Dual coil balance replacement

A contractor from Omaha,NE says:
Looking for a replacement coil balance assembly. The only markings I saw were the 7 & 8 where the shoe is. Any help would be appreciated!
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Lauren from SWISCO responded:

Hello, thank you for posting,

Your balance assembly resembles the 15-087 pivot housing with the S180-8 coil spring and the 15-086 tandem housing with the S180-7 coil springs. Please review the overall dimensions to confirm a good fit! Let us know if you have any additional questions! 

Detail of 15-087
Detail of 15-087

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