The Reef Octopus VarioS controllable DC pinwheel skimmer pumps provide advanced control and enhanced performance for hobbyists. Unlike traditional AC pumps, these direct current pumps offer the ability to adjust motor speed, resulting in precise airflow and water flow rates. The VarioS controller offers even more control, featuring a float switch connection for added security, pause/feed modes for maintenance and feeding, and a 0-10v input for integration with third-party controllers. With a waterproof 3-conductor union for easy detachment, a slow startup feature, and a rotatable volute for versatile output orientation, the VarioS 6S pump is a top choice for skimmer pumps and can even be retrofitted to fit certain OTP-GT pump models.