Healthy fish love our Aqua Culture 5-15 Gallon Single Outlet Aquarium Air Pump. Air pumps oxygenate the water in your aquarium to help your fish breathe. This powerful aquarium air pump is designed for 5-to-15-gallon tanks and can accommodate up to three air-powered devices including bubble stones, action ornaments, and under-gravel filters. Our box includes one check valve, which can help prevent the siphoning of aquarium water into the air pump in the event of a power loss. The pump never needs lubricating, is rubber insulated for quiet performance, and pumps up to 1200cc per minute. Be sure to check out all the other Aqua Culture aquarium accessories to create a unique and playful look to your tank. Your fish will be happy and healthy when you use the Aqua Culture 5-15 Gallon Single Outlet Aquarium Air Pump.