Weather Stripping used by Windsor Windows on 1987 Casement Window

I agree, the 58-170B was my first thought as well. It's still different enough in design that I cannot confirm that this will work, and I also do not know your dimensions, so at this stage it's just a guess. However I do think it's worth considering. Your next step should be to review our dimensions to see how well it compares.

Profile view and dimensions for 58-170B

Sounds good! Please let me know if you had any questions and I would be happy to assist.