I have a picture of the trim but it doesn't look like any of the moldings you have available. Could this be from an older Andersen window or maybe I was looking at your moldings wrong? Is this something you stock?
Bob from SWISCO responded:
January 21, 2021
Your glazing bead looks like an older type that Andersen used on their vinyl clad windows. Take a look at our 55-301 glazing bead. This is for 5/8" windows. Could this work for you?