Use the American Angler Aerator to keep your bait alive while you fish. This efficient battery-operated aerator clips onto your minnow bucket and will keep your minnows alive up for four times longer! Features a heavy duty water- and rust-resistant enclosure that makes this aerator perfect for freshwater or saltwater use. Aerator includes a filter, stone, and 24" air supply hose. The air stone gives a 25% increase in oxygen after 15 minutes of run time. With a single Alkaline D Cell Battery (not included), you'll get an average run time of 30 hours. With a extra space for a spare battery, you can double your running time.