A handy person from now in Port Richey fl, was in Marlton, nj says:
March 11, 2017
This piece stops the window from going to far to the left as you raise or lower the window. i wrote on the widow the size of the opening. i need only one, but will buy the nec. min. thank you
Tom from SWISCO responded:
March 17, 2017
I'm not sure what this could be. Start by looking at our 67-014 face guide, could this work for you?