The three silicone suction cups will attach to any smooth flat surface.
This brilliant little device is the perfect DC companion to the AquaBackup BatteryOn with Oxygen Infuser. Air is infused with the water at the pump impeller. The micro-fine bubbles produced, are sent out of the pump and into the tank containing life giving oxygen to your fish. The millions of micro-fine bubbles are so small that they remain suspended in the water longer thus providing more oxygen for your fish.