This H2O extruder kit from BIQU can cool at a high ambient temperature. The kit is suitable for high temperatures of up to 500°C. Thanks to the efficient cooling, the extruder kit can also be used in a closed 3D printer. The copper nickel-plated heating block has high hardness, wear resistance and corrosion resistance. This BIQU H2O extruder kit is suitable for the Ender 3, CR10, B1 and similar 3D printers.