Paul from SWISCO responded:
August 28, 2015
Thanks for posting, David. Based on these pictures, I would recommend looking at our Series 385 channel balance for both cases. Just make sure the nylon attachments are the same size.
Specifically, look at our S385-26 with a 2530 option and our S385-14. For the S385-14 option, I recommend that you weigh your sash, since "13 9" does not correspond to any of our standard options. We have a chart on the S385-14 store page that lists each of our options and how much weight they can support, so all you need to do is reference that chart after you weigh your sash. |