Rio Aqua Plus 400 Powerhead flow rate is 144 gph.Connections: 1/2" ID hose fits outlet6.5 Watts Dimensions: 2.5" X 1.7" X 2.3"Must be fully submersedCan be used with wet-dry filters, venturi protein skimmers, uv sterilizers, undergravel filtering systems, ponds and fountains in both fresh and salt water6 foot power cord Rio Aqua Plus pumps have an enhanced motor design Performance charts (new window)