replacement crank operator

A quick learner from US says:
Measures 11-1/2". Please let me know what you think it is. thank you
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Tom from SWISCO responded:

We don't have an operator in that size, unfortunately. The only possible matches we have are our 39-014, with a 13-1/2" long arm, and our 39-028E, with a 9-1/2" long arm. I recommend reviewing the photos we show on each operator's store page to see how we measure operator arms. check to see if one of these may be a good match for you.

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