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Jasmine from SWISCO responded:
May 15, 2023
Hey there, thanks for reaching out. Your coil balance pivot shoe looks like our 15-111 . Carefully compare the measurements to your existing pivot shoe to confirm that this is the right fit.
Alternate image for 15-111
The compatible coil spring is the Series 160 Coil. To determine exact which spring is needed for your window, you'll need to look for any stamps/markings on the metal coils connected to the shoe. If there are no stamps/markings, you'll need to obtain the exact weight of your window. Once you have the weight, you'll need to divide it by the total number of coils in the window. This will give you the spring strength needed for each coil. |
