Square Boxes and Extension Rings are manufactured from durable pre-galvanized steel and are designed to house and protect electrical wiring, switches, receptacles and to support light fixtures. All steel boxes are UL listed and acceptable for use in 2-hour fire rated walls and ceilings. 8-32 fixture mounting screws are assembled. 4 in square and 1-1/2 in deep. Includes 10 1/2 in knockouts and six 3/4 in knockouts. Raised ground.
| Shape | : | Rectangular |
| Number of Gangs | : | 2 |
| Number of Knockouts | : | 16 |
| Cubic Capacity | : | 21 cu-in |
| Material | : | Steel |
| Cable Entry | : | Conduit |
| Mounting Type | : | Screw |
| Color | : | Gray |
| Dimensions | : | 4 in W x 1-1/2 in D x 4 in H |