air cooler pump 1.DB series with CE and Rohs certificate 2.Use in pond,aquarium tank,pool,fountain,submersible water POWER CONSUMPTION(W ... operate following this warranty.1,Please keep the water is clean2,Cleaning the water pump every week. Do not mover the shaft.3 ... in the water 3, Don't catch the pump by cable4, Pump work water temperature below 45°C5, Keep the water is clean air cooler pump DB ...