Switch-Device Outlet Box Extensions (Nonmetallic): Type - Switch Outlet Box; Application - General; Number of Gangs - 2; Capacity - cu-in - 42.9; Cable Entry - Knockouts; Material - Plastic; Device Mounting Holes - Standard; Additional Information - New work/Old work, Internal mounting holes; Manufacturer Series - One-Box
Additional Info: New work/Old work, Internal mounting holes