Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender Bowden Filament J-head for PTFE Extruder pipe 1/2/4M Teflonto for 3 OD Printer V6 V5 4mm 2mm 1.75mm 3D Part tube ID Hotend Ender