Switch-Device Outlet Box Extensions (Nonmetallic): Type - Switch Outlet Box; Application - General; Number of Gangs - 4; Depth in inch - 3.50; Width in inch - 7.50; Height in inch - 3.75; Capacity - cu-in - 80.0; Mounting Hardware - Screws; Cable Entry - Knockouts; Material - Plastic; Device Mounting Holes - Standard; Manufacturer Series - One-Box