<b>Full of oxygen and keep fish happy and thrive in the aquarium tank, with the help of HIRALIY well-constructed fish tank air pump</b> <br> <br> <b>Easy to install</b> <br>All 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 stop back siphoning; <br> <br> <b>Double Outlets Air Pump</b> <br>Equipped with dual outlets' fish tank pump (3 watt power), 2 pieces 6.6 ft silicone tubing provided for easy to insert multiple fish tanks or aquariums through the double outlets; <br> <br> <b>Adjustable Flow Rate</b> <br>You just need to turn the air pump knob to adjust the flow rate as your tank size. The maximum volume of tank is about 80 gallons; <br> <br> <b>Low Noise & Shockproof</b> <br>4 solid rubber feets on the bottom of fish tank pump ensures offer low noise and keep it in the place. For better noise reduction, It's recommended to put a towel or blanket under the fish air pump <br> <br> <b>Package Contents</b> <br>4 x air stones; <br> 2 x 6.6 ft (2m) silicone tubing; <br>2 x return valves; <br> 2 x suction cups; <br> 1 x HIRALIY aquarium air pump; <br>1 x blue card; <br>1 x user manual;