1-1/2 in D, 4 sq-in welded Junction Box with flat vertical brackets and clamps for non-metallic sheathed cables are installed in walls or ceilings for lighting fixtures, switches, receptacles or other outlet devices where non-metallic sheathed cables are used. Square boxes are used to bring power to a number of electrical devices where multiple conductor runs are split in two or more directions. Garvin Industries 4 sq-in boxes come with built in clamps for non-metallic sheathed cables to speed up installation and save connector costs. GARVIN®, 52151-FR, Junction Box, (3) Side, (1) Bottom Knockouts, (2) 1/2 ,(1) 1/2 to 3/4 Side, (1) 1/2 Bottom in Knockout, Square Shape, Vertical Mounting, Steel, Galvanized, 4 in H x 4 in W x 1-1/2 in D Dimensions