iPower 4 Inch ABS Round Air Soffit Vents Louver Grille Cover with Built-in Screen Mesh for Home Bathroom Office Kitchen Ventilation, 1-Pack, White

iPower 4 Inch ABS Round Air Soffit Vents Louver Grille Cover with Built-in Screen Mesh for Home Bathroom Office Kitchen Ventilation, 1-Pack, White

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