Replacement window coil balance

A quick learner from Stone Ridge, VA says:
Ours was broken but here are the pictures. Not sure what I should order. The coil weight is 8 and is 1/2" wide. The coil holder cover is about 3 inches long. Can you help?
User submitted photos of a coil window balance.
Profile picture of Tom
Tom from SWISCO responded:
The shoe looks like our 15-180. Do you agree? If so, then I recommend our Series 190 for the spring.
A quick learner from Stone Ridge, VA says:
Agree that 15-180 is the right shoe. Our spring coil is labeled 8. the series 190 has a 3 digit coil number. Which one is the one I should use.
Profile picture of Paul
Paul from SWISCO responded:
We have two 8 pound coil springs for the Series 190. S190-832 has a length typical for most windows at 32", while the S190-840 is for taller windows at 40".
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