casement window operator, left or right?

A quick learner from Pompton Plains, NJ says:
How do I determine left or right operator (39-146 & 39-147)?
Profile picture of Donna
Donna from SWISCO responded:
Carefully match up the operator you are replacing to the pictured 39-147 right hand or the 39-146 left hand.
If you still have trouble figuring it out please feel free to send us a photo of the operator.
A home owner from east northport, NY says:
I would like a casement window crank for awindow that opens to the right,handle included.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
The best way to choose an operator, is for you to remove your existing operator from your window and match it up to the operators on the website or send us photos of your operator and we'll see how we can help.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at