Product Overview
The AC Infinity Air Pump is a corded electric plastic automatic air pump designed to enrich oxygen levels in water tanks for aquariums, ponds, and hydroponics systems. This compact and efficient unit provides consistent aeration to support healthy aquatic life and plant growth.
Key Features
- An air pumping system designed for hydroponics settings to improve growth by enrichening oxygen levels.
- Innovative electromagnetic motor maximizes air pressure and volume while reducing energy consumption.
- Adjustable turn dial delivers full control of airflow levels for a wide array of aeration applications.
- Heavy-duty shell and internal muffler dampen noise to allow for continuous ultra-quiet operation.
- Air tubing with check valve supplies secure one-way oxygenation and flexible installation options.

A compact, dark grey air pump unit with an adjustable dial and power button on the front panel.
Setup Guide
Package Contents
- Air Pump Unit (Model AC-AUS21)
- Air Tubing
- Check Valve
- Air Stone
Installation Steps
- Placement: Place the air pump unit on a stable, dry surface above the water level of your aquarium, pond, or hydroponics system. This prevents water from siphoning back into the pump.
- Connect Tubing and Air Stone: Attach one end of the air tubing to the outlet nozzle of the air pump. Connect the other end of the tubing to the air stone.
- Install Check Valve: Cut the air tubing a few inches from the air pump and insert the check valve, ensuring the arrow on the valve points towards the air stone (away from the pump). This prevents water backflow.
- Submerge Air Stone: Place the air stone at the desired location within your water tank. Ensure it is fully submerged.
- Power Connection: Plug the air pump's power cord into a standard electrical outlet.

An illustration demonstrating the air pump connected via tubing to an air stone submerged in a water tank, releasing oxygen bubbles for hydroponics or aquatic systems.

The air pump unit positioned on a shelf next to a small hydroponics setup, illustrating its practical application in a home environment.
Operation
Adjusting Airflow
The air pump features an adjustable turn dial on its front panel, allowing you to precisely control the air pressure and volume. Rotate the dial to increase or decrease the airflow according to your specific aeration needs. The dial provides full control from 0 to 100, enabling optimal oxygen levels for various applications.
Quiet Operation
This air pump is designed with a heavy-duty shell and an internal muffler to significantly dampen noise. This allows for continuous, ultra-quiet operation, making it suitable for indoor environments without causing disturbance.

A close-up of the air pump's front panel, featuring the rotary dial for adjusting airflow levels from low (L) to high (H).

A cutaway view of the air pump highlighting its electromagnetic motor, designed for efficient air circulation with low power consumption and reduced noise.
Maintenance
Cleaning
To ensure optimal performance and longevity, periodically clean the air pump and its components. Disconnect the power before cleaning. Wipe the exterior of the pump with a soft, damp cloth. Clean the air stone regularly to prevent clogging, which can reduce airflow. Rinse tubing if necessary to remove any buildup.
General Care
- Ensure the air pump is always placed above the water level to prevent water from entering the unit.
- Regularly check the air tubing for kinks or blockages that could restrict airflow.
- Avoid placing the pump in direct sunlight or extreme temperatures.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| No air output or weak airflow |
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| Excessive noise from pump |
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| Water backflow into tubing/pump |
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Technical Specifications
| Specification | Value |
|---|---|
| Model Name | AC-AUS21 |
| Brand | AC Infinity |
| Material | Plastic |
| Item Weight | 0.52 Kilograms |
| Power Source | Corded Electric |
| Air Flow Capacity | 1.5 LPM (24 GPH) |
| Operation Mode | Automatic |
| Dimensions (L x W x H) | 4.72 L Inch x 2.75 W Inch x 2.51 H Inch |
| UPC | 819137023697 |

An infographic displaying the physical dimensions of the air pump unit, tubing length, and air stone, along with key electrical specifications like voltage, power, and output.
Warranty Information
This AC Infinity product comes with a 2-year warranty. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, refer to the official AC Infinity website or contact customer support.
Customer Support
For further assistance, technical support, or to explore other AC Infinity products, please visit the official AC Infinity Store:






