Pondmaster, Pond-Mag 2, 250 GPH, Magnetic Drive Utility Pump. Durable, Engineered To Last. Powerful Ceramic Magnetic Impeller Is The Only Moving Part Which Makes These Pumps Extremely Energy Efficient. Rigid Pre-Filter Included With Pump. Ceramic Shaft For More Durability. 18' Grounded Power Cord, Operates Inline Or Submersible, Horizontal Or Vertical Positioning.