BetterBilt easy tilt window balance

A home owner from Visalia Ca says:
I am looking for (2) balances for my Betterbilt window in my bathroom, hopefully you can help.

User submitted a photo of a coil balance.
Profile picture of Paul
Paul from SWISCO responded:
All I can see in this picture is your detent clip, which resembles our 15-186. This is often used along with our 15-180 shoe and Series 190 spring. Do any of these parts match what you have?
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