2 PCS Circulation Pump Wave Maker 1600 GPH Aquarium Powerhead Suction Cup Mount Enjoy greater flow rate and extreme versatile positioning while minimizing bulky equipment. Fully submersible water pumps generate a wide and gentle water flow to breathe life to once, hard-to-access "dead spots" in your aquarium. Ideal for saltwater nano reef aquariums.//// Power: 12 Watts Dimension: 5 x 5 x 3 inch (without the extension) 110V-120V 60Hz Totally submersible and oil-free motor to avoid pollution to the living circumstance Easy to install Package Include (2) 1600 GPH Wave Maker (2) Suction Cup Fixed Mounting