Roller brush of 648 mm for upper position. The roller is equipped with black 29 mm polyamide spiral bristles, which transport coarse dirt particles towards the suction channel more quickly than straight bristles during cleaning. This not only achieves excellent fibre-deep cleaning on carpets, but also reduces sound emissions. Suitable for use with all CV 66/2 upright brush-type vacuum cleaners from Kärcher. The bristle diameter is 0.30 mm.