Not sure which option to select for S385 -12 replacement channel balance

A quick learner from Florida says:
November 17, 2015
I believe the options selections needed to complete the order are weight related but not sure. I have attached a picture of the balance just in case. The weight of the window it is picking up is 10.6 lbs.
User submitted a photo of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
November 18, 2015
Yes, the options indicate how much weight a pair of balances can support. If your sash is 10.6 pounds, I'd recommend our 1130 option.
12" Series 385 Channel Balance
12" Series 385 Channel Balance
S385-12
$9.34
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
How to replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
READ >
Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
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.