Replacement Pivot Shoe

A quick learner from Buffalo Grove, Il says:
April 28, 2020
Hi there I'm looking for a replacement part for my windows. I believe this is a balancing shoe. Several of them have broken so i would need a few. There are no markings on the windows, they are vinyl and swing inward both upper and lower windows. there was plastic piece that had a marking of a B on it i think.
Thumbnail of the uploaded file named IMG_0741 2.JPG
Thumbnail of the uploaded file named IMG_0741 2.JPG
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Bob from SWISCO responded:
May 1, 2020

This looks like our 15-175 Pivot Shoe. It would be best to remove it to confirm. This shoe uses our Series 152 Coil Springs. Let me know if you have any further questions. 
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