Rain Bird Landscape Dripline System MSH-2PK 180 deg Half-Circle Threaded Microspray - 2 Pack. True micro-spray with half-circle fan spray pattern, ideal for mass plantings, ground cover, annual flower beds and containers. Adjust flow/radius by turning outer cap. Easily threads onto Rain Bird riser stake RISER-1PK. Spray distance from 0 feet to 10.6 feet at 30 psi. Adjustable from 0 to 31.0 GPH. Spray head can be shut off with a simple twist of the outer cap. Convenient re-sealable plastic bag contains 2 microsprays.