Need ordering numbers for two windows

A home owner from Roseville, California says:
August 7, 2023
Window 1:
28" L metal part only
one half inch width
One side of window marked 27 3 CALDWELL GM
Other side barely readable CALDWELL GM (other numbers not visible)
Window 2 (same as Window 1):
same as above except:
One side marked 27 8 Caldwell FM
Other side not visible
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Lauren from SWISCO responded:
August 8, 2023

Hello, thank you for posting,

Your balance resembles the S350-28 channel balance. Please review the overall style to confirm. As for the stamps. The 27 3 translates to a 2730 stamp option that can support a 13 to 19 pound window sash. I recommend weighing the window sash to confirm that the window sash falls into this range. 

We do not have a stamp that translates from the 27 8 stamp. To further review, are you able to provide the weight of the window sash? The sash will need to be removed and weighed on a bathroom scale. Thank you! 
A home owner from Roseville, California says:
August 9, 2023
Hi, thanks for quick reply. Sash weighs 17.3 lbs, within the limits of the 2730 option on S350-28. All other measurements look ok. I guess I'm good to go. thanks for your help.
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Lauren from SWISCO responded:
August 9, 2023

No problem! Let us know if you have any future hardware questions. 
28" Series 350 Channel Balance
28" Series 350 Channel Balance
S350-28
$10.97
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