Top sash guide identification

A quick learner from USA says:
Can you please advise what part I need. I already purchased 27" series 385 channel balance option 2640. But the top guides are broken on the window

Please let me know so I can order
User submitted photo of their window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting! This looks like our 18-008 top sash guide. Take a look and let me know what you think.
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