Balance identification

A home owner from Hawaii says:
I need a replacement channel balance spring assembly for my single hung vertical vynal sliding window.

Interested in the channel balance with spring assembly installed shipped to my address below via USPS.

please find some pics attached & measurements below, thank you

full metal length = 15 inches
width of metal side = 0.5 inches
width of metal top (numbers side) = 0 5 inches
User submitted photos of a window balance.
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 balances.

Now, as you can see, there is only one difference between these two Series, and that 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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