Description: Full metal hotend with high efficient liquid cooling system of the primary design，it will make your 3D printer more fluent and suitable for many more advance engineering plastics. Compact volume,the volume of cooling block is only 30X30X14.5mm,and no fan to occupy the space. Abandon the general PC-used liquid cooling tubes,the thin high temperature resistant silicon rubber tube is selected to ease the arrangement of wire. It can work in environments,such as working at temperatures up to 100 degrees or even higher in a chamber. Compared with the air cooling hotend,the highly efficient liquid cooling can be effective for any currently available 3D printing materials. Compatible with all V6 heat blocks and nozzles,so that you can do the upgrade and replacement by yourself for the desired combinations,such as replacing the latest copper alloy heating blocks and nickel plated copper alloy nozzles and so on. The default configuration is hardened steel nozzles and sensor cartridges heating blocks that can be easily upgraded to PT100 sensor. It can work very easily over 400 degrees Celsius.The PT100 Upgrade kit is Plug and play,the default liquid pump and radiator has been installed with high efficiency,it can be used directly as long as the filling of cooling liquid. Specification: Type: The Radiator For fdm 3d printer: water cooling 3d printer cooling hotend: for um printer Size:82x35x35mm Package Includes: 1 x Aluminium liquld cooling block set (as the picture)