Submersible pumps push fluid to the surface as opposed to jetpumps having to pull fluids. submersibles are more efficient than jet pumps because they don't really have to spend a lot of energy moving water into the pump; water pressure pushes the waterinto a submersible pump, thus “saving” a lot of the pump'senergy. submersible sewage water pump voltage 240v input power: 750w(1.0hp) max. head: 8m max. flow: 13000l/h max. depth: 7m pipe diameter: 1" with 9m cables packed by carton box product code: spd7501