ELF-1M-P-KDF / EV9270-72 Comparable Water Filter Replacement Cartridge by Tier1The 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