Slider screen roller cartridges

A quick learner from Dennis MA says:
There are two spring-loaded roller cartridges recessed into the bottom edge of the screen frame, and two more in the top edge.

The screen frame is one-half inch thick.

Cartridge dimensions are:
1.375 x 1.25 x 0.312. Inches. Or

1-3/8 x 1-1/4 x 5/16. Inches

Excluding the protruding stop screw and roller
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Tom from SWISCO responded:

Thanks for posting! Please see our 84-083 roller. This looks like it could be a good match, but see what you think.

A quick learner from Dennis MA says:
Thanks,
I bought them.
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