Aries 20″ x 4-1/2″ 100% Premium Cation Resin/Softening Cartridge

AF Series cartridges are double-open end cartridges that fit standard residential and industrial housings. Cartridges are available in 2-1/2″ and 4-1/2″ diameters and 5″, 10″ and 20″ lengths. Using premium Resintech media and offering oversized cartridge cavities, AF Series cartridges provide the best in water purification and filtration.