Nilfisk GU355 Dual commercial upright vacuum cleaner and the Nilfisk GU455 Dual upright commercial vacuum cleaner TYPE H13 Filter.
This filter fits both the Nilfisk CVAC GU355 and GU455 DUAL and the Advance Spectrum but not the early Nilfisk GU350 upright vacuum cleaner or the Nilfisk GU450 upright commercial vacuum cleaner or the later GU350A upright commercial vacuum cleaner and GU450A
They also fit the Nilfisk Power P40 and P20 Allergyvac
Should probably be replaced each 12 months unless it's used where fine dusts, or carpet powder are used, when it should be replaced more frequently
At the moment standard postage within Australia, is capped at a maximum of $20! Maximise the saving on postage and buy some of the related parts below, such as a new hose, and a new filter or a new floor tool or round brush.