Tandum wheel set with height adjuster

A quick learner from USA says:
I'm looking for a tandum wheel set with a height adjuster for an Owens Corning 8' sliding patio door made in 1999. It is square in shape.
Thank you in advance for your help.
User submitted photos of a patio door roller.
Profile picture of Tom
Tom from SWISCO responded:
Sure, we're always happy to help. My first thought after reviewing your pictures is our 81-156. Check it out and let me know if you could use this as a replacement.
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