... pcs, 4 meter/pc, First plasticWater Pipe: 2 pcs, 4 meter/pc, Round pipe,new plasticNipple drinker: 16 pcs/Unit ... Steel ball nipple drinkerWater pressure regulator: 4 pcs per row. ABS materialCage clip, Water pipe clip ... , Feed trough clip, Manure collect plate, Growing chicks foot mesh. ...