CertainTeed window replacement parts

A home owner from Owings MD says:
I believe I need something called a balance spring and a shoe for both sides of my window. Can you confirm the parts that I need. This was for a window installed in my home in 1999
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Bob from SWISCO responded:

Take a look at our 15-192 Certainteed Pivot Shoe. This shoe uses our Series 170 and Series 171 Coil Balances. See the video below for more details.

SWISCO S170 and S171 Coil Balance Assembly
SWISCO S170 and S171 Coil Balance Assembly
VIDEO
WATCH >
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How to remove window pivot shoes
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