Blagdon Pond Oxygenator Kit 2 OutletIncreases oxygen for a healthy pond. ~ Outdoor weatherproof water garden air pump ~ Complete kit ~ Increases oxygen in warm weather ~ Helps prevent freezing during the winter, reducing the potential build up of toxic gas. ~ Treatments and medications can reduce oxygen levels in your pond. Support your fish with additional aeration and circulation when they need it most. Fish and pond life require oxygen rich water to remain healthy. Beneficial