The ViaAqua MillionAir Aquarium Air Pump combines superior design elements and state of the art technology to create a strong, reliable, safe and quiet air pump. Low energy consumption, high air output, quiet operation, and variable control modes make the MillionAir pump an excellent model for a variety of applications. Energy efficient with high air output Quiet operation Simple installation and easy maintenance Specifications: Cord length: 6' Power supply: 120 Volt AC, 60 Hertz Tubing: Standard air line - 3/16" Models:MA-80:1 Air Outlet10 GallonsMA-200:1 Air Outlet30 GallonsMA-400:2 Air Outlets50 GallonsMA-600:2 Air Outlets100 Gallons