10PCS PC4-M10 Fittings for 4mm PTFE Bowden Tube, Push-to-Connect, Leak-Resistant and Durable, Compatible with Most FDM 3D Printers, V6 Type Extruders & RepRap Printers

["Provides a secure and stable fit for 4mm OD PTFE Bowden tube, ensuring smooth and reliable filament feeding for consistent 3D printing performance.","Push-to-connect design allows quick installation and removal without tools, saving time during maintenance, replacement, or printer upgrades.","Built-in metal teeth and sealing components prevent slipping and air leaks while allowing 360° tube rotation for flexible and stable operation.","Includes 20PCS PC4-M10 male straight pneumatic fittings, compatible with V6 type hotend systems and most 1.75mm filament Bowden 3D printers.","Made of high-quality materials for durability and long service life, effectively reducing clogging and improving overall printing stability."]