hi guys I've got this #'s on my 21" balance- 20 2 KU CMC 2. which stamp option is that? thank you Boian
Casey from SWISCO responded:
January 15, 2021
Hello,
If you're sure that the S385-21 is an exact match for your balance, you can use our 2020 strength option that supports a sash weight between 8 and 12 lbs. Thanks for posting!