Feature: 1. LARGE AIR VOLUME: Aquarium fish tank aerator air volume is super large, even can drive 4 nano sand plate. AC power supply, automatic start in case of power failure. 2. PAINT SURFACE: Aquarium air pump surface high gloss paint surface, gorgeous colors, using the newer liner technology, ultra quiet operation. 3. USE SCENARIO: Fish tank air pump has a wide range of uses, suitable for fishing, fish ponds, seafood pools, use the environment more freely, easy to use. 4. ADJUSTABLE: Fish tank oxygen pump multi speed potential knob adjustment, can be adjusted freely according to the size of the fish tank, adjust the size of the air volume at any time. 5. EASY TO INSTALL: Aquarium aerator comes with two nano air plates and one air hose, can be directly installed and connected to use, super large air plate, more bubbles. Specification: Item Type: Aquarium Air Pump Material: ABS Use: Fish Tank Large Volume Oxygen Pump Maximum Air Volume: >10L/MIN x 2 Maximum Air Pressure: 30Kpa Rated Power: 5.5W . Package List: 1 x Aquarium Air Pump1 x Instruction Manual2 x Red Check Valve2 x Air Plate2 x Suction Cup 2 x Adjustment Valve 2 x Transparent Check Valve1 x Air Hose