Need to identify what series balances I have

A home owner from Hudson, FL says:
I have several defective window balances, of various sizes. They all single hung, non-tilt, sideloading block & tackle style. The particular one in the photos has a stamp reading U B 28B
Thank you
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
This looks like our Series 380 channel balance. Check it out and let me know if you agree! I would recommend our S380-28 with a stamp 2820 option.
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)