Upgrade Plated Wear Resistant M6 Thread Brass Nozzle Pack 0.4Mm For 1.75Mm V6 Hotend Titan Aero Extruder Prusa I3 Mk3 Mk3S Anycubic I3 Mega S/Zero 2.0 / Vyper 3D Printer (4X0.4Mm) Item Not Available 3736720