1-1/2 inch deep 4-in square drawn boxes with Chicago plenum (8) 1/2-in & (4) 3/4-in side and (3) 1/2-in & (2) 3/4-in bottom knockouts are used in all plenum air spaces. These boxes are used to install 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. Garvin's 4S Boxes can be surface or flush mounted when multi-directional conduit runs are necessary.
Garvin 52151-SVT Includes
Air Tight Plenum knockouts and nail holes
Garvin 52151-SVT 4"x1-1/2" Square Chicago Plenum Junction Box
