<b>Cutting-edge Ultra Quiet MC-3000 Commercial Air Pump </b><br><br> The revolutionary design makes the pump compact, high efficiency, powerful and very reliable. It features ultra quiet operation, low energy consumption, no lubrication requirements and easy maintenance. <br> It oxygenates your aquarium / pond with adjustable High / Low mode and 4 outlet air lever control distributor.<br><br> Measures 5 x 5 x 3.3 inches and weighs 3.2 pounds. Suitable for use in any Freshwater and Marine Water. Ideal for Aquarium, fish tanks, koi pond, winterization, hatcheries, waste water treatment and protein skimmers. <br><br> <b>SPECIFICATIONS: </b><br><br> Recommended Tank Size: 300 to 500 gallons<br> Voltage: 110 - 120 V; 50 / 60 Hz <br> Output: 254 gallon per hour <br> Power: 8 W<br> Pressure: 0.022 MPa.<br> Noise: < 40 dB<br> Dimensions: 125 x 120 x 85 mm