Brand new in box This Marineland Maxi-Jet pump comes with two modes: a powerhead mode, and a circulation mode. Powerhead Flow Rate: 230 GPH Circulation Flow Rate: 1000 GPH Max Head Pressure: 4 Ft 10 Watts Inlet: fits 3/4" ID tube Outlet: fits 1/2 tube Pump Dimensions: 3.25" x 3.5" x 2"