The aquarium air pump is well-constructed and quietly energizes air into the aquarium's electrical equipment with low power consumption, which able to use in drive aerodynamic equipment such as air stones, foam trim and sponge filters. It will make your aquarium full of oxygen and keep fish healthy and thrive.<br><br> <b>Easy to install</b><br> All of accessories can be assembled with a few minutes, please set the pump above the aquarium or fish tank. You can also add a check valve between the air pump and the air stone to prevent back siphoning.<br> <b>Adjustable, double outlets</b><br> You just need to turn the air pump knob to adjust the flow rate as your tank size.<br> <b>Noise reduction</b><br> The base added rubber feet, which able to reduce the noise. It will not fall off after using like the suction-type air pump for a while, nor vibration when working like a hook-type air pump.<br><br> <b>Specification:</b><br> ●Voltage: 110 -120 V, 50 - 60 Hz<br> ●Exhaust volume: adjustable, maximum reach 5L / min (2x2.5L / min)<br> ●Pressure: 0.02 MPa<br> ●Power: 3.0 watts<br> ●Noise: <40 dB<br> ●Size: 4.3x2.4x2 inch<br> ●Applicable water tank capacity: 1-80 gallons<br> ●Fit for freshwater and marine aquarium fish tanks<br><br> <b>Notes:</b><br> 1. Do not put it in the aquarium, keep it dry.<br> 2. Equipped with a 6.6ft high quality silicone tube that you can cut it as required.<br> 3. In order to extend the service life of the air pump, we recommend you clean the silicone tube and the air stones regularly.<br> 4. If you have any questions about the product, please do not hesitate to contact us and you will get a satisfactory response soon.<br><br> <b>Package Includes:</b><br> 1 x aquarium air pump<br> 1 x 6.6 ft silicone tube<br> 1 x user manual<br> 2 x air stone<br> 2 x check valve