Made in West Germany, this unit has removable flap underneath to remove obstructions and help keep the turbine clean. This was supplied with the Nilfisk GM 90 and GM 200 before Nilfisk changed it to the lighter duty model. Part number, 21982000, which then changed to PN 22360000 but this then refers us to PN 82203501. Now the new Action A300 uses PN 82214500 a Chinese copy, but it isn't as good quality.