Adapter plate 39-264

A professional from USA says:
Do I need the adapter plate ( 39-264)?
User submitted photos of a window operator.
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Tom from SWISCO responded:
It would depend. The 39-362 is for Perma-Shield Enhanced casement window units manufactured from 1995 to 1998.
Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
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Anatomy of a casement window
Anatomy of a casement window
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