For aquariums from 40 to 200 liters (10 to 55 USgal.). Flow rate: approx. 2800 l/h (740 USgal./h) Energy consumption: 5 W Voltage / 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").