Chief Universal C-Clamp Ceiling Plate and Adapter - Steel - Black

This Chief ceiling and adapter clamp clamps to any structure up to 2 3/4" / 70.1mm OD (including 2" x 4" structures) and includes an opening for 1 1/2" NPT extension column. Provides quick, versatile installation of presentation equipment and allows cable routing through the column. Especially advantageous for mounting equipment in exhibit booths.