Need two spring balasts for large 26lb window

A quick learner from Philadelphia says:
August 20, 2022
greetings,
Do you have replacement parts for these?
Spring housing says Part# 801020 Patent #s 5.232.203 (and others)
Shoe has no part # but patent 4.610.108
Spring number worn but starts #7.5
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Casey from SWISCO responded:
August 22, 2022

Hello,

Take a look and compare the 15-191 pivot shoe, which uses the S160 coil springs and installation parts shown under the related items section of our product page, to your original hardware. Thanks for posting! 
7.5 lbs Series 160 Coil Balance
7.5 lbs Series 160 Coil Balance
S160-07
$5.04
Heavy Duty Pivot Shoe, 1/2" Thick
Heavy Duty Pivot Shoe, 1/2" Thick
15-191
$2.57
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