Refurbished 2030 Series, LCN, Concealed Pacer, Heavy Duty Overhead Concealed Door Closer (Body Only) Designed to Fit in a Narrow, Minimum 1-3/4" Aluminum Transom, Single Lever Arm and Roller Assembly Provide Smooth, Quiet Door Control, Ships with Standard Arm, Standard Track, Mounting/Finish Plate, Wood and Machine Screw Pack, Aluminum Frame Requires Minimum 1-3/4" x 4" Tube, UL & cUL Listed for Self-Closing Doors, Without Hold-Open, ANSI Standard A156.4, Grade 1, Right Hand, Aluminum