Unbranded 8 x 12 Inch Magnetic Air Vent Covers Strong Magnet Thick 60mil HVAC AC Floor Ceiling Wall Register Vent Covers 3 Pack

Provides airflow control for HVAC floor, ceiling, and wall registers to reduce energy loss in unoccupied rooms. Magnetic design for steel vents only ensures secure attachment. Includes 3 covers sized 8 x 12 in., 60 mil (1.5 mm) thick PVC with 650 Gauss magnetic strength. Rounded corners support flush fit on vent frames. Suitable for HVAC, AC, heater vents, RVs, basements, and residential spaces. Tool-free installation. Includes 30-day warranty.