Photo 1 of PATIKIL 6 Inch Duct Collar, 1 Pcs Duct Connector Flange Galvanized Iron Tight Vent Air Duct Fitting for Heating Cooling HVAC Ventilation Home Office

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Photo 1 of PATIKIL 6 Inch Duct Collar, 1 Pcs Duct Connector Flange Galvanized Iron Tight Vent Air Duct Fitting for Heating Cooling HVAC Ventilation Home OfficePhoto 2 of PATIKIL 6 Inch Duct Collar, 1 Pcs Duct Connector Flange Galvanized Iron Tight Vent Air Duct Fitting for Heating Cooling HVAC Ventilation Home Office