The DIG Drip Irrigation Pressure Regulator is used to reduce and regulate the incoming pressure of a households water entering a drip irrigation or micro sprinkler system to the appropriate operating pressure of 25 PSI, which is within the range of recommended operating pressures for a micro irrigation system. The pressure regulator's design includes few moving plastic parts and a diaphragm which regulates itself in reaction to the overall system back pressure. The drip irrigation water pressure regulator offers exceptional pressure control and provides consistent outlet pressures over a wide range of incoming pressures.