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Micro Swiss FlowTech Hotend for Elegoo Neptune 4 / 4 Pro

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FlowTech™ Hotend for Elegoo Neptune 4 / 4 Pro

The FlowTech hotend is now available for Elegoo printers, starting with Neptune 4 and 4 Pro.

Installing this hotend on Elegoo Neptune 4 and 4 Pro printers is a very quick and easy process. The kit comes with a plug and play Heater Core, thermistor and a heatsink fully compatible with Neptune 4 and 4 Pro.
Stock z-height, build volume and firmware remains unchanged.


  • Leak-Proof Nozzle:
    Tired of messy nozzle leaks that ruin your prints and waste filament? FlowTech Hotend combines nozzle and thermal break into one permanently sealed assembly that ensures a leak-proof hotend.

  • Cold Nozzle Change:
    Swapping out nozzles used to be a time-consuming and potentially hazardous task. With a FlowTech Hotend, nozzle changes are effortless, and there's no need for hot tightening, and you can do it with just one hand.

  • High-Flow Characteristics:
    Ceramic cylindrical heater and 28.6mm melt zone provides excellent volumetric flow rate.

  • All-Metal Design:
    Built to last! FlowTech hotend features an all-metal design that can handle most modern 3D printing filaments. The entire hotend is machined and assembled in-house, with quality control performed at multiple stages during the manufacturing process. At the end, each hotend undergoes a full thermal cycling test before it is packaged.

  • 300°C Max Temperature:
    This hotend is rated at 300°C temperature with a properly tuned NTC thermistor for each specific printer. This particular edition is perfectly tuned for Elegoo Neptune 4 and 4 Pro so no firmware changes are needed.



  • Elegoo Neptune 4
  • Elegoo Neptune 4 Pro

Package Contents:

  • 1x FlowTech™ Heater Core
  • 1x Copper Thermal Adapter
  • 2x Titanium Mounting Screws
  • 1x FlowTech™ Brass Plated 0.4mm Nozzle
  • 1x Heatsink
  • 1x 30mm PTFE Liner
  • 1x Silicon Sock