HITOP Aquarium Air Pump with Accessories, Adjustable Oxygen Pump, Silent Aerator for Fish Tank 30L to 400 L

[Compact but powerful] 12*6*8cm, compact but the internal double air chamber structure not only makes the air flow output more stable, but also enables this fish tank air pump to pump out air more powerfully. [Large air volume and wider adjustment range] In addition to the inner adjustment knob, this 3W aquarium air pump is equipped with spare regulating valves, which can adjust the air volume more accurately, so the air volume range can reach 1L- 5L/Min, suitable for 30- 400 liters sea water and fresh water fish tanks. [Ultra-Quiet] This aquarium air pump adopts the latest technology to make it ultra-quiet in working, just sound like rustling leaves; Moreover, we use an extra thickened shell to wrap the joints of the body of the air pump, to eliminate the noise further. [Dual-outlets and more usage] This air pump can aerate two air stones at the same time, it also can be converted into a single outlet through the T-connector. Meet your diverse usage needs. [Easy to install and use] Only 3W, but with a Max flow of 5L/Min(300L/H), 18Kpa air pressure; Comes with all the accessories you may need (1.5M air pump Tube*2, Return Valve*2, Air Stone*2, Spare Regulating Valves *2, Suction Cup *2, Air filter cotton*1, T-Connector*1.