Hiperclean Dry Pads are known as maintenance pads, which are for cleaning already polished floors. This would be after the grinding, chemical treatment, polishing and finishing treatment stages associated with Husqvarna’s Hiperclean process.
180mm/7″ pads are for the PG450 and PG510.
230mm/9″ pads are for the PG530 and PG680
270mm/10″ pads are for the PG820.