Balance Guide made brittle by sun

A quick learner from Florida says:
Need to replace 14 of these guides. Florida sun has made them brittle and broke a few.
What part number would you suggest? Thanks!
User submitted photos of a top sash guide.
Profile picture of Paul
Paul from SWISCO responded:
Take a look at our 18-166 top sash guide. I think this could be a match, but look over the finer measurements just to be sure.
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