Weatherstripping on Side of Window

Question

Hello, I'm looking for the part to replace these Pella Architect Series window weather seals. This is on the side of the double hung windows. The windows were purchased circa 2006.

Thank you,
Matt

Tom · Accepted Answer

Hello, Matt. I'm afraid I don't recognize this weatherstripping. I can somewhat make out the end profile shape in your third photo, but it almost looks like some piece of it is missing. Can you confirm that, or is that all there is? It's necessary to see an undamaged version.