E-Flow 4 24v 

Deltec's flag ship series of true sine wave 24 volt pumps driven by brushless motors. The included controller can set power consumption and performance via a wattage display. The pump can either be installed inside or outside a sump. The new E-flow Pumps provide a high flow rate and pressure at low power consumption and are almost silent in operation.

E-Flow 4 - Silent running external and internal pump with a 4000 lt/hr duty.