Designed for optimal performance, our pneumatic quick connectors are essential for 3D printing enthusiast. The push-to-connect fittings allow for quick and easy assembly, saving you time and effort. Made from copper and plastic, these connectors withstand high temperatures and resist aging, ensuring a reliable and connection for your PTFE tubes in 3D printing application. Features -Color:Black -Material:Copper and plastic -Size:1.90X1.00X1.00cm/0.75X0.39X0.39in -Note: suitable for 4 mm outer diameter tubes -Thread diameter: 9.7 mm -Nut diameter: 10.1 mm -Thread length: 6.2 mm -Feed hole diameter: 6.8 mm -Applicable PTFE tube: 2x4 mm -High durability: constructed from plastic and copper, these fittings are resistant to high temperatures and aging, ensuring longterm reliability -Firm connection: the male straight design ensures a firm and stable connection, reducing the risk of disconnections and ensuring smooth operation - : each fitting is precisely machined to exact specifications, providing reliable and for your 3d printing projects -Effortless installation: designed for easy installation, these fittings can be quickly and easily attached, making them ideal for users of all skill levels -Secure Fit: The precise design of this push in connector ensures a secure and tight connection, preventing leaks <div </div Package list: 10 x pneumatic connectors