Nilfisk CA340 portable electric floor scrubber and the Advance Micromatic electric floor scrubber Aglite Grit 500 GREY scrubbing brush for sealed concrete floors, and urethane finished floors, similar to the photo.
The default Nylon brush is BLUE for general scrubbing of tiled floors, terrazzo floors and vinyl floor.
At the moment, standard postage within Australia is capped at a maximum of $20! Maximise the saving on postage and buy some of the other related parts below, such as some replacement squeegee lips, the filters, or the dirty water pick up hose. Or 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!