Newly

GB2 Metal Hot End Upgrade Kit

Product description

 This all-metal hot end upgrade will replace the J-head hot end in your Greg Wade style extruder. It comes with a new heater cartridge and thermocouple. This all-metal hot end will provide thousands of hours of printing without the need for replacement, and it also enables you to print at temperatures up to 300C. 
Instruction Manual for upgrade: Link