Sash balance marked 1620F

A home owner from New York says:
January 13, 2018
Trying to figure out which model would work for my application. 1/2 inch wide, 17 inches long, marked 1620F

Thanks
User submitted photos of a window balance.
A home owner from New York says:
January 13, 2018
Here are better photos, it appears the "wings" may have been snapped off on the original photo
User submitted photos of a window balance.
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Paul from SWISCO responded:
January 19, 2018
The 17" side-load balance you will need is likely our S350-17 balance. Please compare the balance ends to yours. For the spring weight code, use "1620" to match your stamp on the balance. Weigh the window sash to be certain.
A home owner from New York says:
January 19, 2018
Thanks Paul. Glad to be able to rebuild this window at 1/4 of the cost for the replacement plus labor
17" Series 350 Channel Balance
17" Series 350 Channel Balance
S350-17
$9.34
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