Tom from SWISCO responded:
May 25, 2017
Are you sure this is an Andersen window? That doesn't look like an Andersen brand operator. It's also hard to make out the diameter of the spline from your ruler. This measurement can be pretty specific. Check to see if it's 11/32". If so, I recommend our 39-336.
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Tom from SWISCO responded:
June 1, 2017
Your handle cover does say Andersen, but in terms of style it looks more like our 39-375 used by Truth hardware. If it is Truth, then the 11/32" spline would be the correct size needed. Take a look at the 39-337 and 39-157 extensions, along with the 39-157B to see if this could help with the 39-336.
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Tom from SWISCO responded:
June 6, 2017
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