Fluval's A Series Air Pumps are expertly crafted to enhance water circulation and oxygenation in your aquarium, benefiting fish, plants, corals, and beneficial bacteria. With a focus on powerful performance, these air pumps deliver exceptional air output while maintaining ultra-quiet operation and energy efficiency. Each model features adjustable flow control dials, allowing you to independently control each outlet for a customized aquatic environment. Key Features: Powerful Air Delivery: Optimized flow-to-pressure ratio ensures effective air output. Ultra-Quiet Operation: Engineered noise-dampening baffle chamber minimizes noise. Vibration Reduction: Rubber feet minimize vibration and noise. Adjustable Flow: Control dial allows for precise air volume adjustment. Fluval A Series Pumps are designed to significantly improve water circulation and essential oxygen levels for fish, plants, corals and beneficial bacteria. Hobbyists will appreciate the powerful yet quiet operation of these pumps.