Coil Window balance assembly

A landlord from Washington DC says:
Please identify this part.
User submitted a photo of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
This pivot shoe looks like our 15-111. Check it out and see what you think. The coil housing, on the other hand, looks like our 15-150D. The coil springs would be our Series 160. Let me know your thoughts. Keep in mind that you don't necessarily need to change everything, just what is broken.
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