Help replacing channel balance

A quick learner from Fort Worth, TX says:
I have BFS windows and I have a broken channel balance that I need to replace. There is no stamp on it. However, it appears to have a 19-005 top and what appears to be a 15-001 shoe (though the shape seems slightly different). The length is 34 inches.

I have attached photos of the channel.

I'd like to replace both sides, since I'm sure it's just a matter of time until the other one fails.

Please help me ascertain which channel I need to order.

Thank you for your help.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting! This is our Series S395 channel balance. I just need to know the weight of your window sash before I can tell you which specific balance you need to order. Thanks!
A quick learner from Fort Worth, TX says:
My sash is 27 pounds. Ideally I'd like to order 2 (or maybe more) of these, since I"m sure this will not be the last of these to break.

Also, I looked at the other channel balance and the writing on it said "33 9 IW CMC 11" I don't know what that means, but part of it was illegible in the one I took a picture of, so I wanted to share this information.

Thank you for your help.
Profile picture of Paul
Paul from SWISCO responded:
Thank you. Based on the weight of your window sash you need the 3340 option. Take a look at the S395-34 with the 3340 option. I am here if you need any help.
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.