A quick learner from Texas says:
I need to replace this rail and the rollers. I can get more pictures if needed. I could not find any numbers or a name on this shower door.
Thumbnail of the uploaded file named swisco.jpg
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Tom from SWISCO responded:

Your rollers look like they might be older versions of our 10-071. Look this over and see if the dimensions match up. If you also need the support, see our 10-073.

I'm afraid we won't be able to supply the rail they go on. I apologize for the inconvenience. 

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