trying to find replacement part for sliding door screen

by Sheree Gibson
(Salem, SC, US)

I am trying to find a replacement roller for a sliding door screen. One of the two rollers on top has a broken spring inside. See photo for roller. The roller has an insignia (three diamonds with the letters D, P, I inside). The door itself says "ps" or "pd" on the latch.

This looks like a Peachtree screen door roller, $5.60 each, needs to be ordered in but is available.