SEAL360 Magnetic Vent Covers (3-Pack), Pockets for Complete Seal, 5.5" X 12" (White) for Floor, Wall, or Ceiling Vents and Air Registers, for RV, Home HVAC and AC Vents, Vent Not Included

SEAL360 Magnetic Vent Covers (3-Pack), Pockets for Complete Seal, 5.5" X 12" (White) for Floor, Wall, or Ceiling Vents and Air Registers, for RV, Home HVAC and AC Vents, Vent Not Included

• BOOST air to the rooms you need it
• BLOCK air in unoccupied rooms
• SAVE MONEY- heat and cool only the rooms you use
• NO AIR GAPS- The only cover that conforms to the vent damper creating a COMPLETE SEAL
• WARNING Not all metal vents are magnetic. Not for aluminum or high fin vents. See listing pic 7 for details