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Casey from SWISCO responded:
January 4, 2024
Hello, We'd be happy to help but we can't be sure of what you need without seeing an undamaged balance with an intact spiral end. With that being said, you can start by looking over the S400-26 and S500-26 spiral balance. The determining factors would be if your housing tube has a diameter of 3/8" or 5/8". 7/16" is closer to 3/8" but I would recommend double-checking your measurement to confirm. You'll also need to check an intact balance from one of your windows to confirm that it uses the same cross style shown below. 
How to measure the length of the Series 400 spiral balance
Once you determine the correct spiral balance series, you'll also need to weigh your sash and follow the chart under the balance product description to choose the corresponding tip color. Take a look and let us know if you have any other questions. |
