Window Coil replacement part, on the coil it has the number 7, these are for double hung windows.

A home owner from Mahopac NY says:
April 9, 2020
I have uploaded pics for your advise. please advise.
Thumbnail of the uploaded file named IMG_0429.jpg
Thumbnail of the uploaded file named IMG_0430.jpg
Thumbnail of the uploaded file named IMG_0431.jpg
Profile picture of Casey
Casey from SWISCO responded:
April 10, 2020

I believe I can help you with this. The manufacturer discontinued your balance system and it replaced with the Series 150 coil springs and the 15-140 pivot shoe. Since your balance is marked with a "7", our S150-7 should work. The other parts are the same: the 15-143 coil bushing, 15-144 coil bushing cap and 15-145 support barrel. Take a good look at each part and let us know if any other questions come up. 
Profile picture of Casey
Casey from SWISCO responded:
April 10, 2020

Each piece is sold separately and will need to be assembled. 
A home owner from Mahopac NY says:
April 10, 2020
do these come fitted together. or I would need to assemble each one
7 lb Series 150 Coil Balance
7 lb Series 150 Coil Balance
S150-7
$6.59
Coil Balance Shoe
Coil Balance Shoe
15-140
$3.07
Coil Bushing
Coil Bushing
15-143
$0.97
Coil Bushing Cap
Coil Bushing Cap
15-144
$0.70
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
VIDEO
WATCH >
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 >
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.