Paul from SWISCO responded:
November 16, 2018
I agree, our Series 350 balance system looks like the best match for your Alcoa window. The channel length is puzzling, though. For stamp option of 1620, the metal channel length should be 17", not 15". Can you confirm both details? A 15" balance should have a 1420 option, for example. |
Tom from SWISCO responded:
November 19, 2018
You're correct, the metal channel should be the only thing you measure. Your metal channel should be 17" long, based on your stamp. I would double check just to be sure. Those nylon attachments shouldn't add a whole 2" to length. If you are confident your metal channel is only 15" long, then our S350-15 will work for you. You'll just have to weigh your sash on a scale and refer to the chart shown on the S350-15 store page to confirm the best stamp option. |