Weather stripping
Hello,
Take a look at the weatherstripping options listed we've related on this page. These slide into a 3/16" wide groove in the window. Review the specifications of each option to see if you could use one of these on your window. Thanks for posting.
There is no exact science to removing old weather stripping, unfortunately. In the past, you could take window sashes apart to replace the weather stripping, but most windows today have welded corners so they can't be taken apart.
You should be able to carefully cut out the original weatherstripping with a utility knife blade, using the back of the blade to force it in. You could also consider the 58-021 wool pile with the "fin seal". Take a look at the weather stripping the related videos to assist you.
That's great news! I'm glad that we were able to help with your repair. We appreciate your business and please let us know if you need anything else.