Yale Size 1-4 ADA Hold Open Door Closer Adjustable door closer size 1-4 holds door open in the 85 deg range. ADA Americans with Disabilities Act performance and ANSI American National Standards Institute /BHMA Home Builders Hardware Manufacturers Association 156.4 grade 1 2 million cycles . TriStyle packed for regular, parallel, or top jamb mounts, adjustable backcheck, and closing and latching speed valves with 5 year warranty. Housing length 9-3/4 , 2-7/8 projection from mounting surface. 1-7/8 wide. Mounting holes 9-1/16 on center, 2 on each side 3/4 on center. Cannot be used in fire rated door openings. Type Hold Open, Finish Aluminum, Chassis Style Hold open, Closing Speed Adjustable, Pkg Qty 1, Package Type Box