Rain Bird 1400 Series pressure compensating full circle bubblers provide a controlled, gentle umbrella of water for irrigating trees, flowers and shrub areas where pressure compensation is required. Mount these bubblers on 1/2" male risers to effectively water areas from 1' to 3'. Full Circle Bubbler Features Include: Reduces runoff. Flow will not fluctuate at pressures between 20 and 90 psi. Maintains even flow. Flow is not adjustable for increased vandal resistance. No adjustment required. Corrosion-proof plastic and rubber construction for long life. Shipped with special SR-050 1/2 Inch bubbler filter screen for easy installation and resistance to debris. Trickle pattern for the 1402 bubbler nozzle. Specifications: Flow: 0.25 to 2.00 GPM (0,06 to 0,46 m3/h; 0,02 to 0,12 l/s) Spacing: 1 to 3 feet (0,3 to 0,9 m) Pressure: 20 to 90 psi (1,4 to 6,2 bar) 1/2 Inch female threaded inlet Height: 1 Inch (2,5 cm) Top diameter: 1 Inch (2,5 cm) Specifications: Inlet Size: 1/2" Inlet Thread: Female Threaded Flow Control: 0.5 GPM Pressure Rating/Range: 20 - 90