The window has a sticker the says: 1 WH FS FE LH FC C0046 M
When I Google that Simonton comes up so I think that is the manufacturer. I need a replacement seal.
Emily from SWISCO responded:
April 19, 2021
Hello! We can help but we'll need to see the end profile of your weatherstripping. Please see the video I've attached below, it will show you everything we need to see to provide an identification.