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 R.