Peachtree Exterior Door Weatherstripping
I'm sorry to say that I can't identify what you have based on these photos. This service requires seeing the end profile, as per the video below.
What I can tell you now is that Peachtree was bought out in the 90s and very few of their products are still sold. I'd have to see the end profile of your old seal to determine if there's even an alternative to be had.
Thank you! This is a huge help. So, we don't sell this exact style, unfortunately. The best option I can offer is our 58-180. This has an adhesive base, rather than the round plug-in style, but the top portion is the same kind of design. Review its size and see if this would still fit on your door despite the difference in how it installs.