2 coil balancer

A quick learner from Michigan says:
Help identify
Thumbnail of the uploaded file named 20190617_175828.jpg
Thumbnail of the uploaded file named 20190617_175815.jpg
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Bob from SWISCO responded:

Thanks for posting. Could you show us the pivot shoe that this coil balance system connects to, preferably out of the window? The identity of the pivot shoe determines the identity of the coil springs. Many thanks.

A quick learner from Michigan says:
Thank you. Here is a picture of the show that you requested.
Thumbnail of the uploaded file named 20190623_132912.jpg
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Bob from SWISCO responded:

Thanks for getting back to me. This looks like our 15-111 Pivot Shoe. This shoe is compatible with our Series 160 Coil Springs. For a new cover, see our 15-150D. Let us know if you have any questions. 

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