Photo 1 of 10PCS PC4-M10 Bowden Tube Coupler Male Straight PTFE Tube Push Pneumatic Connector Fitting for E3D-V6 Bowden Extruder Hotend Couplers for Ender 3 v2 Ender 3 Pro CR10 Mega Chiron filament connector

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Photo 1 of 10PCS PC4-M10 Bowden Tube Coupler Male Straight PTFE Tube Push Pneumatic Connector Fitting for E3D-V6 Bowden Extruder Hotend Couplers for Ender 3 v2 Ender 3 Pro CR10 Mega Chiron filament connectorPhoto 2 of 10PCS PC4-M10 Bowden Tube Coupler Male Straight PTFE Tube Push Pneumatic Connector Fitting for E3D-V6 Bowden Extruder Hotend Couplers for Ender 3 v2 Ender 3 Pro CR10 Mega Chiron filament connector