• 3M Indoor Window Insulation, Insulator Kit for 2 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2120W-6)
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Building Materials 3m

3M Indoor Window Insulator Kit 2120W-6, 62in x 84in

3M Indoor Window Insulator Kit 2120W-6, 62in x 84in

$6.36 USD
$9.59 USD $6.36 USD
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SKU: 2120EP
UPC: 051131569508

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Rating: 3.9/5

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Ranked: #24 in Weatherproofing Window Insulation Kits

Last Updated: June 11, 2026

The 3M Indoor Window Insulator Kit 2120W-6 is designed to help you keep warm air in and cold drafts out during the winter months. This kit covers two standard windows (3ft x 5ft each) with a clear, easy-to-apply film that offers effective insulation. It comes with heat shrink window film and Scotch Window Film Mounting Tape for a secure hold. Suitable for residential use, it's perfect for homeowners looking to improve energy efficiency and comfort. Installation is simple and ideal for any room in the house.
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