Vktech DC 12V Brushless Water Pump Waterproof IP68 ZC-T40 Ceramic Shaft Super long working life(more than 20000 hours); Adopt high performance ceramic shaft Amphibious design; Submersible installation and entirely waterproof Used in Aquarium, car cooling, humidifier, air conditioner, other cooling and circulation systems. low consumption; low noise(less than35db), Can used in computer cooling system, Garden fountain