Sliding glass dorr roller

A handy person from Leesburg, VA says:
This door was installed new when the hose was built 20 years ago. The pictures are taken on 1/4" graph paper(I think). Unfortunately I did not measure anything or put a ruler in the pics for size (uhg!)
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Tom from SWISCO responded:

We have a bunch of different rollers that match this style. See our 81-023, 81-278, 81-279, and 81-282. You will need to compare our dimensions to your own part to confirm the best match. I'm afraid I can't get precise measurements from graph paper, but we have detailed measurements on each product's respective store page that you can use as a reference.

A handy person from Leesburg, VA says:
OK will do. Thanks so much for your help!
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