help identifying tip and shoe

A home owner from Sarasota, Florida says:
My channels don't match your models exactly could you tell me which would work for me. All my channels are marked BSI 2910, 2930.
User submitted photos of a window balance.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Based on your pictures, I would look at our S380-30 channel balance. This appears to match your hardware, just make sure the nylon attachments are the same.
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