2030 Series, Refurbished LCN, Concealed Closer, Heavy Duty Overhead Concealed Door Closers (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. Available in Left and Right Hand, Aluminum.