CNZ Aquarium Submerisble Hydroponics Pump Suitable for both fresh and saltwater tanks Powerful Compact Design; Dimension: 2.0" x 1.75" x 1.25" Quiet Operation, adjustable flow 110V-120V 60Hz; H-max: 2.0ft; 2-watt; Outlet fitting: 1/2" perfect for nano to medium sized aquariums, small ponds, water gardens, and desktop water fountains