Sunsun JVP-202B 3170 gph Dual Aquarium Wavemaker Powerhead with Magnet Clamp Base Totally submersible and oil-free motor to avoid pollution to the living circumstance 3170gph flux and wide-spread range which is ideal for marine aquarium 360 degree rotation to allow full flow directions Magnet clamp base to lock and secure the wavemaker in place Power: 110V / 60Hz