Window Operator

A quick learner from Tampa, Fl says:
August 20, 2017
I am looking for a replacement to this part. It has 3 "arms" for a lack of a better description but what I've seen in responses to a replacement for 31580 only has two. Can you help please?

Thank you
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
August 24, 2017
Your operator looks like our 39-315. That piece at the end isn't one of the linkage arms, it's just a bracket. You can probably actually replace it with the new 39-315.
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