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8-level RO water purifier special replacement filter cartridge set - bringing sweet and good water to families Each level of filter element has its own strengths: Level 1: PP Cotton Filter Cartridge Block large particle impurities such as rust, sediment, and suspended solids to protect the subsequent filter element. The preferred defense line for areas with turbid water quality. Level 2: UDF granular activated carbon filter cartridge Absorb residual chlorine, odors, and some organic matter in water. Make water fresher and make soup and tea taste better. Level 3: CTO Compressed Activated Carbon Filter Cartridge Further adsorb residual impurities and unusual odors, while intercepting finer particles. Provide cleaner inlet water for RO membrane. Level 4: Mineral filter cartridge Add beneficial mineral elements to purified water for the human body. Make the taste of water more natural, as sweet as mountain spring water. Level 5: Resin filter cartridge Specially targeting areas with hard water quality. Effectively reduce the calcium and magnesium ions in water and minimize the formation of scale. Used to boil water, the bottom of the pot is no longer white; Used to make coffee, the taste is smoother. Level 6: T33 rear activated carbon filter cartridge This is the final step before leaving the water to improve the taste. Make every glass of water refreshing and sweet, and make your family love drinking water even more. Level 7: PP Cotton Filter Cartridge As the last line of protection before the RO membrane, it intercepts small particles that may leak again, ensuring that the RO membrane can work safely and extend its service life. Level 8: 100GPD RO membrane filter cartridge The filtration accuracy is 0.0001, and the TDS can reach below 10, meeting the demand for direct drinking. Core filtering power. The pore size is small, which can effectively filter out harmful substances such as heavy metals, bacteria, viruses, pesticide residues, etc. The water that comes out can b