Balance for window approximately 20 years old

A quick learner from Salisbury nc says:
Need two of them, Windows approximately 20 years old
User submitted a photo of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Sure! Check out our 15-180 shoe, Series 190 spring, and our 15-186 clip and 15-182 bushing if you need them. Let me know what you think.
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