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This item has become Discontinued
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Larson's insider™ storm windows mount inside your home to block drafts, outside noise and increase energy efficiency.
Insider Storm Windows are sold by the United Inch ( UI )
Round up to the nearest whole inch on width and height, add together to get the UI
Low-E glass for increased energy savings (not available in commercial size)
Available in White, Brown, Antique White, and Champagne.
Reduces drafts by up to 48%
Significantly reduces outside noise
Improves U-factor of your existing window by up to 50%
Easily installs in bedrooms, living spaces, second story rooms, historical homes
Removes effortlessly for easy cleaning
Stays in place year round or removes easily
Slim mounting rail for a clear view outside
Available in Commercial grade for large windows