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 Y-Axis pulley (motor) 3,00€ Buy Mainboard 489,48€ Buy Cooler Fan 14,95€ Buy Y-Axis pulley (short bar) 3,00€ Buy