Roller from sliding door installed 1979 or 80s

A home owner from Washington DC says:
I am looking to replace the roller for my apartmet's sliding windows and balconey's door. Couldyou find the matching rollers for me? Thank you
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Casey from SWISCO responded:

Hello,

I would recommend starting by comparing the specifications of the 81-093 roller to yours. If you notice any discrepancies, please write out your exact dimensions and we can go from there. Thank you!

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