Tom from SWISCO responded:
July 26, 2017
Thanks for posting. The number on the balance isn't indicative of any exact physical aspect. A stamp of 2130 indicates a length of 22" long, so assuming your balance had the same 19-002 top and 15-004 bottom as our S350-22 then I think this was a good choice.
However, the balances in your pictures are different. These look like they have a 19-005 top and 15-004 bottom, which is closer to our Series 385 channel balance. You also have a stamp of 27 3, which corresponds to a 28" long balance with a 2730 option, and a 33 3 stamp, which corresponds to a 34" long balance with a 3330 option. I hope that makes sense, I know it can be a little confusing. As for the top sash guide, see our 18-171 instead. |