bubble seal for marvin windows

I need to replace the bubble seal weather stripping for some Marvin windows that appear to be circa 2001. the aluminum spacers on the glazing as marked "Marvin MN Usa 01" they are wooden double hung windows.

existing bubble is shown: Bubble is ~ 1/4" in diameter, offset just over 1/8th, and 1/4" deep ending with barb.


thanks for your help, Paul.