Help to id spiral balance

A home owner from Painesville says:
my spiral balance tubes are plastic that covers the spring and blue tip. I cut back the plastic tube on one picture. do i measure the plastic tube that goes past the blue tip or from the steel spring below the blue tip.

thanks Rich
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Hi Rich. Based on what you are showing us here, our S600-23 spiral balance with blue tip appears to be the best match for you. I do want to let you know that our balance tubes are made of metal and not plastic, such as what you are showing us. Take a look and let us know what you think.
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 adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
READ >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
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.