900 series, 12916 commercial grade 1 door closer with cover, 2 million cycles, adjustable size 1-6, fits doors from 2′ to 5′ width, aluminum finish, ul listed 3 hour fire rated, ada compliant, retrofit hole pattern 5″ horizontal x 2-1/4″ vertical measurements, tri-packed for regular, top jamb & parallel arm applications, adjustable spring tension, sweep & latch valves.