Roller for sliding screen door

I don't see any markings on the screen door. I can send photos of the French door if you need.

There is an adjustment screw on the side, but removing it doesn't loosen the roller. I have seen YouTube videos where you can pry the roller off the retaining clip, but this roller is spot welded to the metal strip that goes inside the frame (towards the outer edge of the door.)

There is this "pin" on the inside edge of the frame (adjacent to the screen material.) It can be pushed in, but I am not sure what part it plays in removing the roller.

Thanks very much for your help.

I figured out how to remove the roller and spring. The width of the spring is 3/8" or 9 mm.

Now, which one is it?
84-001?
84-031?
84-106?
84-107?

Thanks!!