part ID and price

A quick learner from USA says:
June 22, 2023
The sashes for these balances are 24lbs 2oz.

I would need 2 of them.

I assume the sashes these would go to are around 20 to 25 lbs? I would need 2 complete assemblies

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Emily from SWISCO responded:
June 23, 2023

Hello there!

Thank you for reaching out to us. Our 15-180 is my pick. With a 24-pound sash, you can use (2) S190-640 6-pound springs on both sides of the window. This would total 24 pounds of overall support. For a double coil spring support, I recommend the 15-181. Look these parts over and let me know if you have any questions. 
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
640 S190 Coil Balance Spring
640 S190 Coil Balance Spring
S190-640
$9.74
Double Support Detent Clip
Double Support Detent Clip
15-181
$6.17
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