Upper bowden tube (Sigma) 8,60€ In stock Upper bowden tube (Sigma) quantity Add to cart Only compatible with BCN3D Sigma. The teflon tube (bowden) connects the extruder of the BCN3D Sigma with the hotend. It measures 865mm in length. Related products Extruder Kit (L & R) R16/R17 180,15€ Buy Extruder Board 19,95€ Buy X-Axis pulley (motor) | BCN3D 3,50€ Buy Pack Coupling collet (x6) 24,95€ Buy