S161-05 with 2 coil springs

A home owner from Saugerties, NY says:

IS 180-5 THE COIL SPRING FOR THE SECOND COIL ON S-161-05, ALONG WITH COIL HOUSING 15-086? Or what is the number for s161 with 2 coil spring 5lb.

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Casey from SWISCO responded:

Hello,

It sounds like you may have the 15-087 coil housing pivot, which would use the S180 coil springs for the top and bottom coils. There should be a number stamped on both coils that will tell you the corresponding strength option to choose for your replacements. 

If you're not sure if these are the parts that you need, please show us photos of your balance shoe and coil springs removed from the window. Thank you! 

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