Bob from SWISCO responded:
February 4, 2021
Looks like you have either an S380-30 or S385-30 Channel Balance. The only difference between these two balances is the depth of the bottom nylon shoe, or the heel-to-toe measurement, so compare both with your old hardware to see what matches best. In either case, use 2950 as the new stamp option. The Top Sash Guide might be either the 18-199 or 18-190, but you'll need to remove your old one and compare the dimensions to confirm if either could work for you. |