Aluminum finish commercial grade 3 standard duty door closer. Fits interior doors 3'' & exterior doors 2'' 6". Regular parallel arm or top jamb mount. Non-handed. Door opening up to 180 degrees. Adjustable sweep & latch. Retro fits traditional closer 9-1/6" horizontal & 3/4" vertical mounting holes.• 500 series• Chassis/Closer: Cast aluminum• Handing: Non-handed• Mounting: Tri-Pack "” regular, top jamb and parallel arm applications.• Main Arm: Stamped steel, accommodates reveals up to 3 1/4", adjustable extension arm• Spring Power: Adjustable 1 - 4 sizes• Backcheck: Adjustable, hydraulic - providing cushioning and preventing uncontrolled openings of the door• Valves: Adjustable, independent, non-critical (sweep and latch), consistent closing speeds• Metal screws included for hollow metal and aluminum mounting applications. Wood screws included for wood door mounting applications. Thru-bolts optional• Door Range: Up to 180 degrees• Door Preparation: 9-1/16" horizontal and 3/4" vertical mounting hole locations (retrofits traditional closer)• Performance: Complies with ANSI A156.4, Grade 3, 500,000 cycles, UL/ULC listed.