Rain Bird 1/2" (0.7" OD) Sub-Surface Drip Emitter Tubing 50 foot coil Designed for use below or above ground Direct sub-surface watering of the root zone produces faster, healthier plant and vegetable growth Pressure compensating emitters provide end-to-end watering uniformity Copper shield technology naturally protects against root intrusion Emitters are spaced 18" apart with each emitter flow rate at 0.9 GPH (gallons per hour)
