Red or blue?

A home owner from Maryland says:
I think I can replace the spiral balance rods in my windows--it seems a straightforward process--but noticed that some of the windows have blue bushings while most have red. How can I tell which ones to use? Is it by the weight of the tilt window? Please advise. Thanks!
Profile picture of Tom
Tom from SWISCO responded:

Yes, it is by the weight of the window. Each balance has a chart on its product page, and the chart tells you what weight range is covered by which color. The red and blue ranges overlap a little, so it's not unheard-of to alternate the two colors.

For peace of mind, you should know that if the window worked well in the past, you'd usually be safe to just use the same exact balance that was removed from the window. See whether you want to replace the exact balances, or whether you want to weigh to verify the tip colors.

How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
How To Choose the Proper Spiral Balance Tip Color
How To Choose the Proper Spiral Balance Tip Color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
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 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 (888) 991-1929 or at help@swisco.com.