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Introducing the ultimate upgrade for your Ender-3 Neo series extruder - the 3D Printer Hot End Kit. Made with high quality metal materials, this kit is built to last and is compatible with 1.75mm filaments. With pre-opened holes and an easy installation process, this kit is perfect for those looking to enhance their printing experience. The external thread connection and solid structure ensure stability and precision. This kit includes a nozzle, thermistor sensor, heating tube, silicone sleeve, heating block, cooling block, pipe, and teflontube. Upgrade your printer today with the 3D Printer Hot End Kit.