Weather Stripping * | Frost King Heavy Duty Shrink Window Insulation Kit (3-Pack)

This E/O Shrink Window Insulation Kit 3-Pack Is Heavy Duty. It Is Twice As Strong As Our Standard Shrink Kit. For Situations Where Toughness And Extra Strength Are Important, This Window Kit Will Stand Up To The Challenge. Shrinks Clear And Tight With A Regular Hairdryer.

• Insulates 3 Standard Windows
• Increases R-Value Of Single Pane Window By 90%
• Extra Heavy Duty Tape
• Saves Money
• Saves Energy
• For Indoor Use