The Closer is packaged complete with Cat.
The CRL Jackson 21101 Series Overhead Concealed Closer with 'U' Side-Load Hardware Package consists of a Spring Power Adjustable Closer mechanism, which depending on the selected spring size and closer function, is suitable for a range of doors from 30 to 48 762 mm to 1. 90Deg and 105Deg, Hold Open and No Hold Open models are available. Adjustable Spring Power 105DegNo Hold Open Overhead Concealed Closer W/ 'U' Side-Load Hardware Pack 201380 Mounting Clips, 20400B Side-Load Arm, Type GE 20944 Bottom Pivot Set for Threshold mounting, and complete installation instructions.