Red Sea ReefRun Dual Controller (for DC Skimmers & pumps)The ReefRun Dual Controller offers great value as it can run both the REEFER DC Skimmer & ReefRun DC Pump (or two ReefRun DC Pumps) at the same time! The controller is sold separately, enabling the hobbyists to purchase one controller for 2 devices and save significantly, while enabling you to reduce your inventory requirements. See our Return & Refund Policy here