The EcoTech Marine Vectra M1 Centrifugal Pump is a high quality marine aquarium water pump. It has a sleek design, quiet motor, flows at up to 2,000 gph, is easy to set up, and uses 80 watts. The Vectra M1 can be installed and operated as a return pump or closed loop pump. They can be internal and external with the sealed motor and magnetic drive. There are a number of different modes that can be adjusted with the Vectra M1 pump.