Need a solid, reliable box for your electrical wiring project? This heavy-duty galvanized steel junction box is built to last. It measures 4 inches by 2 inches with a 21 cubic inch capacity, giving you plenty of room for wires and connections. The steel is galvanized for corrosion resistance and is UL listed, meeting safety standards for residential and commercial use (it's even rated for 2-hour firewalls!). It comes with 10 pre-punched 1/2-inch knockouts and 6 pre-punched 3/4-inch knockouts, so you can easily run conduit or cables from multiple directions. The shallow design makes it easy to mount directly onto studs. It includes a matching cover plate (for a duplex receptacle). Ideal for DIYers, electricians, or anyone doing renovations, new construction, or repairs. A trustworthy box that keeps your wiring safe and organized.