replement wheels for sliding glass door

A home owner from Hawai says:
This sliding glass door has no name. number or markings. It probably dates back to around 1960. The width of the channel is 7/8"
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Dave Sr. from SWISCO responded:

Look at our 81-077 and 81-083 rollers and see if either of their dimensions match up to your roller.

A home owner from Hawai says:
Thanks, Dave. Will look those up.
A home owner from Hawai says:
I looked at the specs and 81-077 looks like the right one. Thanks again!
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Dave Sr. from SWISCO responded:

Great! We're here if you need anything else in the future.

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