Replacement Filter Media for Pfannenberg Filterfans?« PF/PFA 5x000 (4th Gen) - Fluted Polyester , 5 filter per packOriginal Equipment Parts for PF 65000, PF 66000, PF 67000, PFA 60000, PF 65000 R, PF 66000 R, PF 67000 R, PFA 60000 R, PF 65000 SL, PF...