Hello,
I'm looking for rollers like shown in the photo for my screen door. I've found these similar rollers locally but they are too wide for the slot in the metal frame. I suppose I have a nonstandard metal frame door, it measures 7/16th inch wide outside to outside. The screen door goes with a vinyl frame slider that is 25 years old. I believe it was made by EPI, the same company that made our vinyl windows.
-Don