CRL/Jackson&Acirc;&reg; Regular Duty Spring 105 Degree Non Hold-Open Overhead Concealed Closer 21101GE01 3/16&quot; (5 mm) Height Adjustment 5 Year Limited Warranty Suitable for Doors from 30&quot; to 48&quot; (762 mm to 1.22 m) Wide Threshold Mounted Pivot for 1-1/2&quot; (38 mm) Deep Bottom Rail UL Listed