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This Stage 2 pre-filter is a single ply filter used alongside the Ring Filter. It filters up to size 5 microns, including dust, mold, and other particulate controls. It is important to replace these filters when dirty.
Available in store
CloseThis Stage 2 pre-filter is a single ply filter used alongside the Ring Filter. It filters up to size 5 microns, including dust, mold, and other particulate controls. It is important to replace these filters when dirty, as they are more effective when clean and therefore the primary filter stays cleaner for longer.