Performance: This 12V deep well pump is a single eccentric screw pump with an elastic stator covering the screw. It achieves a maximum flow rate of 1.2 m3/h and a maximum lift of 30 meters, making water pumping and transfer efficient. It comes with a 23 ft (approximately 7 m) electric cord. Stainless Steel Submersible Design: The submersible well pump features a stainless steel body, copper motor windings, a rubberinsulated wire with good well insulation performance, a stainless steel spring, and precision bearings, ensuring longevity and a long service life. It is designed to resist rust and corrosion even when used underwater for extended periods. 12V Power Supply Compatibility: Only a 12V battery or battery pack (not included), or a 300W solar panel, is required to drive this deep well pump. Note: when connecting a solar panel directly to the pump, it is recommended to add an MPPT controller for better performance. Suitable for solving water supply problems in industry, farmland, or home. Easy Installation and Use: The pump features a 3/4 inch NPT outlet and a 1 inch OD connector, allowing connection to either a 3/4 inch NPT threaded pipe or a 1 inch ID hose. It includes two ropethrough holes for easy lowering into or retrieving from the well. A 7 m long copper power cord provides convenient reach for deeper wells.