Hubbell-Raco 400 1-1/2-Inch Deep Switch Electrical Box, Gangable with Plaster Ears, (2) 1/2-Inch End Knockouts, 3-Inch x 2-Inch With proper fitting can be used for conduit, nmsc, armored, metal clad, flex cable Switch boxes are used to house wiring devices such as switches or receptacles 7.5Cu. In. Capacity Acceptable for use in two hour fire rated wall The product is ul listed