The ELF-1M-P-KDF and EV9270-72 Comparable Food Service Replacement Filter by Tier1 reduces chlorine, cysts, cryptosporidium, and giardia. This filter fits into the Everpure H-300 system as a replacement cartridge for the Omnipure ELF-1M-P-KDF and Everpure EV9270-72. It fits single head systems, QL2, QL3, and QL7I. Installation and maintenance are simple and easily take care of your water quality. Change the filter every 6 months or 15000 gallons (whichever comes first).