... ,white PVC manger, ball valve type automatic water equipment, white PVC water pipe, 3MM U type steel galvanized shelf, closed-end ... galvanized, use life is for 15 years.5.Ball valve type automatic water equipment: 360-degree rotating design, big flow rate, ... years, replacement for free. (Except artificial damage)6.Enclosed type compressor governor: the fully closed design, pressure regulating and ...