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: 13.25 USD
Availability: InStock
Rating: 4.6 (563 reviews)

|563 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 SizeSingle

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.

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Starting from $13.25

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4.6 out of 5 stars

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563 ratings192 reviews

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Showing 1-3 of 192 reviews

Jun 16, 2026

judi

Top Reviewer

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

Great choice

For clarity, there is no tape nor is assembly required. I only gave 1 star for each since neither applies. In the past I have purchased another brand. I was pleasantly surprised to find this was wider than the other brand - which, allows for better weather proofing. Very durable, easy to use, cuts easily with regular scissors. Blocks a lot if hot air from entering.

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Apr 11, 2025

SamuelEugeneDix

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

Good Seal

This is excellent for window sealing units.

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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.

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

Key item features

Specs

More seller options (1)

About this item

Product details

Specifications

Warranty

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