... quality in supplywater. The diagram on the left shows the general schematic of a typical 5 stage RO water ... 1 angstrom = 1/10,000 micron or1/10,000,000,000 ... high pressure drop of the Reverse Osmosis process in order to filter the water particles, theclean water ... water source), etc. and thus it is best to talk to yourPerfect Life Water specialty agent for recommendation first. 100GPD RO water purifier ...