Need top of sash guide

A quick learner from Florida says:
I Just ordered several of your Series 351 balances, and some spare balance parts. However, I can't find this top sash guide on your website. Do you have one?
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. This resembles our 18-168. Could this be the part you're looking for?
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