Check the listing for details. 300 Gallon Adjustable Silent Air Pump Large Aquarium Fish Tank 4 outlet. Condition: New. Listed at 26.69 USD. Description : One of the most reliable and budget-friendly air pumps on the market. Powerful, high output pumps fulfill most aquarium air requirements and are built to ensure years of dependable, trouble-free use. Rubber stabilizer feet and technologically advanced design offer smooth, quiet operation. Convenient air pumps can be wall-mounted to save space. Features: •4 outlets; fit for 3/16" tubing •Aquarium Size: Up to 300 Gallons •Flow adjustable design, you can adjust the air flow any time •Super quiet design, no annoying noise •Product by SUNSUN/Perfect, same rating as Jebo Specifications: •Max Flow: 285 GPH or 4.5L x 4/min •Pressure: 0.013 MPA or 2 PSI •Dimension: 7.5 x 5.5 x 3.5 inches (L x W x H) •110V-120V / 60Hz, 8.5W Includes: (1) Air Pump