Screen door roller assemblies - nylon - adjustment screw on door frame

A home owner from Chicago says:
I need both the 2 lower and 2 upper roller assemblies. they may be the same. Also, I destroyed one of the rollers trying to remove it, so I could use some instructions on removal and replacement. Thank you!
Thumbnail of the uploaded file named IMG_0355.JPG
Thumbnail of the uploaded file named IMG_0356.JPG
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Tom from SWISCO responded:

Hello! It's tough to tell what you have from this photo, but I think it may be our 84-139. That would explain your issues with removal: the 84-139 was actually not designed to come out, so damaging it is necessary. I'm not sure why the manufacturer designed it that way, but it's the only method I know of. Once they're in there, they're in there.

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