400 Series Double Hung Window Parts

Professional from Oshkosh wi
Oct 21, 2024 2:42 pm
Need to track down the right parts for 400 series double hung windows
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Lauren from SWISCO
Oct 25, 2024 12:44 pm


Hello, thank you for posting,
Your balance assembly resembles the Series 161 coil spring. It also uses the 15-086 tandem housing that is compatible with the Series 180 coil springs.
The original housing appears to be stamped with a (7), which would be the S161-07 balance. Is there a number stamped on the tandem housing or on the coil spring itself? This number would indicate which weighted option is needed for the Series 180 spring.
For the pivot bar, please start by reviewing the style and dimensions of the 26-398 or the 26-405. Let us know if you have any questions!
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