... -1000×*(* stand for 1,3,5,10,20,30 separately)2.4 .XU-A Return Filter Series Cartridge Filter ModelTXX-25×* TXX ... Suction Filter SeriesCartridge Filter modelTFBX-45×* TFBX-70×* (* stands for 10,20,30,80 separately) 2.12. XNLTank Mounted Return Filter Cartridge Filter ModelNLX ... (* stands for 1,3,5,10,20,30 separately)2.17. SRFA Duplex Tank Mounted Mini-Type Return Filter Cartridge FilterModelSFAX-25 ...