Double hung window coil balance

A quick learner from Ottawa says:
June 23, 2020
Hi,

I have a broken double-coil balance. Theonly marking on it is a C stamped on the coil. The window sash weighs about 16 lbs. Would any of your parts match this?

Thanks!
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A quick learner from Ottawa says:
June 24, 2020
Weighed the sash again and it weighs exactly 17 lbs. Both springs in the photo are stamped with a C. Could this be an indication that they used lower spec coils when installing this?
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Casey from SWISCO responded:
June 26, 2020

Hello,

Take a look at our 15-175 pivot shoe that works with our with series 152 coil springs. If your sash is 17 pounds, you could use an S152-9 on each side of the window. If you need replacement tilt latches as well, you could either remove an undamaged latch to show us or view our video below for installing surface-mounted latches. Thank you!
9 lb Series 152 Coil Balance
9 lb Series 152 Coil Balance
S152-9
$5.15
Replace an Internal Latch with a Surface Mounted Latch [1080p]
Replace an Internal Latch with a Surface Mounted Latch [1080p]
VIDEO
WATCH >
How to Replace an Internal Tilt Latch [1080p]
How to Replace an Internal Tilt Latch [1080p]
VIDEO
WATCH >
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
VIDEO
WATCH >
Removing a Triple Coil Window Balance
Removing a Triple Coil Window Balance
GUIDE
READ >
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