replacing the coil

A quick learner from Dawsonville GA says:
January 26, 2022
It is for a 15lb. sash and is stamped with the #7. The width of the copper coil is 1/2in.
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A quick learner from Dawsonville GA says:
January 27, 2022
Trying to find out which coil to use so I can buy two and get it done. The sash is 30in. tall. if you need anything other please email
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Emily from SWISCO responded:
January 27, 2022

Hello!

This looks like an older version of our 15-180 pivot shoe, which uses the Series 190 coil springs. Review our dimensions to see if this matches up to your original assembly. 

If your coil spring has a #7 stamp, see the S190-740 7 pound coil balance spring. 
740 S190 Coil Balance Spring
740 S190 Coil Balance Spring
S190-740
$9.74
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
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