Jasmine from SWISCO responded:
April 4, 2023
Thanks for posting. Your coil balance looks similar to our Series 140 coil balance assemblies. To confirm the correct strength for your windows, you'll need to look for any stamps/markings on the housing or coil of the balance assembly. Alternate image for S140-12
If there are none, you'll need to obtain the exact weight of your window and divide it by the number of coils in the window. For example if your window weighs 24lbs, you'll need the S140-12 to support a 24lb window. Let me know if you have any questions. |