Need to replace rollers

A handy person from Carefree Arizona says:
Need to replace both rollers on late 1970s aluminum patio door. Single rollers are installed -- Either single or double rollers are fine based on your recommendations. 6 pics are attached of the roller currently in place.
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Emily from SWISCO responded:

Hello!

Start by taking a look at our 81-020 and 81-261 rollers. Review the dimensions and pictures for each and compare them to your old roller to see if one of these matches up.

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