Coil balance w housing

A home owner from Wheaton, Illinois says:
March 22, 2020
The metal coil has broken on one window
Thumbnail of the uploaded file named image.jpg
Profile picture of Bob
Bob from SWISCO responded:
March 24, 2020

Thanks for posting. This looks like the 15-086 Tandem Housing, which is used with the 15-087 Coil Balance Shoe. This assembly uses our Series 180 Coil Balances. Look for stamp codes on the springs themselves to determine what spring weight you need. If there are none, or you are uncertain, obtain the exact weight of your window sash. Give us that precise weight and we'll work out what you need.
A home owner from Wheaton, Illinois says:
March 29, 2020
Hello! The only number we see is either a 6 or a 9. But I did weight it at 11 lbs. Thanks!
Profile picture of Bob
Bob from SWISCO responded:
March 30, 2020

Most likely then the number is a '6'. You could use a pair of the S180-6 6 lb Coil Springs, on on each side of the sash. This totals 12 lbs of overall support; so long as the spring weights are within a pound of your sash's actual weight, the setup should work for you. Let us know if you have any other questions.
Tandem Coil Housing
Tandem Coil Housing
15-086
$1.68
Coil Housing Pivot
Coil Housing Pivot
15-087
$5.97
6 lbs Series 180 Coil Balance
6 lbs Series 180 Coil Balance
S180-06
$4.45
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.