Nilfisk IVB5 M wet and dry commercial vacuum cleaner dustbags packet of 5. They also fit the Nilfisk-ALTO XTREME 560-21 XC vacuum cleaner the Nilfisk Grey-Line IVB5 M and some Festo Hilti Makita and Stihl branded vacuum cleaners
These dustbags fit longitudinally down the container, not to one sire, and around the filter. I prefer these dustbags, as debris doesn't get jammed in the inlet as much.
However, Pn. 302000527 which fits around the filter, can also be used.
At the moment standard postage within Australia, is capped at a maximum of $20! Maximise the saving on postage and buy several Puregiene toilet rolls a box of Tissues and some soap or maybe some packets of dustbags, or a hose or a new floor tool, or some other accessories!