Window will not stay up in any position

A home owner from Colorado says:
I took the window apart. I do not have a tip color on mine.

The balance is 25? long
diameter is 5/8?

And the spiral is 25 3/4 inches long.

What do I need to purchase to fix my window.
Thumbnail of the uploaded file named 19435482-A044-4FD6-BF29-C791DC784A18.jpeg
Thumbnail of the uploaded file named 8D7701F0-636F-40E5-89D0-42DA27EED0EF.jpeg
Thumbnail of the uploaded file named D0F22099-507D-4810-A536-9C785AFC1437.jpeg
Thumbnail of the uploaded file named CE8FD9B5-6B86-47A2-8E75-4FA1A4181AF0.jpeg
Profile picture of Tom
Tom from SWISCO responded:

It sounds like you need a new balance. Since the diameter is 5/8" and the length is 25", you want our S600-25. You'll have to weigh your sash on a scale to confirm the best tip color.

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