Arlington 4×4 Non Metallic and Plated Steel Boxes FSCB24 25/BOX

Designed for secure installation within concrete block walls, this steel single gang box by Arlington Industries features 1/2″ and 3/4″ knockouts for versatile wiring options. The innovative spring steel clip ensures the box holds firmly against the wall when screws are tightened, providing added stability during use. With a capacity of 22.0 cubic inches, it accommodates various electrical applications while maintaining a compact footprint. Crafted from durable steel and finished in a sleek silver color, this box is not only functional but also compliant with cULus standards, making it a reliable choice for contractors and DIY enthusiasts alike.