10 MICRON RATING: With a nominal filtration rating of 10 micron, our quality NSF Carbon filter reduces fine sediment particles and chlorine taste & odor from tap water 10x2.5 NOMINAL: 10” slim filter made with CTO coconut shell carbon filter media NSF CERTIFIED: This filter cartridge is tested and certified by NSF International to NSF/ANSI Standard 42 for material requirements only QUALITY REPLACEMENT: 10” x 2.5” PAC (Powdered Activated Carbon) water filters, compatible with EPM-10 / 155634-43 CFB-10 / 255671-43 and CB-25-1010 SpiroPure SP-EPM-10 10x2.5 CTO Coconut Shell Carbon 10 Micron Replacement Water Filter Cartridge