Nilfisk Coupe and Coupe Parquet and Coupe Neo vacuum cleaner pre-filter holder. It's just the plastic grid filter holder that hold the pre-filter behind the dustbag, in the dustbag compartment. It's shown pictured lower right. The black square pre-filter that goes in it, is supplied with the genuine dustbags.
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!