Looking for patio screen door rollers

A home owner from Ottawa says:
Hello, some of our screen door rollers recently gave up. Being a pre-existing home, this was the first time we had a look inside the screen door. It appears that the white roller piece (see images) was held in place with a long spring and thin screw threaded through it, with nothing else to hold it in place! Frankly this is unlike any screen door I've had before and cannot readily find a replacement part. No marking or serial numbers, except for the crown logo on the handle (see image). Please advise. Think the previous owner may have Macguyvered the rollers assembly looking to un-Macguyver it :)
Thanks,
Mike
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Tom from SWISCO responded:

Hello, Mike! I think we can help you with this, but I admittedly can't make out your roller from these photos. Would it be possible to see it from a few more angles? Don't worry about measurements at this point, I just want to get a good idea of the design.

In the meantime, I have two that came to mind right off the bat: our 84-034 and 84-032. Look these two over to start with and see how well they compare.

A home owner from Ottawa says:
Thanks Tom! Attached a few more photos. The last one shows what was in place, with the screw fitting through the white bracket and sitting where the upper screw is in this pic(shown in the first message pics).

Will look at those models, see how they compare.

Thanks again!
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Dave Sr. from SWISCO responded:

Take a look at the 84-100 roller to see if that would work in your patio screen door. This appears similar to the design you're showing here, though it does seem most of yours have broken off. If not, let us know and we can work from there.

A home owner from Ottawa says:
Hi Dave,
Thanks so much! Will measure what I have, they look very similar.
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