Super long working life,If you use it 24 hours a day, it can last for 4 yearslow consumption & low noise, Amphibious design,Easy installation, waterproofSubmersible use(only for Cold water)Max operating temperature up to 100°C with External circulating water flowThe pump is good for the family home thermal solar systems or any circulationpump application where conventional power is not availableCan't be immersed in 100°C/212°F hot waterInlet/Outlet: 1/2 male thead.Fit both 1/2 NPT and BSP female theadSuitable for circulation, no suitable for pressure boostWaterproof and SubmersibleBrushless motor, Silience, Long lifespanCeramic pump coreSpecifications:DC 12V submersible water pumpVoltage:12VPower: 8.4WMax Flow Rate: 8L/Min(2.1GPM)Max Water Head: 3 m(9.84feet)Low noise: 30db at 1 metreMax circulating water temperature: 100°C/212°FOverall Length; 92mm/3.62Outlet Diameter: 20.4mm/0.80