Jasmine from SWISCO responded:
October 30, 2023
Thanks for reaching out! Your casement window operator looks a lot like our 39-329 LH Inverted Split Arm ROTO Operator. The opposite handed version is our 39-330. The operator you have pictured appears to be connected to the window using the 39-553 Roto Sash Bracket. The 39-330 would likely use the 39-554. You may also need the 39-232 Roto Folding Crank Handle. To confirm that these operators are the right fit, carefully review and compare the dimensions below. Alternate image for 39-329
Side profile view with measurements
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