Tilt window spring support

A quick learner from VERMONT says:
I am missing one of these supports.
The support is 1 & 7/8" till
1 & 1/4 "wide at widest part amd the main part of the support is a little less and the support also has a rib facing the inside of the window
Thumbnail of the uploaded file named coil support clip
Thumbnail of the uploaded file named coil support clip
Profile picture of Emily
Emily from SWISCO responded:

Thanks for reaching out to us! We have a handful of coil housing similar to this so we'll need more information to help narrow down some options. Can you show us a photo of the pivot shoe, preferably removed from the window track? Identifying the pivot shoe will allow us to determine the compatible coil housing. 

A quick learner from VERMONT says:
Enclosed is the photo you requested.
Thumbnail of the uploaded file named pivot shoe
Profile picture of Emily
Emily from SWISCO responded:

Thank you kindly! Our 15-111 appears to be a match. This is compatible with the Series 160 springs that use the 15-150S support for a single coil spring. Take a look and see what you think.

Profile view of 15-150S
Profile view of 15-150S

Detail of 15-150S
Detail of 15-150S

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