Sash support coil balance spring

A quick learner from 93458 says:
August 3, 2017
Did not find any markings,numbers or names on the right or left sash support coil balance spring(s) which both are required replacing.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
August 7, 2017
Hello! You're looking at a Series 190 coil here, but we will need the sash weight to determine the necessary spring strength, if you can't find any numbers on the coil. Alternately, the number on the coil will identify which Series 190 coil to purchase.
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
Coil Balance Clip
Coil Balance Clip
15-186
$5.05
Balance Bushing
Balance Bushing
15-182
$1.80
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 >
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.