Searching for Caldwell series 31 coil balance

A quick learner says:

I am looking for several window coil balances (right and left) for a 17.8 lb. window.

Thank you,

Billy 

Thumbnail of the uploaded file named image.jpg
Profile picture of Paul
Paul from SWISCO responded:

Hello,

Take a look and compare the 15-087 coil housing pivot, 15-086 housing, as well as the  S180-4 and S180-5 coil springs to your hardware. Thank you!

How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
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 >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.