1. Introduction
Thank you for choosing the FEDOUR 80GPH Aquarium Air Pump. This 3W silent and adjustable air pump is designed to provide powerful oxygenation for fish and turtle tanks up to 120 gallons (450 liters). Its advanced design ensures quiet operation and stable air volume delivery, contributing to a healthy aquatic environment.
2. Safety Information
- Always disconnect the power supply before performing any maintenance or installation.
- Ensure the air pump is placed above the water level of the aquarium to prevent water backflow. If placing below water level, a check valve MUST be installed to prevent water from siphoning into the pump during a power outage.
- Do not immerse the air pump in water. It is designed for external use only.
- Keep out of reach of children.
- Ensure the power cord is not damaged and is placed where it cannot be tripped over or damaged.
- This appliance is for indoor use only.
3. Package Contents
Please check the package contents to ensure all items are present:
- 1 x FEDOUR 80GPH Aquarium Air Pump (3W)
- 2 x Air Tube (4.9FT/1.5M)
- 2 x Air Stone
- 2 x Return Valve (Check Valve)
- 2 x Suction Cup
- 2 x Regulating Valve
- 1 x T Connector
- 1 x Air Filter Cotton (plus 1 spare)

4. Specifications
| Feature | Detail |
|---|---|
| Power | 3W |
| Max Air Flow | 80 GPH (2 * 2.5 L/min) |
| Air Pressure | 18 kPa |
| Outlets | 2 |
| Dimensions (L x W x H) | 4.3 x 3.1 x 2.3 inches (11 x 8 x 6 cm) |
| Power Cable Length | 4.9 FT (1.5 M) |
| Suitable Tank Size | Up to 120 Gallons / 450 Liters |
| Material | Plastic (Thickened ABS casing) |
| Noise Level | <40dB (Silent operation) |

5. Setup Instructions
Follow these steps to set up your FEDOUR Aquarium Air Pump:
5.1. Prepare Air Tubing and Check Valves
- Cut Air Tubing: Cut the provided air tubing to the desired lengths for your aquarium setup. Ensure sufficient length to reach the air pump from your air stones/filters.
- Connect Check Valves: Install a check valve (return valve) on each air tube. The check valve prevents water from flowing back into the air pump. Pay close attention to the installation direction of the check valves (usually indicated by an arrow on the valve, pointing towards the air stone/aquarium).
5.2. Connect Air Stones and Pump
- Attach Air Stones: Connect an air stone to the end of each air tube (after the check valve).
- Connect to Pump Outlets: Attach the other end of the air tubes (from the check valve side) to the two outlets on the FEDOUR air pump.

5.3. Single Outlet Setup (Optional)
If you only need one air outlet, you can use the provided T-connector to combine the two pump outlets into one:
- Connect T-Connector: Use short pieces of air tubing to connect both pump outlets to the two inputs of the T-connector.
- Single Air Tube: Connect a single air tube (with check valve and air stone) to the output of the T-connector.
5.4. Placement
- Place the air pump on a stable, dry surface.
- Ensure the air pump is positioned above the water level of the aquarium. If this is not possible, ensure check valves are correctly installed to prevent water backflow.
- The soft rubber feet on the pump help reduce vibration and noise.

6. Operating Instructions
- Power On: Plug the air pump into a suitable power outlet. The pump will start operating immediately.
- Adjust Air Volume: Use the smooth adjustment knob on the top of the pump to control the air volume. Rotate the knob clockwise to increase air flow (High) and counter-clockwise to decrease air flow (Low). This allows you to fine-tune the oxygenation level for your tank.

7. Maintenance
Regular maintenance ensures optimal performance and longevity of your air pump.
- Air Filter Cotton Replacement: The air pump includes an air filter cotton at the bottom to filter impurities. Replace the filter cotton periodically (e.g., every 2-3 months or when visibly dirty) to maintain air quality and prolong pump life. A spare filter cotton is included.
- Air Stone Cleaning: Over time, air stones can become clogged, reducing bubble output. Clean or replace air stones as needed to ensure consistent aeration.
- Tubing Inspection: Periodically check air tubing for kinks, blockages, or damage. Replace any damaged tubing.
- Pump Cleaning: Wipe the exterior of the pump with a dry cloth to remove dust. Do not use harsh chemicals or immerse the pump in water.

8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No air output or weak air flow |
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| Excessive noise/vibration |
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| Water backflow into pump |
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9. Warranty & Support
The FEDOUR 80GPH Aquarium Air Pump comes with a 12-month warranty from the date of purchase.
If you encounter any issues or have questions regarding your product, please contact our customer support team. Our after-sales team will reply within 24 hours.
For support, please visit: FEDOUR Brand Store on Amazon