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This is a roll of clear shrink film plus double-sided tape that seals up to five 3'x5' windows against winter drafts. You tape the film to the frame, shrink it tight with a hair dryer, and it turns nearly invisible while blocking air leaks. It is the standard low-cost fix for drafty single-pane windows and rentals, since it peels off cleanly. Compared with rigid storm-window panels or magnetic kits, it is cheaper and simpler but less durable and not reusable.
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Lowest price we've seen: $9.96 on Nov 10 at Walmart. Tracked across 1 store since Nov 10.
Buyers mostly report an easy, clear install that visibly cuts drafts and warms rooms. Complaints center on the film sagging, tearing or detaching before the season ends.
This indoor window insulation kit has a roll of crystal clear shrink film and window kit tape. The film measures 62 in. x 210 in. and covers up to five standard 3 ft x 5 ft windows. It adds a barrier over the window that blocks drafts and air leaks, which can help lower heating expenses.
The roll needs no pre-measuring. Apply the tape and film, then cut the film to size after it is stuck down. Use a hair dryer to smooth out wrinkles, and trim the shrink film last. The kit removes cleanly, so it can be used in rentals.
Apply it to clean, dry painted wood, finished wood, aluminum or vinyl surfaces. Do not use it on plaster or unfinished wood. Clean the surface and let it dry completely before applying the tape.
