Need sturdy brackets to replace many drawers

A home owner from Albuquerque, NM says:
I don't know the manufacturer of the rails but have been using Richelieu plastic brackets that are too small and constantly break. I need at least a 1" slot to fit the rail. Mounted against the back. If you have them, I would like to get about 10 pairs. Please let me know if you have something to replace the brackets or do I need to replace the rails with brackets? In that case, I would like to get 5. Thank you.
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Emily from SWISCO responded:

Hello there!

If the size of the gap that accepts the track is 1", take a look at our 32-089 and compare the dimensions to your old part to see what you think.

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