SWISCO - The Replacement Hardware Authority

Trying to identify and replace rail and spring for GAPCO windows

A landlord from Wauconda, IL says:
The rail is 5/8" tall and 1/2" wide. The rail is 28" long. The rail has 2730K stamped on it. Thanks for your help!
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Tom from SWISCO responded:
Thank you for posting, most Gapco windows including yours will use our S385-28 side load balance with a spring weight 2730 option. I suggest you compare our dimensions and pictures to your hardware, just in case.
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