Vent Cover - for Steel Vents Only (5" x 12") Magnetic by StauberBest

Description The STAUBER Best Vent Cover uses a unique, innovative design to provide the most powerful, energy-efficient way to cover your vents. It works on floors, walls, and even ceilings! It mounts to any steel vent using 6 strong magnets. Just make sure your vents are magnetic before purchasing! Test them with a magnet you already own. Some vents are made from aluminum or plastic and are not magnetic! Features BEFORE PURCHASING: Check if your vent is magnetic! Will not work on Plastic or Aluminum vents! Use a magnet you already own to check if your vent is magnetic. Holds firmly to steel vents with 6 strong magnets. Works on floor, wall, or even ceiling! High R-Value foam insulation provides an effective thermal barrier.