The magnetic side of this product only works with steel material, does not perform with aluminum, plastic, or wood. Please have a test with a magnet before application.
Made with strong anisotropic magnet of ultra thick 1.5mm, the magnetic air vent cover sticks to your floor/ceiling/wall vents tightly, no slipping.
vent cover can lower your energy cost by not heating or cooling unused spaces.
Cut to any size by scissors or cutters to fit your vent.
Can be used for homes, RVs, HAVC units, and furnace vents. It also sticks to the ceiling vents nicely without ever falling off.
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