220 GPH to 2500 GPH.For Saltwater & Freshwater Aquariums.For Submersed or External Use.The Sicce Multi Pumps are for both submerged and external operation (all other Multi models can be used externally). They guarantee low working temperature, excellent performance, and low consumption. They find a wide field of use in the aquarium sector, hydroponics sector, ornamental fountains, and hydraulic systems thanks to a robust and compact design.