Prime-Line H 3670 Window Operator, For: Pan-American Awning Windows, Right, Aluminum, Baked-On EnamelH 3670 is an awning operator of aluminum die cast construction with a gray baked enamel finish used on Pan American windows. It is right handed with a matching crank handle with a 2 5 8 in link arm. It has an L shaped mounting hole pattern that has 2 top holes that are 5 1 4 in from center of the top holes to the center of the bottom hole and the 2 horizontal holes in the bottom leg are 1 5 16 in apart. Unit: CD UPC: 049793036704 Model Number: H3670