HITOP 2 Outlets Aquarium Air Pump Ultra Quiet
Size:13*5.7*7cm/5.1*2.2*2.8in
Power: 3W, 120V/60Hz Flow: 2 - 5L/min Pressure: 18Kpa
Suitable for fish tank size:20-100gallon
Uses: increase oxygen for fish tanks, hydroponic plant growth
Note: indoor use only.
Try to put it higher than the fish tank. If it is placed lower than the fish tank, you can use the return valve.