Andersen window balancer

A quick learner from Topsham, ME says:
Do these balancer come in different sizes?
Profile picture of Bob
Bob from SWISCO responded:

Andersen balances are calibrated to work with certain windows. This is determined by the stamp codes on the metal box. One clump of numbers on the metal box will tell us the replacement you need. You can find out more about Andersen balances in this blog article here .

How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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