✔ DUAL PUMP OXYGENATES TWO FISH TANKS SIMULTANEOUSLY --- SunGrow Aquarium Air Pump is equipped with a dual-headed pump which is attached to two vents. With 2 air stones and 2 pipes that come included in this pack, you can supply oxygen to two aquarium tanks simultaneously. The fish in the tank gets to breathe fresh, oxygenated air. ✔ HIGH-PERFORMANCE AIR PUMP ENSURES A HEALTHY AQUARIUM --- The SunGrow Air Pump set absorbs the outside air and sends it inside the tank via an outlet. Due to this, the aquarium gets oxygenated water which keeps the marine life healthy. It is perfect for aquaculture oxygenation, high-grade aquarium, and spout decoration. It helps to make the environment healthy for your fish ✔ LONG LIFE CONSUMES LESS POWER --- With help of this 4*2*2.5“ (10*5*6 cm) air pump, you can use the two air stones separately in two different tanks at the same time, yet you will receive reduced electricity bill. The outlet hole is big enough to allow steady air seep in. ✔ AESTHETICALLY APPEALING AND PRACTICAL DESIGN --- When you add tubing and air stones to the dual pump set, they carry the oxygen and later that is released into the water in the form of bubbles. Thus the unwanted carbon dioxide is removed from the aquarium without any inconvenience.