sliding glass door rollers

A quick learner from Salem, South Carolina says:
Do you have a local vendor in the Greenville, South Carolina area? I have been to lowe's and home depot, but they don't have the type of roller that i need. My door's are probably 25 years old.

User submitted photos of a patio door roller.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. I think this looks like our 81-112 , but you're going to have to compare your dimensions to ours to confirm that they match.
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