CNZ&reg; Commercial Air Pump - 8 Outlets - 60 Liters per Minute - 55 Watts Perfect to run several Water farms or multiple air stones at once Ideal for fish pond and HYDROPONIC farm Electrical magnetic air compressor in a high quality aluminum alloy case, wear and tear resistant material for cylinder and piston 55 watts, 60L/min, 110V/60Hz Dimension: 7"x4"x4.5"