Pushbutton Enclosures: Type - Pushbutton Enclosure; Material - Plastic; Finish - Grey; Hole Size - Standard 22.0mm; Number of Holes - 1; Height - in - 3.34 in.; Width - in - 3.34 in.; Depth - in - 2.51 in.; Mounting - Front/Floor; Entry - (1) Hub M20; Manufacturer Series - 3SB3