ADJUSTABLE WATER FLOW: This non-pressure compensating drip emitter releases water in an 8-stream spray, full-circle pattern; the amount of water flow is adjusted by turning the dial on the bubbler, from 0-11.7 GPH CONNECTS TO DRIP IRRIGATION SYSTEM: Built-in 10-32 threaded inlet connects emitter directly to a rigid riser USE TO WATER A VARIETY OF AREAS: Great for watering groundcover, decorative grasses, flower and vegetable gardens, as well as trees and shrubs EASY TO INSTALL: Screw the built-in 10-32 threaded inlet onto a rigid riser SPECIFICATIONS: 8-stream spray emitter reaches up to 16 in. radius at 15-50 PSI; Discharges water up to 11.7 GPH at 15-50 PSI