Need coil housing and coil balance

A home owner from USA says:
Hello sir,
My single hung window coil balance is broken . So I have attached the picture of the broken coil balance with coil housing. Place help me in identifying the parts.which coil balance and pivot housing will fit.

PAT. 5,353,543
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. Please see our 15-087 and 15-086 coil balance housings, as well as the Series 180 coil spring. This hardware appears to match what you have in your picture.
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