Nilfisk Extreme X300 series domestic vacuum cleaner pre-filter cage. This goes in the dustbag chamber behind the dustbag. Formerly Pn. 147-0158-500
A seperate part, the active carbon deodouriser Pn. 147-0159-500 is located behind this grill. It's square, and black in colour, and feels like a rough cushion.
As it's light, maximise the saving on postage and buy some of the related parts below, such as dustbags and the filters or a new floor tool.
At the moment standard postage within Australia, is capped at a maximum of $20!