... white Square stamping conduit 1) name:switch box, 2 gang box , 1 gang box,flushing box,surface box2) sizes: 3"x3",3 ... components12)PVC 2 gang box are used as surface mounting ,control box , switch box or general service box 3x3 box , pvc material . ... 200pcs/outer packing 3x6 box , pvc material ,200pcs/outer packing 3x3 plastic surface box ...