milgard window crank replacement

A quick learner from WA says:
April 28, 2020
which is left or right? window lock is on the right when looking at it from inside.
39-216 or 39-217?
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Casey from SWISCO responded:
May 1, 2020

Hello. There is no left or right standard in the industry but we determine left from right with these operators by comparing the position of the gears holding the arm to yours. The 39-217 gears are to the left of the handle spline, while the 39-216 gears are on the right. Thank you!
Single Arm Window Crank
Single Arm Window Crank
39-216
$40.39
Single Arm Window Crank
Single Arm Window Crank
39-217
$40.39
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