Window seal

We may be able to provide the seal you need for this window, but it's unfortunately not possible to ID a match based on the provided photos. We'll need you to remove a small and undamaged sample of the original and show us a clear photo of the end profile. The video below will go into more detail as to what I mean.

I'm afraid these pictures don't show me anything new. It is possible that the channel in which the seal inserts is sealed on the ends, meaning you'd have to make a cutout to remove it. As for brand name, there may be a name somewhere on the frame; check for a sticker that might tell you who made it. Just note that even that probably won't help; manufacturers use tons of different seals for their windows, and there's vey often a lot of overlap. At the end of the day, physical reference is going to be your only hope.