gasket across the bottom of the lower double hung window
A home owner from Wisconsin,Dells Wi says:
June 13, 2016
Window is about 9 years old bought at either menards or home depot. The window is wood with aluminum outside.There is a number between the two panes F10907x69F5M.The gasket is made of sponge covered with vinyl and folded in half with a plastic T runner all the way across the bottom that slides into a groove in the window
Paul from SWISCO responded:
June 15, 2016
It's hard to say. Based on your description, it sounds somewhat like our 58-170. Could this be what you're looking for?