bypass bottom sliding door guide

A quick learner says:
I have to replace several (4) sliding bottom door guides model I believe is 21-022 . I have been unable to find proper replacement part. Can You Please help. Or is there another type of part that I can use to replace these ???
Thank You
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Casey from SWISCO responded:


I would recommend starting by comparing the specifications of the 23-021 bottom guide to an undamaged part if possible. We have recommended this as a possible replacement for similar parts to yours in the past. Thanks for posting! 

Dimensions for 23-021
Dimensions for 23-021

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