Andersen E-Z Split Arm Operator, Universal Handing, 1995 to Present Split Arm Operator, Universal Handing, 1995 to Present. Universal for use on both left and right hand units. A Corrosion resistant version of this operator is available, search for B00WIXH7SK Pre 1999 operator covers will not fit this E-Z operator, search for B008QPT1GK or B008Y1XJY6 For units manufactured from 1995 to present, for units from 1995-98 use adapter plate # 9050723