Balance part number needed

A handy person from West Palm Beach says:
Hi there!
I need the part number for this balance. I tried to get all of the important aspects of it so it could be easier for you guys to let me know which ones I should order.
Numbers on it, 2720.
28 inches long. (Metal part)
9/16 inches wide.(Metal part)
Bottom Plastic leg piece is 1 inch wide.
Thanks in advance, Miguel.
Thumbnail of the uploaded file named 20240316_190007.jpg
Thumbnail of the uploaded file named 20240316_190041.jpg
Thumbnail of the uploaded file named 20240316_190123.jpg
Thumbnail of the uploaded file named 20240317_104343.jpg
Thumbnail of the uploaded file named 20240317_104437.jpg
Profile picture of Bob
Bob from SWISCO responded:

Hey Miguel. Thanks for all the thorough information, it's appreciated. This looks like an S351-28 Channel Balance, with a stamp option of 2720. I would just double-check the bottom shoe depth just to be safe. If it's 1", then this is definitely a Series 351; but if it's 1-1/8", you need the Series 390 instead. Judging from the photo I agree it's most likely 1", but pictures of measuring tape sometimes can be misleading, so just double-check to be safe. Let me know if you have further questions.

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

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.