I need to replace a pozzi window crank

A home owner from Boulder CO says:
I have Pozzi casement windows with white crank handles that came with my house when I bought it. I am trying to find a replacement crank operator hardware for 1 right handed window.

I have attached photos of the handle and case, with a ruler for size, and several looking down on the arms that push the window open. I believe I need to replace all of it.

The longest piece that is attached to the window is 13 3/4" long and the id on one white arm (see pic) is 20810A.
I also have pics of the inside of the mechanism if you need them.

Please can you tell me what to order?
Thank you,
CJ
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Tom from SWISCO responded:

Hey, CJ. I'm very confident we have all the parts you need to repair this window. Start by looking at our 39-031 and 39-032 operators; the operator in your photo is specifically the 39-031

If you also need a new cover and handle, see our 39-107 and 39-114L.

We carry other parts for this window, but you only need to replace what's broken. Start with these and let me know if you need anything else!

A home owner from Boulder CO says:
I'm concerned because the handle on your part doesn't match my handle. Specifically mine has a one inch piece that projects straight out of the operator and then it bends for the shaft of the handle. The one in part 39-114L does not.

Also, what is the "spline" that should be 11.32" ??

Thanks,
CJ
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Bob from SWISCO responded:

Hi CJ. The specific contours of the handle really don't matter. If you wanted something more in the style of your old handle, you could consider our 39-114. But the most important dimension is that spline size. The spline is the 'male connector' that the handle attaches to. 11/32" is the diameter of that spline. In any event, if you're replacing your operators with our 39-031 or 39-032, they are compatible with 11/32" crank handles, so there shouldn't be any issue there. 

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