Truth Casement Operator

A quick learner from Canada, Alberta says:
Hello I am looking for a Right and a Left Casement operator, the numbers on the back are 40055 and 40056. I have tried to measure the arm and I come up with a measurement of 11.5" from the pivot to the end of the nylon roller
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
You could have an older model casement operator with an unusual arm length. Take a look at our 39-013 and the 39-027E. See if either could replace yours. Take note that it would be better to have the arm be a little shorter than longer.
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