Springs & shoe for no name window

A handy person from Eau Claire, WI says:
December 5, 2023
Short coil has a C on it. Long coil has a CL on it. Sash is vinyl with thermal pane approximately 26" by 33"
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Emily from SWISCO responded:
December 5, 2023

Hello there!

Thank you for reaching out to us. The pivot shoe in your photos is discontinued but you can use the 15-177 in its place. For new springs, I recommend the Series 152. You'll also need to divide the sash weight by two to determine the proper spring weights. 
Coil Balance Shoe, Slate Blue
Coil Balance Shoe, Slate Blue
15-177
$3.47
9 lb Series 152 Coil Balance
9 lb Series 152 Coil Balance
S152-9
$5.15
8 lb Series 152 Coil Balance
8 lb Series 152 Coil Balance
S152-8
$4.90
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