Outlet box Two gang Nail on outlet box with compound angled nails For use with non metallic sheathed cable 40.5 cubic inches Can be installed in the same stud cavity of a shared two hour wall May also face opposite directions with only a 3 horizontal separation and is ideal for multifamily construction Permissible for use with 90 C connectors Listed for masonry walls UL classified for 2 hour fire wall and or fire ceiling