Coil balance

A quick learner says:
October 13, 2020
Hi

think the coil balance is similar to Series 152 coil balance but I still not sure which size in terms of pound. It is for a window of roughly 2f x 54 "

Thanks
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Casey from SWISCO responded:
October 16, 2020

Hello,

Your pivot shoe resembles our 15-175, which does use the S152 coil springs. To choose the correct strength for your coils, you'll either need to locate the stamp on your existing coils and choose to corresponding option or weigh the window sash and divide the weight by the number of coils in the window. Thanks for posting!
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