Features: Ensure a secure and airtight connection for your PTFE tubing with the Pneumatic Connector PU4,specifically for 3D printers. Featuring upgraded sealing process, this connector offers strong air tightness with minimal endgap, and its endcap can rotate 360degree for flexible installation. For 3D printing enthusiasts and users who require reliable components for their 3D printer setups. Perfectly for installation at the back of 3D printers, ensuring seamlessly integration into your existing setups. From durability plastic, this pneumatic fitting is essential for maintaining optimaled performances in your 3D printing projects. Specifications: Size about 3.1x1.1cm/1.22x0.43in Name：Teflonto Pipe feed Pipe Extension Joint Card Spring：Stainless Steel Shell: Strong Plastic Shell weight：about 3.8g For P1/X1/A1Min/AD5M/AD5M Series Package Includes: 1PC PTFE Tube Connector note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.