Key Features 100 LPH (22 GPH) Quiet running air pumps Can be suspended or left standing in your aquarium Air Output can be adjusted by the front located dials Bubble patterns easily adjusted for different effects. Oase Oxy Max Air pump is a verastile pump for your aquarium. Able to add vital oxygen to your tank, the Oxy Max Air Pumps can be installed quickly and easily. A top located hook makes it easy to hang or alternatively it can be placed in its sturdy base to be installed free standing. Additional oxygen is added to the water by way of the airline and airstones provided and the output rate can be easily adjusted for the tanks needs. The bubbling pattern can be adjusted on the air diffuser to create different soothing effects. The Oxy Max air pumps are silent running and is ready for instant set up. Model : OxyMax 100 Max Flow Rate : 100 LPH (22 GPH) Hose Connection : 1 x 2 Metre length (6mm Dia) Power Consumption: 3.5 Watts Dimensions (LxWxH): 150 x 90 x 70mm