need replacement tops

A handy person from Frisco,TX says:

I need to replace several balances and tops. I will ask in 2 questions as I cannot attach enough photos. First is the top. Can you tell me which model number this is?
User submitted photos of a top sash guide.
Profile picture of Paul
Paul from SWISCO responded:
This looks like our 18-175 top sash guide. Please compare it to your own hardware and see if you agree.
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