This kit includes a plug-and-play heating core and thermistor and is fully compatible with the Ender 3 V3 printer. Z-height, construction volume and firmware remain unchanged. By upgrading your Ender 3 V3 to a FlowTech ecosystem, 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. High flow rate: The cylindrical ceramic heater and the 28.6-mm melting zone ensure an excellent volume flow.