Procaps adapter to use Karcher/Windsor Pivot Brushes. Parts allow the use of stiffer brushes in you ProCaps/Icapsole crb machine. you need a 12mm socket head bolt and the bristle length will need to be cut shorter. You will also need to cut two notches in the drive end of the brush that align with the slots in the drive adapter to meet up with the drive mechanism on the machine. There is a piece for each side of the brush. if you need any additional instruction please message me. I have been using this for about 5 months now without a single problem.
The author hasn't provided the model origin yet.