Coil balance for windows

A home owner says:
When I tried to get these replacement parts for my windows, the home depot said they needed to know what brand my windows are. The only indication of this is a number, G-X7166, which I assume is the serial number. Can you identify these parts and/or the brand of window based on that serial number?
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Tom from SWISCO responded:

There's no need to know who made the window to replace this coil balance. What you have here is an older version of our 15-180 pivot shoe, which is designed to be used with the Series 190 spring. We also sell the 15-181 clip and 15-182 bushing, if you needed those. I am very confident this hardware will work for you.

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