SWISCO - The Replacement Hardware Authority

Anderson window balancer (windows are from 1977)

A handy person from Mantua, NJ 08051 says:
removed balancer and obtained stamped part number on unit: E40 9P27 177
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Tom from SWISCO responded:
In that case, I recommend our 24-939. This can replace Andersen balance boxes with the stamp 9P27.
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