Searching for card slot window side insulation

Hello!

I'm afraid it's not possible for us to ID your weatherstripping from this description. We specifically need you to remove an undamaged version and show us a clear photo of the end profile. Let us know if that's something you can get!

Thank you! We don't sell wool pile that installs with a kerf like what you show here. However, take a look at the 58-053. Review the specifications and see if you think this could work for you. 

Profile drawing of the 58-053 bubble seal.