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This is a white insulated cover that sticks magnetically over wall or ceiling HVAC registers to stop drafts and heat loss when the vent is not in use. It fits three common register sizes in one unit, and the magnets unscrew and reposition so you can match the anchor points on your vent. It is aimed at homeowners with aluminum registers who want to cut winter drafts from central air vents without tools or permanent changes. Compared with plain magnetic vent covers, it adds an insulation sheet and adjustable anchors, though it is a passive cover with no airflow control or smart features.
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Lowest price we've seen: $26.99 on Nov 11 at The Home Depot. Tracked across 1 store since Nov 11.
Buyers say it installs easily and noticeably stops the draft coming from air conditioning vents.
This insulated magnetic vent cover blocks wall and ceiling registers when they are not in use. It creates a barrier around the register to reduce heat loss and cold drafts, for example in winter when the central air conditioner is not running. It can also redirect airflow from room to room.
One cover fits three vent sizes: 9" x 9", 11" x 11" and 13" x 13". It is made for the aluminum registers and vents common in residential homes. The magnets unscrew, so you can reposition them to match your vent size.
It attaches magnetically to the four steel screws on the vent and needs no tools.
