HITOP 2 Outlets Aquarium Oxygen Air Pump Features: 2 outlets fish tank air pump, fit for 10-100 gallons, and with adjustable knob, you can adjust the output according to the size of your fish tank. Rich air pump accessories to meet your needs, no need to purchase separately. The rubber feet of this air pump are designed to minimize noise.

(This air pump will inevitably have some small sounds at maximum power, you can put it on the blanket will be much better) Air filter cotton is used to block some impurities in the air. After a long time of use, It should be cleaned or replaced regularly. The unique air filter cotton design of this aquarium air pump makes cleaning and replacement easier.

Parameter: Power: 3W, 120 V/60 Hz Flow: 2-4 L/min Pressure: 22 Kpa Item Dimension: 5.1 x 2.2 x 2.8 in Suitable for Fish Tank: 10 - 100 gallon Package Including: 2 x Airline(3~3.2 ft) 2 x Return Valve 2 x Air Stone(0.98 in) 1 x Connector 1 x Air filter cotton Installation Notes: Connect the airline to the air pump and the other end to the air stone according to the Instructions, then turn on the power.

If the air pump is placed below the water level of the aquarium, you can connect a return valve to the air line of the air pump, paying attention to the direction of the return valve. You can connect two air stones for two fish tanks at the same time, or you can use a T-connector to connect only one big air stone.