4-in-1 PTFE Adapter is used to switch filaments during multi-color or multi-material printing. One end connects to up to 4 different PTFE tubes (for 4 filaments), while the other end connects to the top of the extruder for feeding. Function (4-in-1 PTFE Coupler) - Compatible with for X1/P1/A1 Series + . This coupler is a critical component for Multi-Material Printing (MMU), linking the (Automatic Material Switching System) to the printer's hotend, enabling automatic switching between 4 different colors/materials. Key Roles: Merges 4 PTFE tubes (from ) into 1 output tube, allowing all materials to feed through a single path into the hotend.<br><br>Compatible Models: for X1/X1C (requires ) for P1P/P1S (requires ) for A1/A1 mini (requires Lite) Troubleshooting Common Issues: Filament switching fails? → Check if the coupler is loose or if the PTFE tube is worn. Clogs/jams? → proper alignment between the coupler, , and hotend, and avoid bends in the tube. Other Machines Not tested - Users must verify if their printer supports multi-color/material switching. Key Notes: For X1/P1/A1 + : Ensures smooth material itions. Maintenance Tip: Regularly inspect PTFE tubes for wear and alignment. Non- printers: Compatibility not guaranteed. Color:White Material:PLA<br><br>Package Contents: 1 * feeder fittings<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.