Toro O-15-Q Black Precision Series Female Threaded Nozzle with 15' Radius and 90° Arc are the most efficient spray nozzles available and feature proprietary H2O Chip Technology. With a precipitation rate of 1” per hour, Precision™ Series Spray Nozzles help irrigation professionals better manage water usage, eliminate runoff, and reduce their customers’ water bills. These nozzles are available in a wide variety of arcs and radii, as well as Toro (male) and female-threaded bodies, making them ideal for large scale installations and retrofits. In addition, the best-in-class Precision™ Series Spray nozzles are available with factory-installed Pressure Compensating Discs (PCD).