A must-have spare for DIY FDM 3D printing projects or to replace the MK4 - MK3.9 - XL extruder throat: This is a cloned bi-metal insulation specifically for the Hotend assembly of Nextruder-equipped printers. This adapter makes your Nextruder compatible with any V6 nozzle. Not compatible with Prusa I3 MK3S, MK3, MK2.5S, MK2.5, MK2S, MMU2, SCW1, SL1, MINI, MK3S+, MINI+, SL1S, CW1S, MK2, MMU2, MMU1, MMU3, MK3.5. How to replace the adapter: The heating block and heating tip must be cleaned of filament residue so that the nozzle can be easily released. Do this with the printer powered on, and avoid touching the hot parts on the hot end and heat bed. Then screw the Nextruder V6 nozzle adapter onto the heater block from the side with the heater thermistor. Use an universal wrench to screw the other side into the V6 nozzle. Do not overtighten or damage the threads. Package Contents: Nextruder V6 nozzle adapter with 3 high flow E3DV6 nozzles. We now have other clone MK4 spare parts such as 241x253.8mm smooth PEI PEO PET PEY - textured print plate, heating block, heating element thermistor, 104nt heat bed thermistor kit, silicone socks. High Quality Bi-Metal Heatbreak: The Heatbreak is made from two components, copper and titanium TC4. Titanium TC4 reduces upward heat conduction at the heating position, and copper is used to dissipate heat and accelerate heat conduction. It has high temperature resistance up to 500C degrees, has different thermal conductivity and a smooth inner wall to reduce clogging of 3D printer materials. Wide compatibility with different wire materials, such as PLA, TPU, PETG, wood, ABS, etc. Colour:Photo Color Material:Copper Titanium Alloy Package Contents: 1x MK4 split hose 2x Brass nozzle 0.4mm 1x Hardened steel nozzle 0.4mm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.