Need correct roller

A home owner from Brookline, Massachusetts says:
I just ordered two Arcadia door roller (Product code: 81-074). However, the rollers are too big to fit in the sliding door, which is Arcadia 500 series manufactured in the 70's. My question is that I'd like to return the rollers. Meanwhile, can I also mail the ones that I currently have? I need help from you to find the right dimensions. I just not good at measuring things. I really appreciate it if you can help. Regards, Dapeng Chen
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Dave Sr. from SWISCO responded:
For the returns, you can go to our Returns/Exchanges page. For the rollers you need, send us pictures with some measurements.
A quick learner from Brookline, Massachusetts says:
Dear Sir/Madam,

I have measured dimensions of the rollers (for Acadia sliding window door 500 series). Please see attached picture for details. I marked the measured dimensions to the 800 series roller picture that I found on your web.

I also attached pictures of both rollers (file names were named as roller 1 and roller 2).

Could you look at it and see whether you have the same rollers in stock?

Thank you very much,
Customer image of their Arcadia roller.
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Donna from SWISCO responded:
SWISCO product code 81-082 looks close to what you are searching for, take a look and compare the dimensions to your original.
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