8 Packs 4" Square Electrical , 2-1/8'' Deep Metal Electrical Junction , Galvanized$$Tools & Hardware Other

Knockouts: This electrical box is designed for multiple purposes with ten 1/2 inch knockouts and six 3/4 inch knockouts. Quality: This electric box is made of high-quality material to ensure durability, effectively prevent rusting. Dimension: It is 4 inches square and has a depth of 2-1/8 inches. Application: This 4 inch electrical box is designed to enclose wire connections, sockets, or switches. Ideal choice for exposing working applications. Package Include: 8 * 4" Square Electrical Box.