Bottom of door plunger pin that follows the track. Brown upside down u shape
A quick learner says:
June 21, 2015
Sliding screen door on a double regular one side opens pella a porch door. The brown bottom track guides are broken from hitting the door when closed. The door is from 2000 on the side it says GU and a symbol.
Paul from SWISCO responded:
June 22, 2015
Could you be looking for something like our 86-024? Look it over and see what you think.