Help identifying my sliding glass door roller asembly

A home owner from New ORleans says:
November 18, 2011
This is the roller assembly for my sliding glass door. I looked all over Home Depot for the replacement and cannot find it. It is fairly large.
A customer submitted photo of a sliding glass door roller assembly.
Profile picture of Paul
Paul from SWISCO responded:
November 18, 2011
Thanks for posting!

Possibly either our 81-051 or 81-052 sliding door roller. Can you please give us your sample's dimensions in inches so that we can help you confirm the correct roller?
Arcadia Sliding Door Roller
Arcadia Sliding Door Roller
81-051
$15.97
Sliding Door Tandem Roller Assembly
Sliding Door Tandem Roller Assembly
81-052
$28.50
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