Do it Best 42 In. W. x 62 In. L. Extra Strength Indoor Window Insulation Kit (3-Sheets) Pack options:Pack of 1 and depth compatibility with framing

and depth compatibility with framing members

glues or pins used in the installation

These connectors are always installed in pairs and connect 4x or 6x wood members at right angles

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A lower gauge and weight product

Do it Best 42 In. W. x 62 In. L. Extra Strength Indoor Window Insulation Kit (3-Sheets) Pack options:Pack of 1 and depth compatibility with framingThe Do it Best Extra Strength Indoor Window Insulation Kit is designed for high traffic areas, offering twice the thickness of standard film to resist accidental punctures and increase R value by up to 90%. The crystal clear plastic sheet shrinks tight and wrinkle free with a simple hairdryer, providing a neat, energy efficient seal. It easily installs on metal, painted, varnished wood, or vinyl clad window frames using the included double face tape.