Replacement springs

A home owner from Dix Hills, New York says:
August 31, 2022
I have Crossly windows in my home and a few springs are in need of replacement. They vary in size. I would appreciate help to get the correct spring replacement. The only imprint on the channel says "JAPAN." No numbers at all. The length of one of the springs is 21 1/2" the other is approx 16".
I need a few of each size.
Are these sizes available? I need help. Thank you so much.
Thumbnail of the uploaded file named IMG_7907.jpg
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Emily from SWISCO responded:
September 1, 2022

Hi there!

The balance you show here looks like a match for our Series 700. Double check the length of the metal channel and look over our specifications to see what you think. 
24" Series 395 Channel Balance
24" Series 395 Channel Balance
S395-24
$10.03
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