Recommended, depending on tank load, from 60 to 250 liters (15 to 65 USgal.) of sea water.
Immersion depth: approx. 225 to 245 mm (8.9" to 9.7")
Skimmer cup volume: 0.2 liters (.05 Usgal.)
Air capacity: approx. 150 l/h (40 USgal./h) 
Energy consumption: 4 W, 230V/50Hz (115V/60Hz) 
Dimensions (L x W x H): 110 x 90 x 305 mm (4.3" x 3.5" x 12")
Magnet Holder up to a glass thickness of 12 mm (½").