We can supply 4 or 5 stage RO system both for household and commercial use, as well as tank, faucet, LCD display, manual flusher and other related parts. All the parts are imported or provided by domestic famous suppliers, The mebrane is from USA or Korea. The system works stably and has a long service life. Stage one: PP sediment, micro rate can be 1, 5, 10um. Stage two:activated carbon block(CTO), good ability in removing Chlorine, odor and color. Stage three:Granular Activated Carbon filter cartridge, is good at removing odor, color, objectionable tastes, Chlorine, spore, lead and microorgaisms. Stage four: Reverse Osmosis membrane form USA or Korea, the size of pore can be from 0.0001 to 0.001um. Stage 5:In-line filter filled with Coconut shell Actibated Carbon