Windows are over 20 years old. Trying to identify and replace the 23" balance, 3/8" diameter. No markings, names or numbers are available.
Paul from SWISCO responded:
March 3, 2022
Thanks for writing in. For your 23" X 3/8" tube balance with nylon shoe, we believe you can use our S300-23 Spiral Balance as a replacement. Look it over and see if you concur.