Will these work on plastic or aluminum vents?

No. The cover holds by magnetism, so it needs a steel or iron vent frame. Aluminum and plastic registers won't hold it.

Can I cut them to fit a smaller vent?

Yes. The magnetic sheet can be trimmed with household scissors to fit odd sizes, though cutting removes some of the finished edge.

Do they block airflow completely?

They seal the vent opening well, but some air can still escape around the edges. They are meant to redirect most of the airflow, not create a perfect seal.

Can I use them on return vents?

You can, but blocking a return can strain the system. They are best used on supply vents in rooms you want to cool or heat less.

How do I remove them?

Lift a corner and peel the cover off. The magnet releases from the vent frame without tools or residue.

Three magnetic vent covers sized 7.5 by 12 inches in dark brown.

SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack)

Best price now

$33.03at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack)

Best price now

$33.03at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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Price facts

Last seen at $33.03 at Walmart on Nov 11.

Our take on the SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack)

SEAL360 vent covers are thin magnetic sheets that seal off floor, wall or ceiling registers to redirect airflow. Their pocketed design lets the magnetic perimeter sit flat around raised louvers and damper tabs, where flat magnetic sheets tend to lift and leak. They suit anyone closing off a room's supply vent for the season or balancing airflow between rooms. Against plain flat magnet covers, the pockets and thicker perimeter are the main difference; owners rate them highly for staying put and sealing well.

Best forClosing off unused rooms' supply ventsBalancing airflow between roomsRenters who can't change ductworkHomes with louvered or damped registers

Pros

Pocketed design clears raised louvers and damper tabs
Magnetic perimeter holds firmly to the vent frame
Seals the gap flat covers leave, so less air leaks
Trims with scissors to fit odd vent sizes
Removes and repositions without tools

Cons

Only grips ferrous metal vents, not aluminum or plastic
Pockets add bulk that can sit proud of flush registers
Brown finish may not match every vent or floor
Not for return vents you want to keep open

SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack) prices at every store

WalmartNew
In stockSold by Hivewize DesignsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$33.03Free shippingChecked Nov 11
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What reviewers say

4.9 / 5412 ratings

Owners rate these very highly, mostly for sealing vents that flat magnetic sheets couldn't close. The pocketed shape and strong hold come up again and again.

What people mention

Magnet strengthPraisedOwners say the magnetic perimeter grips the vent frame firmly and doesn't slide off.
Pocketed fitPraisedReviewers like that the pockets clear raised louvers and damper tabs so the cover sits flat.
Air sealingPraisedUsers report a clear drop in airflow to closed rooms compared with flat covers.
Vent compatibilityCriticisedSome buyers found they don't stick to aluminum or plastic registers.
BulkMixedA few note the pockets make the cover sit slightly proud on flush vents.

About the SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack)

Each cover has a thick magnetic perimeter that bonds to the solid parts of the vent.

The covers have pockets that fit over protruding vent features. This lets the cover sit against the vent and helps avoid an air gap, which can happen with thin flat magnets or stiff thick ones.

Size: 7.5" x 12"
Color: Dark Brown
Design: Thick magnetic perimeter with pockets for vent protrusions
Quantity: 3 covers

Specifications

size: 7.5" x 12"Source
actual_color: Dark BrownSource
color: BrownSource

Questions and answers

Will these work on plastic or aluminum vents?: No. The cover holds by magnetism, so it needs a steel or iron vent frame. Aluminum and plastic registers won't hold it.
Can I cut them to fit a smaller vent?: Yes. The magnetic sheet can be trimmed with household scissors to fit odd sizes, though cutting removes some of the finished edge.
Do they block airflow completely?: They seal the vent opening well, but some air can still escape around the edges. They are meant to redirect most of the airflow, not create a perfect seal.
Can I use them on return vents?: You can, but blocking a return can strain the system. They are best used on supply vents in rooms you want to cool or heat less.
How do I remove them?: Lift a corner and peel the cover off. The magnet releases from the vent frame without tools or residue.
What's in the pack?: Three magnetic vent covers sized 7.5 by 12 inches in dark brown.
Where is the SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack) cheapest?: At Walmart, for $33.03, as of our latest check.
What do buyers say about the SEAL360 Strong Magnetic Vent Covers, Pocketed Design, 7.5" x 12" (Brown, 3-Pack)?: Rated 4.9 out of 5 from 412 ratings.

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