Atrium window 29" channel balance

A handy person from Las Vegas says:
I can't find any numbers printed on it. They have been smeared off. I need 2 of these.
Thumbnail of the uploaded file named B874EF09-1D43-4638-B3E5-F07E67D5D844.jpeg
Thumbnail of the uploaded file named FD43FBD4-9D19-4962-BD86-2BEBCEE17211.jpeg
Thumbnail of the uploaded file named 0E7E673E-1AEC-4271-9474-38F6F0858AC4.jpeg
Thumbnail of the uploaded file named 6E5AC79D-F8CF-4DC9-AD4D-3DE094443E1F.jpeg
Profile picture of Tom
Tom from SWISCO responded:

Hello! Based on your photo, I believe you have either our S390-29 or S351-29. The only difference between these two parts is the depth of the bottom shoe, so you'll have to measure yours and review our dimensions to confirm.

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.