6pcs Magnetic Vent Covers 5.5x12" - Ideal for Heating & Cooling Systems and Air Purifiers

Magnetic vent covers that work without power or tools. Each 5.5x12" cover uses strong magnets to seal heating, cooling, and air purifier vents instantly. Perfect for redirecting airflow, reducing energy waste, or blocking unused ducts. Set of 6 covers fits standard rectangular vents. Install in seconds—no drilling, adhesive, or electricity required. Ideal for seasonal adjustments, zone control, or temporary vent management in homes and offices.