A contractor from Punta Gorda Florida says:
May 16, 2016
I have an S380 Balance that is 23 inches and marked 22-9 and I don't see it on your web site catalog. Can you quote me two of these parts.
Paul from SWISCO responded:
May 18, 2016
Hey, Jim. You will need to weigh your sash and refer to the chart shown on our S380-23 store page. Stamps ending in "9" or "90" like yours use an old rating system that is no longer produced. However, one of our standard options should work. If your sash is heavier than anything we show, let me know and we can work from there.