6-Set 4X4 Metal Electrical Junction Box Set Includes 1-Gang Exposed Work Cover, 21 cu. in. Capacity, 1-1/2" Deep, Galvanized Steel for Double Duplex Receptacle (6 Boxes + Covers)

[Structural Material]:Engineered for maximum reliability, our heavy-duty galvanized steel boxes deliver exceptional durability and fire resistance - certified for 2-hour firewalls while maintaining superior structural stability
[Product size]:Our spacious 4×4" galvanized steel box provides safe, organized wiring with ample room for equipment. Ideal for secure electrical setups. Please verify dimensions before ordering
Easy to install]:Our electrical boxes feature a user-friendly design with ultra-shallow profiles for direct stud mounting. The multi-function screws enable quick fixture attachment using standard flathead drivers, minimizing complexity and eliminating the need for professional installation
[Scope of application]:Ideal for home renovations, construction projects, and commercial installations, our durable square electrical boxes adapt seamlessly to any electrical system with their multifunctional design.
[UL certified]:These UL-listed galvanized steel ceiling junction boxes are crafted from premium steel for superior durability and extended service life. The robust construction reliably meets all electrical wiring requirements, making them ideal for long-term ceiling installations with stable performance