replacement channel balance

A home owner from SAN JOAQUIN COUNTY, CALIFORNIA says:
June 9, 2020
I have a channel balance with the following number stamped on it: 29-12 C15 CMC 50. It appears your model S385-29 should work. The metal channel I have measures exactly 30 inches long. I am not sure of the weight number you need. See attached photos.
Please let me know exactly what numbers I need to order the proper complete replacement channel.
Thank you
Thumbnail of the uploaded file named 29-12 CMC
Thumbnail of the uploaded file named IMG_7819.jpg
Profile picture of Tom
Tom from SWISCO responded:
June 12, 2020

I'm afraid that our S385-29 will not replace this balance. You have a special configuration that necessitates a custom order.

We can help, but before we begin I would like to know how many you need. Once I know that, I can email you an order link and price quote for that quantity. Thank you!
A home owner from SAN JOAQUIN COUNTY, CALIFORNIA says:
June 12, 2020
Hi Tom. Thanks for getting back to me. I took a couple more pictures for you to look at. Hope they help. I weighed the window and it weighs a hair over 35 lbs. I need 2 of these channel balances. The window manufacturer is Milgard Windows and Doors. The window is about 6 years old (so is my house). It is a track house. Hard to figure why Milgard would use a custom channel balance in their windows, but this is California and someone's brother-in-law is probably the guy who supplies them! Anyhow, thanks for all your help.
Thumbnail of the uploaded file named CE2D6614-F729-4E9E-A707-9DEEA54AE451.jpeg
Thumbnail of the uploaded file named BA5AEF9E-1BAD-4AEE-8CD5-F24C060A34F2.jpeg
Profile picture of Tom
Tom from SWISCO responded:
June 15, 2020

Thank you! This information is perfect, thanks. To clarify, the balance itself isn't custom. It's just an uncommon model that we can't provide as a stock part, this we have to supply it through a custom ordering process.

I'll email you that order link and quote now.
29" Series 385 Channel Balance
29" Series 385 Channel Balance
S385-29
$11.10
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.