Shurflo by Pentair PIRANHA™ Ballast 800 Pump - 12 VDC, 800 GPHPIRANHA Ballast 800 Pump 12 VDC, 800 GPH Everything you are looking for in a ballast pump. Our tough, high density nylon housing and heavy duty water cooled motor give the PIRANHA ballast pumps unparalleled reliability. Anti airlock feature allows the pump to clear trapped air. All ballast series pumps have a removable cartridge for easy cleaning and ease of replacement. Features: Flow Rate 800 GPH Replaceable Cartridge Tough Nylon Construction Anti