Replacing broken and cracked "balance" assembly

A home owner from 34 Thomas rd, Poughquag, NY 12570 says:
September 20, 2017
Windows are simonton windows. Barcode # 3217814/0433.500059.5000LPSHWIF066929.500027.1875
Installed 6/14/02
I will need 2 of these parts
Thanks.
Sherri Gaines
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Paul from SWISCO responded:
September 25, 2017
Hello! Thanks for your question. You either have a 3/8" wide coil balance spring, that would be Series 165, or 1/2" wide that would be Series 160. The spring weight size would be stamped on the spring near the pivot shoe.
3.5 lbs Series 160 Coil Balance
3.5 lbs Series 160 Coil Balance
S160-03
$4.50
3 lb Series 165 Egress Coil Balance
3 lb Series 165 Egress Coil Balance
S165-3
$4.70
How to replace a window coil balance
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