... ro water purification system : 1.PLC control 2.RO membrane:Hydranautics,made in USA 3.water pump:Nanfang,Hanzhou commercial ... is standard designning and installtion, which includes water pump, membrane,sediment filter,etc. The series has been exported to many counties, ... is optional.MAIN COMPONENTS OPTIONAL COMPONENTST.F.C.R.O. Membrane with 99% Recovery Salt Rejection DOW MembraneFRP pressure vessel ...