Although centrifugal pumps are widely used in aquariums, users are hardly aware of their efficiency. Current state of the art, however, shows us that the basic components can be real energy hogs: aquarium pumps, for example, work around the clock. Cheap or poorly designed synchronous motor pumps may waste a great portion of the consumed energy, while high-tech pumps and motors allow significant energy savings over extended periods. The Comline® energy saving pump was specially developed for internal filtering systems, with insignificant heat loss in the aquarium and offering very high reliability at low power consumption and maintenance requirements. Pump output can be controlled mechanically between 30 and 100%, the compact design enables very easy installation in Comline® filters or standard internal filter systems. Pump output: 250 – 850l/h (65 to 225 US gal./h), energy consumption: 2.5 – 4.5W pumping head: 0.7m voltage / frequency: 230V/50Hz (115V/60Hz)length of cable: 2m (0.08 in.), dimensions without outlet: 60 x 60 x 40mm (2.4 x 2.4 x 1.6 in.) outlet: ø13mm (.51 in.)