The LCN 4631-STD 689, is a  Grade 1 Standard Arm Auto Equalizer Door Operator that is 120V, has Pull Side Mounting, is Electrohydraulic, comes with a Slide Track Arm Standard, for Door Sizes 36" - 48",  and comes in Aluminum Finish.

4630 Series Electrohydraulic Operators

The 4630 Series is a smart and reliable electrically low-energy power operator.

• Standard, top jamb (pull side) mounted 4630 series closer shipped with single lever (standard) arm, metal cover, standard track, and wood and machine screw pack. Actuators are available separately, see pages 199-215 of the Catalog
• Meets ADA requirements (power mode).
• Non-sized cylinders for interior doors to 4’0” and exterior doors to 3’0”.
• Non-handed for either right or left swinging door.
• 4630 has easily accessible switches to provide on/off and continuous hold-open functions. 4630CS provides concealed on/off power switch. The control module provides all timing and sequential door functions, electric strike controls, and adjustments for opening speed and force.
• Standard or optional custom powder-coated finish, end caps are black.
• Optional plated finish on cover, arm, and fasteners.