This Rugged Rotor Can Stand Up to Any Commercial JobThe I-25 gets the job done with power, efficiency, and commercial-grade reliability. With a robust watering radius of 4’ to 71’, this rotor can be used in a variety of applications and environments. Its compact, highly durable design comes with an optional stainless steel riser for tough-as-nails strength. With a 5-year warranty, the I-25 also has options for reclaimed water ID and high-speed. A standard check valve is built in, and a wide selection of high performance nozzles are available. Efficient, tough, and built-to-last, Hunter’s I-25 rotors work hard day in and day out so you don't have to. Specifications: Inlet Size: 1 Inlet Thread: Female NPT Arc Adjustment Range: 5 - 36 Flow Control: 3.8 - 31.5 GPM Pressure Rating/Range: 4 - 1 Optimum Pressure: 5 - 7 Precipitation Rate: .23 - .57