After testing various standard air pumps like Rena, Elite, and Infinity, the Resun AC-9908 stands out as a true powerhouse. This unit is designed for serious hobbyists who require a high-volume, centralized air source for multiple tanks.
Performance and Specifications
The Resun AC-9908 yields 20 liters of air per minute (1200 l/h) and features 8 dedicated outlets. A large adjustment screw on the top allows for fine-tuning the output to suit different filter types. Power consumption is approximately 24W, comparable to the energy used by two large powerheads. During practical testing, it efficiently powered a rack containing everything from 12-liter breeding tanks to 325-liter display tanks, still leaving room for further expansion.
Noise Considerations
The primary drawback of such a powerful diaphragm pump is its noise level. It produces a hum that can be disruptive in quiet environments like an office or bedroom. To solve this, I installed the unit in the attic, isolating the sound while piping the air to the aquarium room below.
Final Verdict
If you need to drive a large number of air-driven filters or air stones with a single device, the Resun AC-9908 is a cost-effective and powerful solution, provided you have a remote location to house it.
