DUAL HEAD Circulation Pump Wave Maker 3200GPH for Aquarium Salt/Fresh Fish Reef by Aquaneat Totally submersible and oil-free motor to avoid pollution to the living circumstance Dual Wave Pump in one design, provides the 2 direction of the flow Magnetic drive technology High waterproof performance ensures safety and reliability. Total flow rate: 3200 GPH Fit all aquarium fish tanks up to 200 Gal capacity most effective. Wide-spread range just like a wishy-washy ocean wave 360 degree rotation to adjust flow in any direction