Features 1、Ideal Replacement Part: This extruder hotend is suitable for ET4, for ET4 Pro, for ET4X 3D printers, is an ideal replacement part 2、Direct Drive: The 3D printer extruder heating end is directly driven, leaving little room for filament wiggle 3、100K Temperature Thermistor: The temperature thermistor is 100K ohm, the extruder head hot end is resistant to high temperature 4、With Pin: The replacement printer extruder heating end with pin is convenient to connect, easy to replace and install 5、Sturdy and Durable: The 3D printer extruder hotend is made of aluminum, stainless steel and brass, which is wear resistant and durable Specification Item Type: 3D Printer Extruder Hotend Material: Aluminum, Stainless Steel and Brass Applicable Models: For Anet ET4, for ET4X, for ET4 PRO, etc. Heating Tube Voltage and Power: 24V 40W Operating Temperature Range: -40℃ to +260℃ Heating Aluminum Block Size: Approx. 20x20x10mm/0.8x0.8x0.4in Nozzle Size: 0.4mm/0.016in Usage: To replace the original extruder hotend Package List 1 x 3D Printer Extruder Hotend