The ECO-2245 is a 2166 GPH submersible water pump that is great for everything from fountains to hydroponic systems. The pump has an inside threaded fitting and the flow is non-adjustable. Powerful oil-free, rare earth rotor magnet. Ceramic shaft and bearing insures reliability. Trouble free one moving part. Strainer protects impeller from damage. Comes with a 120 volt cord. Include inlet and outlet fittings.