Weather Stripping

Hello there. It looks like this weatherstripping has an offset foam seal as well as a leaf flange. How does it attach to the frame? Does it have a kerf that was broken off? If so, our 58-181 might work as a substitute, if the dimensions align. See the diagram below and compare. If this seal attaches in some other way (like if that leaf flange inserts into the frame), something like our 58-055 might work as a substitute, but I am less certain. Take a look and see what you think.

Profile view of 58-181