Photo 1 of PATIKIL 6 Inch to 4 Inch Round Duct Reducer Increaser Connector, 2 Pcs Galvanized Steel Air Duct Adapter Pipe Fitting for Bathroom Kitchen Inline Ventilation Systems, Silver Tone

Double tap image to zoom

Photo 1 of PATIKIL 6 Inch to 4 Inch Round Duct Reducer Increaser Connector, 2 Pcs Galvanized Steel Air Duct Adapter Pipe Fitting for Bathroom Kitchen Inline Ventilation Systems, Silver TonePhoto 2 of PATIKIL 6 Inch to 4 Inch Round Duct Reducer Increaser Connector, 2 Pcs Galvanized Steel Air Duct Adapter Pipe Fitting for Bathroom Kitchen Inline Ventilation Systems, Silver Tone