QuietFlow Air Pump - 100 The Aqueon QuietFlow Air Pump is designed to provide reliable, near-silent performance for a wide range of freshwater and marine applications. Housed in a sleek, upright outer shell, the QuietFlow's Model 100 is recommended for aquariums under 100 gallons, drawing a mere 3.8 watts. Flexible rubber stabilizers keep the pump in place, while effectively absorbing vibrations to ensure quiet operation. With two vertical hose outlets and internal check valve, this easy-to-use air pump is capable of powering a variety of aeration accessories accepting standard airline tubing. 3.25" x 4.5" x 6"