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 Motor R 199,95€ Buy SD Card Reader 19,95€ Buy Y-Axis pulley (motor) 3,00€ Buy Extruder Kit (L & R) R16/R17 180,15€ Buy