Casey from SWISCO responded:
October 18, 2023
Hello, I can't be sure without seeing an undamaged assembly removed from the window but what I can make out reminds me of the S140 coil balance. Take a look and compare the dimensions below to yours. You may need the S140-12 based on the 6+6 stamp on your cover but I would recommend weighing your sash to confirm that it falls within the 23-24.99 lbs. range that these balances support. Thank you. Alternate image for S140-12
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Casey from SWISCO responded:
October 20, 2023
In that case, see the S140-18 coil balances that will support a sash between 35-36.99 lbs. I would still recommend removing yours from the window to ensure that the dimensions match our product image. You can also start by comparing the specifications of our 26-243 and 26-244 to your tilt latch. Profile view of 26-243
Alternate view of 26-244
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