M-D Building Products Polar Block Indoor 9-Window Insulation Kit Clear 42 x 62inch 4646

Enhance the energy efficiency of your house with this plastic Insulation Kit. The ultra-thin, but durable plastic film creates a sealed barrier between the window and your room, helping to keep warm air in your home while reducing condensation. The kit comes with a crystal-clear and wrinkle-free finish to provide the most visibility.