Keep your FiltoClear 60000 or FiltoClear 90000 in good working order with this replacement foam set for the filter cartridge – red with a 30 ppi pore size for filtering out fine debris. It couldn't be easier to swap out your filter's old, used foams for new ones, thanks to its simple and straightforward design. Simply unplug the filter, remove the cover, and take out the screws and spacers to remove the old foams and replace them with a new set. It is recommended that all foam filters in your FiltoClear are replaced at the start of each season, as they will naturally wear down in the course of use.