Active Aqua Submersible Water Pump, 550 GPHDescription Optimal Submersible Pump: Active Aqua offers a robust collection of pumps designed for hydroponic systems. The submersible line stands out, designed to function optimally below the waterline. Each pump boasts powerful mag drive construction and includes removable foam filters, impellers, and rubber mounting feet to reduce vibration. To suit the user's needs, pump flow is adjustable. Every pump comes with a 6 foot heavy duty power cord.