Sunsun 1600 GPH Circulation Pump Wave Maker Aquarium Reef Powerhead Magnetic Mount (Only Ship to USA) Totally submersible and oil-free motor to avoid pollution to the living circumstance. Magnetic drive technology. High waterproof performance ensures safety and reliability.. Fit all aquarium fish tanks up to 150 Gallons.. 360 degree rotation to adjust flow in any direction. Suction cups with articulating ball joints for versatile directions. Easy installations (suck the cups to inner wall & plug in the power)