Adapters to easily connect your Festool vacuum cleaner hose with a diameter of 21.5 mm and a length of 5 m to either a Bosch or Makita sander. These adapters have an internal thread that can be screwed directly into the Festool hose. The appropriate adapter can then be screwed onto the hose and connected to the dust port on either the Makita or Bosch sander. This allows your Festool vacuum cleaner hose to maintain a clean workspace while using your favourite Bosch or Makita sander.