Casey from SWISCO responded:
April 2, 2020
Thanks for reaching out to us. Please take a look at our S350-37 channel balance. This comes assembled with a 19-002 balance top and 15-004 bottom balance shoe. Compare your nylon fittings with ours to confirm whether or not this balance is a match. If it is, then you can go with the 3640 option that supports a sash weight of 23-30 pounds. |