Photo 1 of PATIKIL 4" Duct Connector Flange, Galvanized Air Ducting Mounting Plate Dryer Vent Chimney Top Plate Square to Round for Heating Cooling Ventilation HVAC Exhaust Fan Vent Systems, 6"x6"

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Photo 1 of PATIKIL 4" Duct Connector Flange, Galvanized Air Ducting Mounting Plate Dryer Vent Chimney Top Plate Square to Round for Heating Cooling Ventilation HVAC Exhaust Fan Vent Systems, 6"x6"Photo 2 of PATIKIL 4" Duct Connector Flange, Galvanized Air Ducting Mounting Plate Dryer Vent Chimney Top Plate Square to Round for Heating Cooling Ventilation HVAC Exhaust Fan Vent Systems, 6"x6"