SWISCO - The Replacement Hardware Authority

Window spring

A quick learner from New jersey says:
I need the springs the both hold the windows up for both sides but I don't know what kind of windows they are
I do know that the windows wait 8 pounds if that helps and here's the picture
User submitted a photo of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. Please see our 15-177 shoe and Series 152 coil spring. If the window sash weighs 8 pounds, I'd go with the S152-4. Each individual S152-4 can carry 4 pounds each, so two working together should be perfect.
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