Set of Two Galvanized Steel 4" Square Metal Electrical Box

GALVANIZED STEEL STRUCTURE: The metal outlet box 4x4" use of galvanized steel material, with high strength corrosion and pollution resistance | UL CERTIFICATION: This 4x4" electrical box is UL certified and has good safety and standards | FLEXIBLE INSTALLATION: The square plenum box has sixteen knockouts which means you can choose the entry position freely, and there is a ground emboss at the bottom for easy installation of ground screws and ground wires | MULTI-PURPOSE : Our electrical outlet box sets can be used in different indoor and outdoor places, such as basements, walls, ceilings, etc, beautiful and suitable | PACKAGE CONTENTS:Metal outlet box 2-gang 2(441-1/2",1.6 mm Thick);Electrical outlet cover2(445/8",1.6 mm Thick)26 screws