Powered Door Operator, Norton 5721 Closer Series, Interior and Exterior, Automatic, Hydraulic, Closer Performance Heavy Duty, Closer Type Electronically Controlled, Non-Handed, Ligature No, Closer Mounting Style Regular, Standards ANSI A156.19, Yes, Finish Aluminum Painted, Arm Material Steel, Arm Type Slide Track, Stop (Push) Side, Color Aluminum, Exterior Door Width 48 in