Casey from SWISCO responded:
March 11, 2020
Thank you for your inquiry. Have a look at both our S351-35 and S390-35 channel balances. Depending on the 'depth' measurement of your bottom balance shoe will determine which of these two is the better match for your part. Whichever one chosen will go with a 3420 option that supports a sash weight of 13-18 pounds. |