SWISCO - The Replacement Hardware Authority

Need help identify this roller

A quick learner from USA says:
Need help identify this roller
User submitted photos of patio door rollers.
Profile picture of Paul
Paul from SWISCO responded:
There are two possibilities. See our 81-004 and 81-023 and see which of these is closer. Make sure to carefully compare the dimensions of each to your hardware to determine the better match.
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