all kinds of switch box ,flushing box , sizes: 3"x3" ,3"x6" ... conduit box 1) name:switch box, 2 gang box , 1 gang box,flushing box,surface box, mounted box 2) sizes: ... mounting control box , junction box or general service box7)switch box protects wire and cable from easy damage8)Installation ... box are used as surface mounting ,control box , switch box or general service box square 3x3 surface box/ ...