ventarama opener

A quick learner from Randolph Ma says:
My old Ventarama opener is broken the thread on the metal hook is stripped. Will your opener work.
User submitted photo of their window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
We don't have this exact operator, but I wonder if our 39-379 could work. It appears to work on the same principle as your operator, but I'm not sure. What do you think?
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