... :switch box, 2 gang box , 1 gang box,flushing box,surface box, mounted box 2) sizes: 3"x3",3"x6"box ... special order are available6)2 gang box are used as surface mounting control box , junction box or general service box7)switch ... ,electrical equipment , components12)PVC 2 gang box are used as surface mounting ,control box , switch box or general service box square ...