Coil balance question

A home owner from San Francisco says:
March 25, 2021
Hi I'm looking for 3 replacement coil balances with the plastic housing parts as pictured. The top two coils are stamped EL and the bottom one is stamped E

The pivot bars for this model are 26-226 and the coil balance shoe is 15-175.

Thanks!

Thumbnail of the uploaded file named IMG_9363.JPG
Thumbnail of the uploaded file named IMG_9362.JPG
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Casey from SWISCO responded:
March 29, 2021

Hello,

The 15-175 pivot shoe in your photo is compatible with our series 152 coil springs. If your coils don't have any numbers included in the stamp, you'll need to weigh the sash and divide the weight by the number of coils on both sides of the window to choose the correct stamp option. Thank you!
Pivot Bar, 3-1/16"
Pivot Bar, 3-1/16"
26-226
$2.55
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