3M Outdoor Window Insulator Kit 2174 W-6, Patio Door

• Apply when outdoor temperature is above 50° F (10° C)
• Fits one 6'8" x 9' outdoor patio door
• For outdoor use only
• Not for use on masonry, rough-sawed or unpainted wood
• Quick and easy installation
• Reduces condensation and prevents frost buildup
• Saves energy and reduces heating costs
• Use on painted or varnished wood, aluminum or vinyl-clad molding

The difference is Scotch Tape! Clearest Film, Reduces condensation, Stops cold drafts, saves heating costs. Available in a variety of indoor and outdoor window sizes. 3M Window Insulator Kits keep cold drafts out and warm air in through heat shrink window film and Scotch Window Film Mounting Tape. 3M window kits have the clearest film and stay up all season long with Scotch tape technology. Scotch double sided tape holds firmly between films and surfaces