Four Inch Square Electrical Box With Cover, One And A Half Inch Deep Metal Junction Box, 21 Cu In Capacity, Galvanized Steel, 16 Knockouts With 10 Half Inch And 6 Three Quarter Inch, Fire Rated Wall Ready, Heavy Duty Wiring Box

4x4 in Galvanized Steel Electrical Box with Cover, 21 cu in
✔️ Single 4x4x1.5 in galvanized box, 21 cu in, 16 knockouts

This four-inch square metal electrical box with cover provides a protective enclosure for wiring connections and devices inside walls. It's built from galvanized steel to resist corrosion and features 16 knockouts for flexible wiring layouts. The box is fire-rated for 2-hour walls, making it suitable for residential and commercial installations.

✅ 4x4 inch square box with 1-1/2 inch depth
✅ 21 cu in capacity for wires and devices
✅ 16 knockouts (10 x 1/2 in, 6 x 3/4 in) for flexible installs
✅ Galvanized steel construction resists corrosion
✅ Fire-rated wall ready for 2-hour code compliance
✅ Enclosed housing reduces contact hazards and keeps wiring neat

💡 What is a typical use for a 4x4 electrical box in home wiring?

This handy box shields splices and keeps wiring organized inside walls. - shields splices and terminations in walls - supports 16 knockouts for flexible wiring layouts - galvanized steel enclosure provides durability and corrosion resistance - fire-rated design helps meet building codes and safety requirements