Heavy Duty Welded Steel Four By Four Junction Box And Blank Cover Kit For Pro Grade Installations, Four Inch Square Electrical Box With One And A Half Inch Depth, Flat Blank J Box Cover, Twenty One Cubic Inches Capacity
✔️ Single 4x4 steel box, 1-1/2 in depth, 21 cu in
The heavy-duty welded steel 4x4 junction box is built for pro-grade installations where strength and reliability matter. This single-unit kit includes a flat blank galvanized steel cover to fully enclose wiring and allow future access for changes or expansions. A raised ground feature enhances bonding reliability and grounding continuity, while UL Listed construction supports code-compliant residential and commercial electrical work. Dimensions: 4 in square footprint, 1-1/2 in depth; capacity is 21 cubic inches.
✅ Welded steel construction for rigidity and durability
✅ 4 in. square footprint for easy layout
✅ 1-1/2 in. depth provides ample wiring space
✅ Raised ground improves bonding and UL Listed safety
✅ Flat blank galvanized steel cover included to seal and allow future access
✅ 21 cu in capacity suits standard residential and commercial wiring
💡 What is a heavy duty welded steel 4x4 junction box used for in electrical installations?
It’s a handy, sturdy enclosure for protecting splices and terminations in walls or ceilings, helping keep wiring safe and code-compliant.
- Protects splices and terminations in wall/ceiling installations- Supports reliable grounding with a raised ground feature
- Flat blank cover enables future access and expansion