Toro Precision Spray 180 Degree Nozzle with Screen for Hunter, Rain Bird and Irritrol Sprinklers, 10' Patented H0 Chip Technology - Using patented H0 chip technology - and no moving parts - each Precision Series Spray nozzles creates one or more high frequency oscillating streams Design and Retrofit Effectiveness Maximize Irrigation Efficiency - Precision Spray nozzles deliver an industry first 1"/hour (25mm/hour) precipitation rate, which better matches soil infiltration rate Third-Party Performance Validation - Precision Series Spray nozzles have been tested and validated in the field and at the Center for Irrigation Technology Optional Pressure Compensating Device (PCD) - Maintains optimal performance even when inlet pressure rises to 40 psi and higher