Channel Balance of my non-tilt sliding window

A home owner from San Jose, California says:
Could you help me to get the right part? It stamps on part 86 26-5 CB5 CMC 1. The length on metal is 27", and width is 1/2". I have 5 pictures attached above.
I would like to buy a complete whole channel balance. Can you give me a price?

Thank you very much
User submitted photos of window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385.

Now, as you can see, the only difference between these two Series is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.
15-004 and 15-005
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