Non-conductive and requires no grounding Non-distorting in high heat Allied Molded Products FiberglassBox™ 2-Gang Residential/receptacle electrical switch box in beige/tan color, features fiberglass reinforced thermoset polyester construction. This rectangle box measures 4 Inch x 3-3/4 Inch. It has a capacity of 37 Cubic-Inch. This vapor seal box is angled mid nails Speed Klamps™ mountable. It is suitable for use with non-metallic sheathed cable. Box is UL listed and meets ANSI standards.