For aquariums from 40 to 200 liters (10 to 55 USgal.).Flow rate: approx. 1800 l/h (475 USgal./h)Energy consumption: 3.5 WVoltage / frequency: 230V/50Hz (115V/60Hz)Cable length: 2 m (78.7 in.)Dimensions: diam. 70 mm (2.7 in.)Outlet: o40/15 mm (1.5/.6 in.)Magnet Holder with Silence clamp up to a glass thickness of 12 mm (1/2").