I'm looking for replacement window balances, however not sure which is the correct part. The markings I found on the ones I pulled out indicate 2130 AD BSI. The aluminum part measures 22in. Thank you.
Bob from SWISCO responded:
July 29, 2020
See our S350-22. Look over all the dimensions and specifications to ensure this matches your old balance. You'd need a stamp option of 2130.