double coil spring ballance

A contractor from Pensacola Fl. says:
cl stamped on springs they are both 1/2 inch wide and 40 inches long when stretched out. they are screw applied to the shoe. not sure of the sash weight but it is a vinyl sash approx. 30 inches wide and 30 inches tall with a 3/4 insulated glass unit about 10 lbs. if i had to guess.
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Paul from SWISCO responded:
Sounds like you need two 5 pound coil springs on each side, I just don't specifically know what kind. Can you take a few pictures of the springs and the pivot shoes they attach to? That will help us identify your Series. Thank you!
A contractor from Pensacola, FL says:
Here are some photos.
User submitted photos of window hardware.
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Paul from SWISCO responded:
Thank you for posting. Look at our 15-175 pivot shoe and S152-5 springs and let me know if these match your hardware.
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