3M 2120W Indoor 2-Window Insulator Kit

Price: $9.80

Stops cold drafts and helps prevent frosty windows. Clear as glass. Easy to install requires only scissors and a hair dryer for installation. Safe application to aluminum, painted or varnished wood, or vinyl clad window moulding. Film wrinkles are remov

Features

Reduces heating costs and saves energy
Stops cold drafts, helps prevent frost build-up and reduces condensation
Performs like an extra storm window
Shrinks tight for wrinkle-free, clear-as-glass results
Increases R-value by 90% over an average single pane window.

User Reviews

This kit is easy to use and works well to stop drafts from coming through windows. I used it on some single-pane windows and the difference was amazing. 3M is the only brand I would recommend, don't waste your time with other brands. -- Easy way to increase the efficiency of your home

It's been crazy cold this winter in Florida and one of my son's windows doesn't seal quite right due to the house shifting a bit. So I used this kit to seal up this window and it worked very well. I found that the 3m tape doesn't stick to the cold aluminum window frames that well so use the hairdryer to warm up the frames and then stick the tape to the frame. After that it was a breeze and it really does end up crystal clear once you heat it up with a hair dryer. This window no longer has a draft and my son's room stays much warmer during these cold nights. -- Worked out well for my son's windows

There's a learning curve with first window. Tape is straight forward to put on, and cutting/placing plastic on tape is tricky first time. Plastic shrinks with heating to tighten and fits very nicely making overall installation look nice. I'd suggest two people, at least on first window, to install plastic. Results are immediately noticeable. -- 3M Insulator Review

I have to seal my windows yearly for the winter season. I decided to try out the Duck Roll-on window kit because it seemed like a nice product. Boy was I wrong. Not only did the roll of plastic come cut completely crooked, but their tape was worthless. The plastic wouldnt even stick to it. I would strongly recommend buying anything else other than this product. Unless you enjoy throwing your money in the garbage, because thats what you'll do with this product. -- Waste of money