This is a barrel for both single and dual MK8 extruder with a PTFE tube inside (Note:3mm model has no PTFE tube inside).
Please note that the 1.75mm MK8 extruder is not compatible with the 3mm one, and you can not convert your 1.75mm extruder into a 3mm one by just changing the barrel. please confirm your expected diameter before placing the order.
Material: Stainless Steel
Inner diameter: 2mm for 1.75mm filament, 3mm for 3mm filament
1 x MK8 barrel （PTFE tube only for 1.75mm)