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This kit is installed on the inside of an exterior window to help drafts and increase R-value of the window, saving energy. The kit consists of one clear plastic 42" x 64" sheet that shrinks tight and wrinkle free with an ordinary hand held hairdryer (not included). It may be installed on metal, painted, varnished wood or vinyl clad window frames with the double-face tape provided.
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This shrink-fit window insulation kit can help to reduce drafts and increase the R-value of existing windows, lowering energy use. One 42" x 64" plastic sheet is provided in each package.
