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440mm x 120mm / 18" x 5'' Inch Two Sided White Door Air Vent Grille - Door Vent Register for Interior Door, Bathroom, Bedroom, Garage, Kitchen - Amazon.com
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MroMax 7.87" x 1.97" (LxW) Air Vent Aluminum Alloy Square Ventilation Grille Cover 200mm x 50mm Rectangle Air Grille for Walls, Ceilings and HVAC Cabinets 1Pc - Amazon.com
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Engera Bathroom Door Air Vent Grille Two Sided Ventilation Cover for Restroom, Warehouse, Storage Doors | Interior Door Transfer Grill 453mm x 91mm (18.1"x3.6") - Amazon.com
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Door Louver Vent 300mm x 80mm, Two Sided Door Air Vent Grille, Door Vents for Interior Doors, Aluminum Door Vent Door Ventilation Grill - Walmart.com
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