Star Water Systems 1/2 HP 678 gph Cast Iron Convertible Jet Well Pump1 2 HP Deep Well Cast Iron Convertible Jet Pump with Switch. Cast iron convertible Jet pumps are located above ground, easy to install, and maintain for both shallow and deep well applications. Up to 1020 gallons per hour. Shallow well lifts of 25ft and deep well lifts to 110 ft. Single and double pipe applications. See Ejector Specifications and Well Adapter Selection Chart for correct jet assembly (sold separately). These units feature dual voltage