S390 vs S351 channel balance

A quick learner from Daisytown, PA says:
I just remove these two, what I believe to be, channel balances. It would be great if I could get replacements. I believe they are 17 inches long.
Thumbnail of the uploaded file named AF071AC2-E48C-484A-9C64-FC500CD2ACF1.jpeg
Thumbnail of the uploaded file named 1640
Thumbnail of the uploaded file named E1246577-60BF-4DAC-88D0-9E51854573D5.jpeg
Profile picture of Tom
Tom from SWISCO responded:

Thank you for submitting your inquiry to our discussion board.

It looks like you have either a series 351 or series 390 channel balance.

The difference between the two series lies in the bottom shoe.

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

The series 351 channel balance has the 15-002 shoe while the series 390 channel balance has the 15-001 shoe.

The 15-001 shoe is 1/8" larger from front to back.

I hope you find this helpful. Please let us know if you have other questions.

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.