White, vinyl weatherstripping, 1/4 wide foam filled core, 1/8 slot

Hello there! 

Thanks for reaching out to us. I'm not quite sure how this part installs since I don't see a kerf or T-strip. I wonder if it might've torn off. If it did, we'd like to see an undamaged sample's end profile to help determine your replacement options. 

It's hard to say. I don't see how this part would install without some type of kerf or T-strip. Our 58-053 and 58-135 appear to be our closest options but I'm not sure they'll work. Look over the specifications and see what you think.