Vinyl window glazing strips

Hello, this window has "Allenco" embossed in the hardware for the two sliders on either side of the main 40"x40" fixed window.  I'm removing the 40x40 main window for resealing. Would you please assist me with securing replacement vinyl window glasing strips in white? Cross sectional image of original is attached. The side at my index finger is about 3/16" and the height is about 7/8". Thank you! Dan B.