Smart Solar 21801R01 Solar Oxygenator Air Pump and Diffuser, Includes Two 6.5-Foot Tubes, Two Air Stone Diffusers And A Separate Solar Panel Along With a 10-Foot Cable From Oxygenator To Solar Panel Air pump suitable to small and medium sized ponds up to 800 gallons Oxygenates pond water in sunny weather when oxygen levels are depleted Acts as a water diffuser creating ripples on the surface which prevents mosquitos from laying their eggs and attracts more birds Includes two 6-1/2 feet tubes, two air stone diffusers and a separate solar panel along with a 10 ft cable from oxygenator to solar panel Air flow rate 48 gallons per hour