5" x 12" Magnetic Vent Blockers - Plain

1 pack of 2pc. Magnetic Vent Blockers

Magnetic Vent Blockers

Helps to reduce your fuel bills

For heating or cooling systems. Simple to use, just place the magnetic blockers over the metal vents of unused rooms to block airflow by over 99% and direct air to the rooms you use frequently. These vent blockers can be cut to different sizes with scissors and can painted, texturized or wallpapered.