Duck Brand Double Draft Seal for Doors and Windows, 2 Pack (285229), 2-pack, 2 Count;

Once cold air moves in, it doesn't take long for heating costs to skyrocket. Duck Brand Double Draft Seal is designed to hug a door or window from both sides to block drafts and retain room temperature.  It fits doors up to 36 inches and seals large gaps up to 1-3/4 inch! Duck Brand Double Draft Seal works on interior and exterior windows, doors and all floor types. It is easy to install and is made from washable, abrasion resistant fabric. Each 2-set pack contains (8) 17-1/2-Inch long foam tubes, 4 plastic connectors and 2 fabric covers. Don't let winter (or summer) get the best of your energy bill!

Whatever your home insulating needs, Duck Brand has what it takes to get the job done and save you money!   Easy installation instructions (see video on Amazon page): 

Installation:

1. Connect foam tubes with plastic connector 

2. Measure foam tubes vs inside width of door and cut 1" shorter with scissors or serrated knife. 

3. Insert foam tubes in fabric cover 

4. Slide middle under door and lift elastic straps to secure in place.