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Casey from SWISCO responded:
June 29, 2022
Hello, I would recommend starting by comparing the S371-34 channel balance to your original assembly. Also, the balances from the same window should have the same stamp codes. If the 3340 and 3350 balances are from the same window, I would recommend weighing your sash and following the chart under our balance product description to make sure that you choose the correct strength options for your window. Thank you! |
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Casey from SWISCO responded:
June 30, 2022
Great, as long as the end fittings are the same then you can use the S371-34 for both windows but one will need 3340 strength options while the other requires 3350. It's a bit strange that your width measurements are different but the 3350 balance channel looks a bit banged up, which could account for the difference. Please note that the S371 balance measures 1/2" wide. Thanks for posting! |
