16L/ Min 10W Aquarium Air Pump Quiet Oxygen Air Aerator Pump 600 Gallon

hygger 10W aquarum air pump is powerful for large fish tank 30 to 600 gallon, it can pump more air into the water to keep a health environment for your aquariums.
The fish tank air pump can work with kinds of air stones, sponge filters, air decor bubblers. It's not an adjustable air aquarium pump, you can use control valves to control
the air flow rate as you need.

When shake the pump, something wobbles inside. Is it normal?
It is normal.The motor is fixed by rubber columns to bottom case, when shake the pump, the motor cover may slightly knock to the top case.

Directions for use:
1. The air pump is not waterproof or submersible.
2. Put a towel or rubber pad under the pump can reduce the sound more less.
3. Set the air pump flat on a surface.
4. Please soak the air stones for 10 mins before use to get perfect bubbles with this pump.
5. It's better to use check valve to prevent back flow of water into the pump in case of sudden power failure.
6. We suggest to put the pump above the fish tank, if put it below, check valve is the must have.

Specifications:
Power: 10W
Voltage: 100-120V/60Hz
Pressure: 0.03MPa
Outlet size: 4mm
Output: 250GPH(16L/min)
Noise: <35dB
Dimension: 5.9x5.1x4inch
Cord length: 4.9ft
Limit depth of water: 2m

Package Includes:
1 x Aquarium Air pump
1 x User Manualv