5 bullet pointsï¬Durable Copper Electric Motor: Our air pump is driven by an electric motor with stable performance, making sufficient oxygen supply along with even bubbles. It features low power consumption and high energy saving. It can provide sufficient oxygen to the fish, which helps to maintain the health of fish. ï¬Adjustable Flow Rate: With an flow rate adjustment knob, you can adjust the flow rate according to the size of your water tank by rotating the knob. The maximum flow rate is 2*5 L/min.ï¬Shockproof & Low Noise: We add 4 rubber feet to the bottom of the air pump to keep air pump in a suitable place and decrease noise. It's super quiet. The maximum noise is lower than 40dB while the pump is being used. ï¬Dual Outlet & Air Stone: It has two outlets. You can insert them into one or two fish tanks or aquariums. We use innocuous mineral air stones (Φ1.5") to make more even and tiny bubbles.ï¬Complete Accessories & Easy to Install: Our air pump is widely used in fish tanks, aquariums, feeding ponds and other environments. Please note that the air pump can not be put in fish tanks. It should be placed above the water level. We propose you install a check valve no matter where the air pump is placed to prevent water from flowing back to the air pump and damaging the motor.Description: Want to add more fresh air to your fish in water tanks or feeding pool? Aquarium Air Pump is what you are looking for. The air pump is driven by copper electric motor to ensure stable performance. We use innocuous mineral air stones to make more even and tiny bubbles, so your fish in water can get more fresh air easier. You can also adjust the flow rate according to the water environment by rotating the knob on the pump. Four rubber feet are also added to the pump bottom to keep the pump in place make and lower the noise. You can use the air pump for aquariums, fish tanks, seafood ponds. Feature:A complete air pump set Connect air stone to create more oxygen in waterNon-slip rubber feet helps to cushion the vibration of the motor & decrease noiseEasy to install with user manualWidely used for fish tanks, aquariums, seafood ponds & moreSpecification:Color: BlackPower: 5WOutput: 2*5000ml/minFlow Rate: adjustable, 5.0 L/min x 2 Voltage: 110~120V 50-60HzNoise: <40dBMax.depth of water: â¤120cm/4ftPressure: 0.03 KPaDimension: length: 19.5cm/7.5", width: 9cm/3.5", height: 11cm/4" Package including:1 x Air Pump2 x 2m / 6.5ft Silicone Tube2 x Φ40mm/1.5" Air Stone2 x Check Valve1 x User Manual