EG Danner® Supreme Hydroponics™ Submersible Water Pump Max Flow 400gph, Max Pumping Height 8.5ft, Inlet Size 1/2in MPT, Outlet Includes 1/2in, 5/8in & 3/4in daptors Energy efficient, oil-free pump designed for submersible ior inline use and suitable for ebb and flow applications. Includes adjustable flow control if used submersed. 6ft power cord.