The 2 replacement filter cartridges are compatibility with Frizzlifes MP99, MK99, MS99, and MV99 water filtrations systems, offering seamless integration for your homes water purification needs Includes two replacement cartridges, providing 6 12 months of whole houses water filtrations ( recommended replacement every 6 months) for long lasting Designed for easy replacement—simply twist open the housing, remove the old cartridge, and insert the new without special tool or plumbing skills Features 5 microns sediment filtrations to remove sand, dirt, and rusts, 0.5 microns activated carbons to chlorine, odors, and organic contaminants for cleaner, better tasting water Made with high grade natural coconuts shell activated carbons, ensuring safe and efficient filtrations while maintaining strict controls standards