1. The first stage is 5.0 micron PP filter . 2. The second stage is Milfunction+active carbon

ro water system 400G pumpless tankless stainless steel 304 with water pressure tank 4 stage purifier

1. The first stage is 5.0 micron PP filter .filtering s, rust, mud, sediment, etc. in water.2. The second stage is Milfunction+active carbon removing bad smell filtering organic sediment in water.3. The third stage is USA active carbon + KDF Cartridge completely removing bad smell in water.4. The fourth stage is 400G Reverse osmosis membrane filtering germ, virus, corpuscule, other solute chemical from tap water processing. 

household stainless steel RO water filter system