Sliding glass door roller

A home owner says:
I'm looking for a replacement for 2 rollers. I am not sure what kind of door we have.
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Bob from SWISCO responded:

Thanks for posting. How does our 81-157 Tandem Roller compare? It sure looks similar, but compare the dimensions to your old roller and let me know if anything differs, and if so, in what way.

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Alternate image for 81-157

A home owner says:
This looks like it! thank you for your help. will order
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Bob from SWISCO responded:

You got it! Thanks so much for the order, it means a lot. As always, we're here to help if you need it.

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