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Casey from SWISCO responded:
November 30, 2020
Hello, thank you for writing in. You will need our 15-087 coil housing pivot, which works with the Series 180 coil spring. There should be a stamp or imprint on your original spring that will tell you which weight option to select. Let me know if you have any further questions! |
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Casey from SWISCO responded:
December 1, 2020
What you can do is weigh your window sash. You will then want to take that number and divide it by the number of coil springs per window. For instance, if you have a 10 pound window and 2 coil springs, then each one will be 5 pounds. Let me know if you have any further questions! |
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Tom from SWISCO responded:
March 11, 2021
That patent number doesn't tell us anything, unfortunately. I recommend reviewing the suggestions Julia made in her prior posts and applying that to your hardware. Everything she went over is exactly the right process for identifying this type of hardware. |
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Tom from SWISCO responded:
March 11, 2021
Yes, that is correct. The number will be printed on the band of the spring. |
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Tom from SWISCO responded:
April 13, 2021
Great! Thank you. That would be the S180-7. These carry 7 pounds each, so if you only have one spring on each side of the sash, then the sash ought to weigh 14 pounds. |
