Is this an Acorn 81-030 or something else?

A landlord from Dublin, California says:

This looks very close to the Acorn 81-030. All the measurements seem to check out, but the one on the Swisco site has an additional hole going though the side that mine doesn't have. I don't think I need this hole anyway, so I'm pretty sure it would work.

Can you tell me if it is in fact the Acorn 81-030 or something else?


User submitted photos of a patio door roller.
Profile picture of Tom
Tom from SWISCO responded:
Hello, Glenn. This looks similar to our 81-030 roller. Check it out and let me know if you agree.
A professional from California says:
The extra hole does not matter. It may have some purpose in the manufacturing process, but it does not affect the roller.
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