Rollers for sliding windows

A home owner from Tucson, AZ says:
I haven't been able to determine a manufacturer as of yet, they were installed by a subcontractor for home builder in 1992. They are single pane windows.
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Paul from SWISCO responded:

Greetings from SWISCO. There's a possibility our 87-175 window roller may work in your window. Take a look and let us know if you agree. 

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