Blank, 1-1/2 in D, 4 sq-in drawn junction boxes are installed in walls or ceilings for lighting fixtures, switches, receptacles or other outlet devices. They have no holes and knockouts making them tamper and vandal proof boxes. Garvin Industries can customize a solution for you by only adding the knockouts you need. 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 4S boxes can be surface or flush mounted when multiple direction conduit runs are necessary.