2-1/2in deep, one gang Extension Ring masonry boxes are used for mounting switches, plugs, outlets and other electronic and electrical devices in masonry, brick and 4in block walls. Gangable masonry boxes offer installers the ability to add devices in the field. Garvin Industries' extra deep design allows for deep devices, numerous wires, switches and other electronic and electrical devices.

Specifications:

Type: 1-Gang, Extension, Solid
Height: 2.56 Inch
Width: 3.75 Inch
Depth: 2-1/2 Inch
Number of Knockouts: 6
Knockout Size: 1/2 Inch and 3/4 Inch
Material: Zinc Plated Steel
Standard Package: 5
Approval: UL, CUL