1、[Super Silent] Fish tank air pump with newer liner technology to ensure ultra silent operation. The surface is high gloss spray paint surface with brilliant colors. 2、[Large Air Volume] This aquarium oxygen bubbler pump has super large air volume and more powerful, it can even drive 4 nano sand tables. 3、[Multi Application] Aquarium oxygen pump with AC power supply, automatic start in case of power failure, suitable for fishing, fish pond, seafood pools, etc. 4、[Easy To Use] Fish tank oxygen pump with four nano air plates, two tees and an air pipe, can be directly installed and connected for use, super large air plates, more bubbles. 5、[Adjustable] Fish tank air pump with multi gears potential knob adjustment, adjust the size of the air volume at any time, can be freely adjusted according to the size of the fish tank. 1 x Aquarium Oxygen Pump1 x Instruction Manual2 x Red Check Valve4 x Air Plate4 x Suction Cup4 x Control Valve4 x Transparent Check Valve2 x Tee1 x Air Pipe Item Type: Aquarium Oxygen PumpMaterial: ABSSize: Approx. 12 x 22 x 13cm / 4.7 x 8.7 x 5.1inUse: Fish Tank Large Volume Oxygen Pump, Sand TablesMaximum Air Volume: >10L/MIN x 2Maximum Air Pressure: 30KpaRated Power: 5.5W