... stages RO water purifier, RO water filters, for tap water. Counter top Reverse Osmosis drinking water purifier: Model: RO-50CWith automatic ... with slim housingWith only five micron rating. It is effective in removing dirt, rust and sand particles.2) stage: 10" ... remove the following hard water contaminants that may be present in your water: lead, cooper, barium, chromium, mercury, sodium, cadmium, ...