Duck Brand, 1.38 Inch X 0.5 Inch X 42 Inch Window Air Conditioner Insulating Seal, Noise Reducing
Duck Brand, 1.38 Inch X 0.5 Inch X 42 Inch Window Air Conditioner Insulating Seal, Noise Reducing
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Duck Brand, 1.38 Inch X 0.5 Inch X 42 Inch Window Air Conditioner Insulating Seal, Noise Reducing

|640 ratings

Key item features

  • Precise Dimensions: The insulating seal measures 1.38 inches in width, 0.5 inches in thickness, and 42 inches in length, ensuring a specific fit for window air conditioner units.
  • Effortless Installation: Simply place the seal atop the unit and lower the window for compression; its flexible design allows for easy cutting to fit nearly any A/C unit.
  • Adhesive-Free Use: Lacking any adhesive, this insulating seal is safe for renters, leaseholders, and temporary living spaces, preventing residue or surface damage.
  • Optimal Sealing: Crafted from high-density foam, it establishes a weather-tight seal around your air conditioner, effectively blocking winter and summer drafts from entering the home.
  • Multi-Benefit Barrier: Beyond maintaining desired indoor temperatures, it actively reduces noise and vibration while helping to prevent the entry of dust, insects, and pollen.
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Specs

Features, Easy InstallationMaterial, FoamRec location, WindowRec. use, Exterior WallsColor, WhiteSize, 1.38 in. x .5 in. x 42 in.

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 Premium Air Conditioner Insulating Seal is a high-density foam that creates a weather-tight seal around your air conditioner unit, keeping winter and summer drafts from entering your home. In addition to keeping the cool air in and warm air out, they reduce noise and vibration while helping to block 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.
  • Place seal on top of the unit and lower window to compress seal
  • Easy to cut and use to fit almost any A/C unit
  • The AC insulating seal has no adhesive, making it safe for renters, leaseholders and temporary living spaces
  • Model Number: 286049
  • Item Weight: 0.050 LB
  • Brand: Duck
info:
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Specifications

Features

Easy Installation

Material

Foam

Rec location

Window

Rec. use

Exterior Walls

Warranty

Warranty information

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

Customer ratings & reviews

4.6 out of 5 stars
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640 ratings208 reviews
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Showing 1-3 of 208 reviews

Sep 10, 2026
Reviewer name: Haywood
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Worked like a charm

Worked like a charm to seal my window.

Helpful?d0c608f0-bb16-11f1-819d-994bb3097ad7910495638
Nov 6, 2026
Reviewer name: J
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good quality, have been using for years. Purchased to replace some, that I reuse every winter, that went missing.

Helpful?d0c608f0-bb16-11f1-819d-994bb3097ad7910495638
Nov 4, 2026
Reviewer name: WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Easy to cut and use for someone who has no idea how to use it

Incentivized Review
Helpful?d0c608f0-bb16-11f1-819d-994bb3097ad7910495638
Current price is $6.36
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