3/4 inch wide coil springs

A home owner from Garden Valley says:
September 15, 2017
I could not find any names, numbers or markings on the existing hardware. The end of each spring broke off and got lost. I am guessing that the ends that broke off and got lost are somewhere inside the window frame. I need two more of this part.
coil balance
A home owner from Garden Valley says:
September 16, 2017
What's the prognosis...Will you be able to help us find the right spring?
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Paul from SWISCO responded:
September 20, 2017
Hey there! You either have our S170 or S171 coil balance. We need the number stamped on the spring near the screw hole to determine which one you need.
A quick learner from Garden Valley says:
September 20, 2017
The problem is that the end of the spring that has the screw hole is the part that broke off and disappeared probably into the black hole of the window frame.

I made a note that it is either the S170-263 @ $5.75 or the S171-406 @ $6.35. I will send that info to our handyman, Jim.

Thank you very much for your help.
-Pat
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Paul from SWISCO responded:
September 21, 2017
Hold on, Pat! Don't guess. Have the handyman look at the coil spring on the other side of the window to get the number. Otherwise, the coil is unlikely to work.
263 Series 170 Coiled Balance Spring
263 Series 170 Coiled Balance Spring
S170-263
$5.94
406 Series 171 Coiled Balance Spring, Long
406 Series 171 Coiled Balance Spring, Long
S171-406
$6.55
SWISCO S170 and S171 Coil Balance Assembly
SWISCO S170 and S171 Coil Balance Assembly
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How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
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Removing a Triple Coil Window Balance
Removing a Triple Coil Window Balance
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