... controller R.O system 50G Standard Five Stage reverse osmosis system RO SYSTEM WATER PURIFIER 50G Standard Five Stage reverse osmosis system RO ... or 3.2 steel 6.filters: PP,UDF.CTO,RO membrane,inline carbon7.daily output: 190L8.working pressure: 01 ... turbid matter3rd Block carbon: remove organic matter,chlorine, smell4th RO membrane: remove bacteria,heavy metal,chemical matter,dissolve matter,salt ...