Features: This DC 24V hot water circulation pump is mainly used for solar water heater. Made of high quality engineering plastic, this pump is sturdy and durable. The pump can hold hot water temperature up to 100 degrees Celsius. Both inlet and outlet threads are 1/2BSP standard, fitting for many connection. Convenient to install and easy to use, there is a arrow mark on top which shows flow direction. Specifications: Main Material: Engineering plastic Rated Voltage: 24V DC Power: 18W Max. Rated Current: 0.85A Inlet/Output Male Thread Size: 1/2BSP (20mm) Max. Flow: 11L/Min Max. Water Temperature: 100 Wire Length: About 80cm Noise: 40000hrs Weight: 259g(approx.) Package Includes: 1 x Water Pump Note: Please allow small size error due to manual measurement. Thanks for your understanding.