Compatible top roller guide for 72" bifold track 4 door (7/16" pin)

A home owner from Saint Augustine, FL says:
March 19, 2020
Which top roller guide goes with part 23-456?
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Tom from SWISCO responded:
March 20, 2020

The 23-456 track is compatible with our 23-121 pivot guide. You can see other related parts on the 23-456 store page under "Related Items."
Top Pivot Guide, 7/16" Diameter
Top Pivot Guide, 7/16" Diameter
23-121
$1.49
72" Bifold Track, 4 Door (7/16" pin)
72" Bifold Track, 4 Door (7/16" pin)
23-456
$20.30
Bi-fold Door Repairs
Bi-fold Door Repairs
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