2 PCS 4 Inch Stainless Steel Air Vents Round Black Soffit Vent Cover Air Vent Flat Ducting Air Outlet with Built-in Fine Mesh for Kitchen, Bathroom, Garage, Office and Warehouse Ventilation

OGANAZI 2 PCS 4 Inch Stainless Steel Air Vents Round Black Soffit Vent Cover Air Vent Flat Ducting Air Outlet with Built-in Fine Mesh for Kitchen, Bathroom, Garage, Office and Warehouse Ventilation

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust