Sliding Door 1992 no name

A quick learner from Wichita, ks says:
Hello, i went to lowe's, HD & ACE and they do not carry this sliding door wheel i am needing. I can't find the name of the door anywhere. Can you guys help? I found a piece similar to the one i need on your site but want to make sure it is the right one.
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Tom from SWISCO responded:

Hello! I'm not sure which part of ours you were looking at, but right off the bat I think your roller looks like our 81-078, which has a flat wheel. Is this the one you had in mind?

A quick learner from Wichita, ks says:
Yes! That is it. I will go ahead and order them.
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