Window balance Channel

A quick learner from Miami,Fl says:
To whom it may concern
The length of the window Channel metal to metal end 30 in
See photo above for plastic ends.
Could not find any numbers anywhere. I need to know your part number to order.
thank you, Mitchell Feldman
Thumbnail of the uploaded file named 20190607_160352.jpg
Thumbnail of the uploaded file named 20190607_160211.jpg
Profile picture of Paul
Paul from SWISCO responded:

Many thanks for your correspondence. We can replace this 30" channel balance for you, but it will have to be custom made with the 19-042 Top Attachment and the 15-005 Bottom Nylon Attachment. If there is no spring number on the metal channel, we will need you to weigh the window sash. We will need that exact weight before we can get this order started for you. Many thanks.

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 4-7 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 856-317-6263 or at