Crank operator just slightly different...

A quick learner from Massachusetts says:
Hi Swisco,

Please see the attached picture of my old crank and the incorrect ones we ordered (39-172 and 39-171).
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
I'm not sure what your exact dimensions are, but see our 39-317 and 39-318. These may be the operators you need.
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