Spiral balance and bracket assistance

A quick learner from US says:
Wanted to know if you can help me determine what balance I need. I believe it is a 9/16 but it does not have a color. Attached is a picture and it will also need the little bracket to attach├ęd it to none tilt window.
Thumbnail of the uploaded file named Image (1).jpg
Thumbnail of the uploaded file named Image (2).jpg
Thumbnail of the uploaded file named Image (3).jpg
Thumbnail of the uploaded file named Image.jpg
Profile picture of Tom
Tom from SWISCO responded:

I recognize this old balance. These haven't been made in a long time, but you can use our Series 500 as a replacement, along with our 17-012 bottom bracket (sold separately).

Since your old balance doesn't have a tip color, you'll need to weigh your sash on a scale to confirm the best choice for the Series 500. We have a chart on each balance's store page that tells you how much weight each tip color supports.

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)