Extruder Stainless Steel M6 Throat with Teflon Tube - 6X30mm 1.75mm
The following is a stainless steel throat with PTFE tubing. It has two different internal diameters. You must connect the M6 screw thread to the heat block and nozzle. As for the M6 smooth area, it must be connected to a Heat sink in which a PTFE tube with the filament is inserted. This product is only compatible with 1.75mm filaments.