Air Pump One Outlet up to 75 Gallon Aquarium Fish Tank 40gph Features: For aquariums up to 75 Gallons  1 outlet  Super quiet design, no annoying noise Specifications:  Max Flow: 40 GPH  Pressure: 0.020 MPA or 2.90 PSI  Dimension: 3.5 x 1.875 x 1.875 inches (L x W x H)  110V-120V/60Hz, 3W Air Pump One Outlet Up to 75 Gallon Aquarium Fish Tank 40GPH Includes: (1) Air Pump