SPOT WATERING PRECISION. 2 Gallon Per Hour Netafim Woodpecker Junior drip irrigation emitters ensure every plant on your drip irrigation system receives the same amount of water and fertilizer regardless of location, for uniform, high-quality growth on any topography. Ideal for greenhouse, nursery, hydroponic, farm and other commercial irrigation systems or residential home gardens and landscape applications. INDUSTRY'S #1 DRIP EMITTER. Designed with the highest level of technology, these compact, self-cleaning 2 gph emitters have both internal check valves and anti-drainback valves and feature the widest flow path for accurate, dependable water delivery that's made them the industry standard for years. PRESSURE COMPENSATING. The patented pressure compensating dripper continuously adjusts to varying water pressure, ensuring a constant flow rate under a wide pressure range from 10 to 45 PSI. No more under or over watering at the beginning and ends of the drip system line or in low areas of the system.