Nilfisk Extreme X300 series domestic vacuum cleaner activated carbon pre-filter. This goes in the dustbag chamber behind the dustbag pre-filter cage.
The prefilter that goes in this cage, is included in each packet of genuine dustbags. The pre-filter needs to be replaced each packet of dustbags.
This active carbon deodouriser is square, and black in colour, and feels like a rough cushion. It has a life of approximately TWO YEARS.
At the moment standard postage within Australia, is capped at a maximum of $20!