The Chief CMA105 4" (102 mm) Ceiling Plate is designed for ease of installation with any height of drop ceiling. By using any length of standard NPT 1-1/2" pipe at threaded both ends, you can extend the height capabilities to meet your needs.
It can also be combined with any Chief CMS Fixed or Adjustable Extension Column to customize your installation. Use where a short extension column will be used, or in installations where there may not be adequate space for a larger plate. Weight capacity is 500 lbs.