Replacement constant force coil balance

Home Owner from Denver Colorado
Window weighs approximately 13.6 pounds
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Bob
Bob from SWISCO
SWISCO
Expert

Hello there! This looks like the 15-087 Pivot Shoe, which uses Series 180 Coil Balance springs sold separately. For a window that weighs exactly 13.6 pounds, you can use two of the S180-07 springs, one for each side of the sash. This will give you 14 pounds of support, close enough to the actual weight. Let us know if you have any questions.

Series 180 coil balance diagram
Series 180 coil balance diagram

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