... appperence, all kind sof junction box name:swithc box, 2 gang box , 1 gang box,flushing box2) sizes: 3"x3 ... )No rust occurs like metal pipe ,gang box with no smell attracting rotent ,will no ... gang box are used as surface mounting control box , junction box or general service box7)switch box protects ... construction ,equipment, component9) PVC 2 gang box, 1 gang box with no smell attracting to rent ,will ...