This is a compact size submersible water pump(none self-prime). It can be used inline or submersed for water pumping. It's built by a brushless motor providing smooth and quiet operation than a non-brushless water pump.Features:Brushless， permanent magnetic rotor， maintenance-free.Stator and circuit board sealed by epoxy resin. Amphibious design. Enclosed with static sealing， not dynamic， which can avoid leaking problems.Small size， high efficiency， low consumption， low noise (less than 35db).Wide temperature resistance range from 0°C to 100°C.Used in Aquarium， car cooling， humidifier， air conditioner， other cooling and circulation systems.Specifications:Color: BlackPump material: ABSTemperature resistance range: 0 ~ 100°CCondition of use: ContinuouslyFluids: Water， oil， gasoline， acid and alkali solution， etc.Power consumption: 5WRated voltage: DC 12V Max. flow rate: 260L/HMax. lift: 350cm / 11.5ftNoise: Less than 35dBOuter diameter of inlet / outlet: 9mm / 0.35inInner diameter of inlet / outlet: 6mm / 0.24inWaterproof class: IP68Product size: 56 * 52 * 47mm / 2.2 * 2 * 1.8in Product weight: 70g / 2.47ozPackage size: 6.2 * 6.2 * 4cm / 2.44 * 2.44 * 1.57inPackage weight: 79g / 2.8ozPackage List:1 * Brushless DC Pump1 * Adapter Plate