which balance to order?

A handy person from San Ramon, CA says:
Please recommend which balance to order. I can not tell which series is appropriate.

Attached are several photos that should help identify the channel balance. You may be able to read some dimensions re the top and bottom pieces.

The notations on the side read:
2030 BS1 EL
The length is 21".

Thanks -- great website BTW.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
It looks like you have a 19-005 top attachment and 15-001 bottom attachment. Do you agree? If so, the balance you need to order is the S395-21 with the 2030 option.
A quick learner from San Ramon, CA says:
Thanks Paul. Yes, the attachments do seem right.

I'll hold off for a little while though. While working on this, I took out both channel balances. I did not see any obvious reason why the window had not been working properly, so I put them back in. It seems OK now. I'll watch it and, if needed, I'll order the balances.
Profile picture of Paul
Paul from SWISCO responded:
Not a problem! Let me know if you need any help in the future.
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
VIDEO
WATCH >
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 >
Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
GUIDE
READ >
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.