Pressure Pump - It will be needed if your water pressure is below 35 PSI, most city water will not need a pressure pump

Thunder 1000C Reverse Osmosis/Ultrafiltration

The Thunder 1000C is a 12 stage Reverse Osmosis filtration system. It is one of the most advanced and effective systems available. It will remove up to 99.9% of undesirable contaminants and filter particles as small as 1/1000 of a micron.