find the right balancers for vinyl windows

A contractor from San Francisco says:
The exisitng balancers have " 20 -3 " stamp.

metal to metal length is 21" , 9 /16" width

Will the 21" series 390 S390-21 2030 match the existing?

Profile picture of Tom
Tom from SWISCO responded:
Hey, Freddy. I honestly don't know if our S390-21 is what you need. All I can tell based on your information is that it's 21" long and uses a 2030 stamp option. The only way to confirm if the Series 390 is right is to make sure its nylon end pieces are the same size as yours.
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)