Solar Pond Oxygenator Sti40 - Operates in direct sunlight. Includes air pump for small to medium ponds. Includes 2-6.5’ airline tubings and two air stones. Oxygenates pond water in sunny weather when oxygen levels are depleted. Works at night also. 16’ cable to solar panel (included)apx 8 inches x 8 inches. Keep one on hand for emergency blackouts. Two year warranty.