Hydrofarm Active Aqua Commercial Air Pump, 8 Outlets, 60W, 70 L/min Ideal for running several Waterfarms or multiple air stones at once Electrical magnetic air compressor in a high quality aluminum alloy case Wear and tear-resistant material for cylinder and piston High pressure and high output. Comes with multi-outlet divider that can be individually opened or shut 1100-gph, maximum amperage is 0.5 and maximum decibels is 60 High pressure and high output; comes with multi-outlet divider Perfect to run several waterfarms or multiple air stones at once Super silent with multi-level muffler