Europlast18″ x 4'' Two Sided Door Air Vent Cover - Door Vents for Interior Doors and Furniture - Brown Plastic Vent Grill Door Cover - Ventilation Grill

450x92mm / 18x4 inch Brown Bathroom Door Air Vent Grille Two Sided Ventilation Cover for Restroom, Warehouse, Storage Doors | Interior Door Transfer Grill

TUPARKA 4 Pack Large Size Metal Hose Clips 91-114 mm Adjustable Ducting Clamps for Securing Hoses and Pipes Tube

LOOTICH Sturdy 4 Inch 8 Feet Non-Insulated Flex Air Aluminum Ducting Vent Hose for HVAC Ventilation 2 Stainless Steel Clamps Included