Magnet valve triple from the manufacturer Spraying Systems AA144 with a max. flow of 38 l/min per part at 0,34 bar pressure decrease and the max. pressure is at 7 bar. The valve can be enlarged to a block and have additionally to the in- and outlet a bypass, too. The current consumption 2,5 A, connection thread 3/4". The casing and the interior is liquid fertilizer resistant.