THE WHITE SHOP6 Inch Soffit Vent, Round Air Vent Cover with Louver, ABS Adjustable Ceiling Vent Covers for Living Room, Bathroom, Kitchen, Greenhouse, Ventilation System

THE WHITE SHOP ABS Air Vent, Adjustable Round Exhaust Louver Grille Air Ventilation Cover Duct Fan Outlet Vent Soffit Air Vent for House Bathroom Kitchen Ventilation (Size : 6INCH)

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

Luomorgo 110mm/4.33 inch Hole Saw, 1.46 inch Cutting Depth HSS Bi-Metal Hole Cutter for Wood Boards Plastic Drywall & Metal Sheet