Perfect New Fish Tank Aquarium Dual Outlets Adjustable Low to High Air Pump Up to 120 Gallons 49 GPH Perfect New Fish Tank Aquarium Dual Outlets Adjustable Low to High Air Pump Up to 120 Gallons 49 GPH Super silent with multi-level muffler Special artificial rubber to keep a steady air flow output and pressure that can be adjusted freely Low power consumption / Quiet design, no annoying noise Good for Aquariums up to 120 Gallons / Dimension: 5.25 x 2.75 x 2.25 inches