The Rain Bird 8 - 15 ft. Shrub Nozzle - Half Circle Pattern Mounts above ground on a riser tall enough to clear shrubs and tall plantings. Adjustment screw regulates distance of throw for spacing from 8 to 15 feet apart. Matched Flow Rate nozzle assures uniform watering when different patterns are mixed on the same zone. Distributes water evenly and is compatible with other Rain Bird match flow rate nozzles.