Will it fit my window AC?

It is sized for 5000-12000 BTU window units, with a panel 16.5 inches high and 39 inches wide. Trim it to your gap with a knife.

Does the foil side face out or in?

Face the aluminum foil toward the hot side, typically outdoors, so it reflects radiant heat. The foam core does the insulating either way.

Can I remove it without damaging the window?

The adhesive backing holds it in place but is not meant for repeated peeling. For seasonal removal, press it in place lightly or use removable tape.

Is it better than plastic side panels?

It seals and insulates better than thin accordion panels and reflects heat. Plastic panels are more rigid and hold up longer to rain and sun.

Does it block insects and drafts?

Yes. Closed-cell foam fills the gap around the unit, which stops drafts, hot air and bugs from coming through.

It is 0.4 inch thick, thin enough to fit most window frames without stopping the window from closing.

NOBRAND

AC Window Seal Foam Panel with Aluminum Foil

Best price now

$50.98at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

NOBRAND

AC Window Seal Foam Panel with Aluminum Foil

Best price now

$50.98at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $50.98 at Walmart on Nov 11.

Our take on the AC Window Seal Foam Panel with Aluminum Foil

A closed-cell PEF foam panel with an aluminum foil face, cut to seal the gap around a window air conditioner. The foil surface reflects heat and the foam insulates, blocking hot outside air, drafts and insects from slipping past the unit. It suits renters and homeowners with 5000-12000 BTU window units who want a low-effort seal without cutting rigid board. Compared with plastic accordion side panels or foam board kits, it is softer, lighter and easier to trim, but less rigid and less weatherproof over many seasons.

Best forSealing gaps around a 5000-12000 BTU window ACRenters who want a removable, no-damage sealHot climates where reflected heat mattersQuick seasonal installs and swaps

Pros

Aluminum foil face reflects radiant heat
Closed-cell foam resists moisture and drafts
Adhesive backing simplifies fitting
Trims easily with a knife to odd window gaps
Light at 0.37 lb and works across a wide temperature range

Cons

Soft foam can compress and lose its seal over time
Foil surface can crease or tear during fitting
Not rigid, so it may sag in wide gaps
Single panel may not cover both sides of a large unit

AC Window Seal Foam Panel with Aluminum Foil prices at every store

WalmartNew
In stockSold by Yonghua YuReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$50.98Free shippingChecked Nov 11
Visit Walmart

About the AC Window Seal Foam Panel with Aluminum Foil

This foam panel seals the gap around a window air conditioner. It is made of PEF polyethylene closed-cell foam with an aluminum foil surface.

The panel has an adhesive backing for easy installation. It fits 5000-12000 BTU window air conditioners and works across a temperature range of -50°C to 120°C.

Material: PEF polyethylene closed-cell foam with aluminum foil surface
Dimensions: 16.5" (H) x 39" (W)
Thickness: 0.4"
Weight: 0.37 lb
Adhesive backing: Yes
Compatibility: 5000-12000 BTU window air conditioners
Temperature range: -50°C to 120°C
Thermal conductivity: 0.028 W/(m·K)

Specifications

color: RedSource

Questions and answers

Will it fit my window AC?: It is sized for 5000-12000 BTU window units, with a panel 16.5 inches high and 39 inches wide. Trim it to your gap with a knife.
Does the foil side face out or in?: Face the aluminum foil toward the hot side, typically outdoors, so it reflects radiant heat. The foam core does the insulating either way.
Can I remove it without damaging the window?: The adhesive backing holds it in place but is not meant for repeated peeling. For seasonal removal, press it in place lightly or use removable tape.
Is it better than plastic side panels?: It seals and insulates better than thin accordion panels and reflects heat. Plastic panels are more rigid and hold up longer to rain and sun.
Does it block insects and drafts?: Yes. Closed-cell foam fills the gap around the unit, which stops drafts, hot air and bugs from coming through.
How thick is it?: It is 0.4 inch thick, thin enough to fit most window frames without stopping the window from closing.
Where is the AC Window Seal Foam Panel with Aluminum Foil cheapest?: At Walmart, for $50.98, as of our latest check.

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