Fuzzy Window Strip
A handy person from INDIANA says:
April 16, 2016
Can I get the "Fuzzy strip" for the track in the window. It looks to be about an 1/8" wide
Tom from SWISCO responded:
April 18, 2016
It sounds like you're describing your wool pile weatherstripping. I recommend looking through our complete section and seeing if you can find a match. I also recommend getting more precise measurements, including the width of the base and the height of the pile. Measurements for this kind of weatherstripping can get pretty specific, even going into the 1/32" range, so you want to make sure your measurements are as accurate as possible.