I have an older Alenco double hung window with glazing that looks like these in the picture. Each side measures 11/16 with the small tip being 1/16. I thought I had seen someone with a similar question and you recommended your 55-080-6. What
Dave Sr. from SWISCO responded:
August 13, 2015
I agree, our 55-080-6 appears to be our closest match. I cannot guarantee that it will work but we do not have anything else that is more similar.