The Active Aqua AAPA45L commercial air pump is essential for healthy plant growth in your hydroponic system or waterfarm. It generates constant oxygen in the water which helps keep plant roots alive. It features six high quality copper outlets on an individually controllable air divider. Ideal for running multiple air stones at one time. The air pump is built to last with its aluminum alloy casing and tear-resistant material for the cylinder and piston. Operating at 20 watts and 120 volts, it can pump oxygen through the water at a rate of 45 liters per minute (roughly 700 gallons per hour). Handle several hydroponics systems at once with this Active Aqua AAPA45L commercial air pump.