I Spring FP15 5 Micron 10"x2.5" Universal Sediment Filter Cartridges,

REDUCTION OF SEDIMENT – It is usually the first filter in a water filtration system. The main function is for reduction of sediment, such as sand, dirt, silt, rust and various fine particles that even can’t been seen by naked eyes. 100% MELT-BLOWN POLYPROPYLENE – Sediment filters are made of fine melted polypropylene, which is then blown and spun in a cylinder-like form. It is physically strong and resists to chemical and corrosion. ANSI/NSF STANDARD 42 CERTIFIED COMPONENT – Tested and certified by independent third-party. Genuine iSpring filter sold directly by manufacturer. Performance and quality guaranteed. WELL PACKED FOR FRESHNESS – Each cartridge is individually wrapped with manufacturing date Micron rating: 5 Micron Dimensions: 25cm x 6.4cm Capacity: 15, 0ls Replacement schedule: 1-4 times a year, depending on the water quality”