Installing this hotend on the Elegoo Neptune 4 Plus and Neptune 4 Max printers is quick and easy. The kit includes a plug-and-play heating core, thermistor and heat sink that is fully compatible with the Neptune 4 Plus and 4 Max. Standard Z height, build volume and firmware remain unchanged. By upgrading your Elegoo Neptune 4 Plus and 4 Max to a FlowTech eco-system, you can take advantage of the full range of FlowTech leakproof nozzles, including solid diamond tip DiamondBack nozzles – NO diamond coating. Manufactured in the USA by Microswiss Leakproof nozzle: Are you tired of leaking nozzles that ruin your printing and waste filament? The FlowTech Hotend combines the nozzle and the thermoblock in a permanently sealed assembly to ensure a leakproof hotend. Cold nozzle changes: Changing nozzles used to be time-consuming and potentially dangerous. With a FlowTech Hotend, nozzle changes are effortless, without hot-tightening and can be done with just one hand.