Fluval A101 Air Pump The Fluval A101 Air Pump is a compact high-performance aquarium air pump designed to improve circulation and oxygen levels in freshwater, marine, reef, and planted aquariums up to 50 US gallons / 190 L. Fluval A101 Air Pump for Small Aquariums Built for quiet everyday aeration, the A101 provides a strong output-to-pressure ratio while keeping power consumption low. It is well suited for running a single air stone or compatible air-driven aquarium accessory where dependable oxygenation is needed. Quiet Adjustable Aeration for Everyday Use Improves water movement and essential oxygen levels for fish, plants, corals, and beneficial bacteria. Adjustable flow control lets you fine-tune air delivery for the connected device. Noise dampening baffle chamber and double wall construction help reduce operating sound. Oversized rubber feet help stabilize the pump and limit vibration. Flexible positioning allows the pump to sit flat or mount vertically to help reduce clutter around the aquarium stand. A101 Air Pump Specifications Item number: A851 UPC: 015561108515 Aquarium capacity: up to 50 US gal / 190 L Wattage: 2W at 120 V / 60 Hz Hose diameter: 3/16 in / 4.78 mm Total output: 23-29 US GPH / 90-110 LPH Outlet: single Noise rating: