SWISCO - The Replacement Hardware Authority

Coil Balances for two different sized windows

A home owner from NJ says:
I have two different sized windows. Both coils have the 7 marked on them. Is it correct to assume i need the same product for both windows? Item S152-7

Window sizes are:
28 1/2 inch x 17 7/8 inches
23 3/4 x 20 1/2 inches

The coil balance shoe for at least one window is broken. Based on the pictures, it looks like Product Code: 15-175?

User submitted image of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Hello! You have a good eye. I agree, the 15-175 shoe and Series 152 spring look like good matches. If you have a 7 on your spring then the S152-7 is a good bet.
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