1. PP cotton filter: Pretreatment of incoming raw water, effectively filters sediment, suspended solids, colloids, impurities, etc. in the water. Features a large filtration area and dirtholding capacity, ensuring filtration performance and long service life. 2. Compressed carbon filter: Deeply adsorbs pollutants in water such as odors, residual chlorine, and organic matter. The longlasting compressed activated carbon and dirtabsorbing mesh structure provide dual filtration performance and extended filter life. 3. Ultra filtration membrane filter: The hollow fiber ultrafiltration membrane core has micropores smaller than 0.01 microns, effectively retaining suspended solids, colloids, particles, and other impurities larger than 0.01 microns in water, serving as the core of ultrafiltration. 4. Silvercharged activated carbon: Further deeply removes odors and residual chlorine, effectively preventing secondary pollution of purified water, making drinking water more hygienic and safer.