct Reducer 6 to 4 inch Air Duct Adapter HAVC Pipe Connector for Inline Ventilation System (150mm to 100mm)Photo 2 of Duct Reducer 6 to 4 inch Air Duct Adapter HAVC Pipe Connector for Inline Ventilation System (150mm to 100mm)