Improve aquarium aeration and water movement while minimizing energy use and maintenance. Hydor Bubble Maker boasts easier setup and reliable performance while operating on just four watts! Turbo-powered aquarium aeration device features an enhanced design that protects the rotor from substrate and debris that can obstruct or impair performance. Special rotor and channeled casing generate a flurry of air bubbles that improve aquarium water quality and aesthetics. Enjoy a dramatic column of sparkling air bubbles while providing oxygen-rich water movement essential for a healthy aquarium environment. The Hydor Bubble Maker measures approximately 1-3/4" x 2-1/4" x 2-1/2" high. Base measures 3-1/4" x 4" and features an airline tubing router. 70 gph flowrate. Features a mounting pin for convenient installation of the optional Hydor LED Light for brilliant light effects. For use at a suggested depth no greater than 18" deep.