Application:
These 4” square boxes with conduit knockouts are installed in walls or ceilings for lighting fixtures, switches, receptacles or other outlet devices. Square boxes are used to bring power to a number of electrical devices where multiple conductor runs are split in two or more directions.

Advantages:
Garvin Industries’ 4S Boxes can be surfaceor flush mounted when multidirectional conduit runs are necessary. Red painted boxes are also available to easily distinguish fire alarm circuits.

Field Names:
4S Box, 1900 box, 1900 electrical box, 1900 junction box, conduit box, J-box, concentric box, conduit junction box, outlet box, drywall mud box, plenum box, deep plenum box, 1900 plenum box, Chicago plenum box, 1900 plenum deep, conduit J box, conduit outlet box, deep 1900 box, deep 4S box, deep plenum box, 3/4” plenum box, Chicago plenum junction box, 1900 deep box, 1900 deep plenum box, 1900 deep fire alarm box, 1900 deep combo box.