This item is a hotend spare part for the MK8 extruder, if your extruder suffers a clog or oozing that cannot be fixed,

 instead of replacing a new extruder, you can repair it with this kit.

this SKU is the left side 0.4mm  hot end kit for PRO C printer  . 

if you also need right side , pls order 2pcs this link hotend , but write a comment for your order , need 1 left and 1 right side hot end for PRO C   . 

the hot end kit for Mecreator 2  printer is  800-001-0482 , you can order this link hotend , but write a comment for your order , need hot end for Mecreator 2  printer instead.