Patriot Manufacturing Liberty Series Single Hung Vinyl Windows weather stripping

Thanks for reaching out to us, Karen. I'm afraid I don't recognize this style of foam seal. We carry a bunch of products that may potentially work as a replacement, but I'm not sure which one to recommend. There's one important detail that I can't determine from your photos, which is how this seal installs in your window. Can you explain to me how yours does it?

I wonder if there is a kerf or base of some kind that's missing from the sample in your photos. If there is, would it be possible to see a whole and intact sample? That would be a huge help. Let me know!