Features: With a control knob, you can adjust the flow as needed. It will automatically shut down when it gets stuck or runs dry to protect the pump with IC chip control technology. With electronic frequency conversion technology, energy saving up to 70% and wear-resistant ceramic shaft ensuring super quiet operation and long life service. Can be used submerged or inline (external) (Note: run in the water for a while before inline use to make sure water flow to go through and no air in the pump/hose) Perfect for both freshwater and saltwater Specifications: Flow Rate H. Max Dimension Inlet/Outlet I.D.( hose w/ barbed fitting) Length of Power Cord Wattage 1200GPH 9.5ft 7.5" x 5" x 3.5" 3/4”, 1”, 1-1/4” 9.5ft 30 1400GPH 11.5ft 7.5" x 5" x 3.5" 3/4”, 1”, 1-1/4” 9.5ft 40 1900GPH 14ft 7.5" x 5" x 3.5" 3/4”, 1”, 1-1/4” 16.5ft 55 2100GPH 16ft 8.5" x 5" x 3.5" 3/4”, 1”, 1-1/4”, 1-1/2” 16.5ft 75 2700GPH 17ft 8.5" x 5" x 3.5" 3/4”, 1”, 1-1/4”, 1-1/2” 16.5ft 80 3200GPH 18ft 8.5" x 5" x 3.5" 3/4”, 1”, 1-1/4”, 1-1/2” 16.5ft 85 Voltage: 110V-120V/60Hz Includes: 1x Pond Pump 1x Outlet Adapter