nVent Hoffman - Hoffman ASG18x18x4NK Screw-Cover Pull Box / Enclosure, No Knockouts, Type 1, 18" x 18" x 4", Gray, Steel

Screw-Cover, Type 1, is used in commercial and general industrial applications that require a junction or pull box. It is available in painted or galvanized finishes, with or without knockouts, and in a wide range of sizes. It has a variety of accessories for flush installations and wiring space extensions. Features: Unique keyhole screw slots in the cover; Available with or without knockouts; Various sizes of easy-to-remove concentric knockouts on all four sides of standard boxes with knockouts; Optional flush-mounted door frame available; Optional flush covers; Flat, removable covers fastened with plated steel screws; Provision for grounding; Mounting holes on back of box; Enclosures are finished with paint over plated surfaces