FEDOUR 4*4L/min 4Outlets Aquarium Air Pump for up to1100L Tank [More accuracy for adjustment] The whisper aerator has high accuracy electric adjustment, easier to get suitable air volume, more reliable and less vibration, much higher reliability. [Smaller consumption, larger air capacity] High frequency all-copper pneumatic motor, with high efficiency air stone, produce more bubbles, provide enough oxygen for your fish. [Durable] There are 4 metal outlets on the fish tank bubbler, high quality, durable and corrosion-resistantcan also reduce noise. Specifications: Voltage: 220-240V/50Hz Size: 19.5*15.5*5.5cm Max Air Flow: 4*4L/Min Air Pressure: 20Kpa Application: Up to 1100L tank Read more No return valve is needed: FEDOUR 4-outlet air pumps should be installed higher than the water level to prevent the water from flowing back into the air pump. Read more Return valve is needed: If you install the aquarium air pump lower than the water level, return valves should be needed, otherwise the water in the air hose will flow back into the air pump, causing damage to the air pump. Read more You will get all accessories needed for free: Air Hose 5FT(1.5M)*4Air Stone*4Suction Cup*4T connector*2 Filter Cotton*2Return Valve*4 Regulating Valve*4 Installation of Return Valve The return valve should be installed correctly, the larger end should be installed close to the air pump, and the smaller end should be installed close to the air stone.Tip: Before using the air return valve, pass a thin object( Such as the needle) through it to avoid internal stickiness, which will make the air flow more smooth. Replaceable Filter Cotton Filter cotton can filter the impurities in the air.Extra air cotton is provided for replacement, extending the service life of the air pump. Suction Cup Additional suction cups have been provided.The suction cup can fix the air hose on the fish tank so that the air hose will not swing in the water during work, and it looks more beautiful. Accessories About Return Valve About Filter Cotton About Suction Cup Aquarium Bubbles Read more Wide Application Fish Tanks Hydroponics Small Ponds Read more

Product Features

• [Powerful Pump] 4 outlets fish tank air pump, super large air volume for up to 1100L tank, the max pressure is 20Kpa, the max air volume is 4*4L/min, can be easily connected to more air stones, can be used for larger fish tanks, aquariums, hydroponics and small ponds.
• [Adjustable Air Flow] Accurate electronic adjustment air volume, just adjust the knob on the aquarium air pump to get suitable air volume, will not cause vibration, more stable and safer.
• [Low Noise] The upper and lower shells are tightly sealed, and the thickened side shells wrap the gap, effectively reducing noise. The soft silicone foot design also effectively reduces vibration of the aquarium bubbler.
• [Longer Service Life] The air filter cotton of this silent oxygen pump can filter impurities in the air and make the air pump more stable. Extra air cotton is provided for replacement, extending the service life of the air pump.
• [Package Includes] Comes with all needed accessories, includes: Air hose x 4( 4.9 FT); Air stone x 4; Return valve x 4; Suction cup x 4; Regulating valve x 4; Air filtering cotton x 2, T connector x 2. Original quality, professional manufacturer.