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Duck 2.25" x 2.25" x 42" Window Air Conditioner Insulating Seal, Black

Name: Duck 2.25" x 2.25" x 42" Window Air Conditioner Insulating Seal, Black
Brand: Duck Brand
SKU: 17133817
Price: 4.23 USD
Availability: InStock
Rating: 4.6 (502 reviews)

|502 ratings

Duck 2.25" x 2.25" x 42" Window Air Conditioner Insulating Seal, Black Duck 2 25 x 2 25 x 42 Window Air Conditioner Insulating Seal Black 2 pack Duck 2 25 x 2 25 x 42 Window Air Conditioner Insulating Seal Black

Pack Size:Single

Key item features

Insulating Foam: This product is an insulating foam seal designed to improve the efficiency of window air conditioning units.
Easy Installation: The seal offers an easy installation process, allowing for quick setup with window A/C units.
Gap Sealing: It effectively closes gaps between the window A/C unit and the window frame, preventing outside air, dust, insects, and pollen from entering.
Enhanced Comfort: By sealing gaps, it helps keep cool air in and warm air out, while also reducing noise and vibration.
Product Dimensions: The seal measures 2.25 inches by 2.25 inches by 42 inches and weighs 0.140 pounds.
Brand Compatibility: Manufactured by Duck, this seal can be used with other Duck Brand weatherization products for comprehensive home energy efficiency.

Generated by AI

Specs

Size
2.25" x 2.25" x 42"
Insulation thickness
2.25 in
Material
Foam
Features
Easy Installation
Color
Black
Assembled product weight
0.14 lb

Reviews summary

Pros

: Offers cost-effective solution for sealing gaps.
: Simple installation and operation.
: Quick setup with minimal effort.
: Made of thick material that effectively seals air gaps.
: Forms a precise seal around the ac unit.

Neutral

: Can be effective at blocking hot air, but may have seal inconsistencies.

Generated by AI

Current price is $4.23

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About this item

Product details

Window air conditioning units can provide added comfort in the hot summer months, but can also create a gap that lets in outside air, dust, insects and pollen. Duck Brand Air Conditioner Insulating Seals are easy-to-install foam seals that close the gaps between the window A/C unit and window frame. In addition to keeping the cool air in and warm air out, they reduce noise and vibration while blocking unwanted dust, insects and pollen from entering your home. Use together with other Duck Brand weatherization products to make your home more comfortable and energy efficient all year long.

Insulating foam seal
Easy to install
Use with window A/C units
Model Number: 284423
Item Weight: 0.140 LB
Brand: Duck

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Size

2.25" x 2.25" x 42"

Insulation thickness

2.25 in

Material

Foam

Features

Easy Installation

Warranty

Warranty information

Liability limited to replacement or refund of product cost. Call 1-800-321-0253 for details.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Refine your search

air conditioners window unit

window air conditioner

insulation

weather stripping

foam

portable air conditioner

ac unit

air conditioner

window seal

Customer ratings & reviews

4.6 out of 5 stars

stars502 ratings217 reviews

How item rating is calculated

Reviews summary

Pros

: Offers cost-effective solution for sealing gaps.
: Simple installation and operation.
: Quick setup with minimal effort.
: Made of thick material that effectively seals air gaps.
: Forms a precise seal around the ac unit.

Neutral

: Can be effective at blocking hot air, but may have seal inconsistencies.

Generated by AI

Customer photos

+15 images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

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Showing 1-3 of 217 reviews

Feb 3, 2026

LindaS

Top Reviewer

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

Good product

The foam around my a.c. Stopped the draft immediately and the cover worked great to protect my unit and seal the window from the cold weather in Northeast WI. I've never left my unit in the window and this product secured it well from winter's bite.

Helpful?

Mar 27, 2026

Larry

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

very good product installed easy.

Helpful?

Apr 9, 2026

NKDA

Top Reviewer

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

Easily can be cut to size so it fits around and insulates a window air conditioner.

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Duck 2.25" x 2.25" x 42" Window Air Conditioner Insulating Seal, Black

Key item features

Specs

Reviews summary

Pros

Neutral

How do you want your item?

More seller options (2)

Get free delivery, shipping and more*

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