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Reverse osmosis systems offer a more advanced treatment process than carbon filtration only or entry level pour-through pitchers. At the heart of the system is a reverse osmosis membrane that removes impurities as small as an atom.

Drinking water passes through a series of sediment and carbon RO filters, eliminating any unwanted tastes and odors and bringing fresh water. 

Reverse Osmosis System Diagram

3 Stage Reverse Osmosis System

TFC Membrane System

  1. Carbon prefilter: Stage 1 activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine. Carbon prefilter removes chlorine to protect TFC membrane.
  2. RO membrane: Stage 2 reverse osmosis TFC membrane filter squeezes out dissolved substances including radium, lead, arsenic, and many others. Select the newest technology "thin film composite membrane" or TFM.
  3. Postfilter: Stage 3 post filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear.

CTA Membrane System

  1. Sediment prefilter: Stage 1 sediment pre-filter screens out dirt, sand, rust and other microscopic particles 15 times smaller than a grain of sand.
  2. RO membrane: Stage 2 reverse osmosis CTA membrane filter squeezes out dissolved substances including radium, lead, arsenic, and many others. For better performance, select the TFC membrane with carbon prefiltration.
  3. Postfilter: Stage 3 post filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear.

Once a year replace the carbon or sediment filter. Every 2 to 3 years, replace the RO membrane.

 4 Stage Reverse Osmosis System

With or without a permeate pump

  1. Sediment prefilter: Stage 1 sediment pre-filter screens out dirt, sand, rust and other microscopic particles 15 times smaller than a grain of sand.
  2. Carbon prefilter: Stage 2 activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine. Carbon prefilter removes chlorine to protect the TFC Membrane.
  3. RO membrane: Stage 3 reverse osmosis membrane filter squeezes out dissolved substances, including radium, lead, arsenic, and many others.
  4. Polishing filter: Stage 4 polishing filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear.

Replace the polishing filter once a year.

5 Stage Reverse Osmosis System

With or without a booster pump

  1. Sediment prefilter: Stage 1 sediment pre-filter screens out dirt, sand, rust and other microscopic particles 15 times smaller than a grain of sand.
  2. Carbon prefilter: Stage 2 activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine.
  3. 2nd carbon prefilter: Stage 3 activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine.
  4. RO membrane: Stage 4 reverse osmosis membrane filter squeezes out dissolved substances, including radium, lead, arsenic, and many others.
  5. Polishing filter: Stage 5 polishing filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear.

Compact Reverse Osmosis Systems

  1. Sediment prefilter: Stage 1 inline sediment prefilter screens out dirt, sand, rust and other microscopic particles 15 times smaller than a grain of sand.
  2. Carbon prefilter: Stage 2 inline activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine.
  3. RO membrane: Stage 3 reverse osmosis TFC membrane filter squeezes out dissolved substances, including radium, lead, arsenic, and many others.
  4. Polishing filter: Stage 4 inline polishing filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear.

RC540T50 Countertop Reverse Osmosis System

  1. Sediment prefilter: Stage 1 inline sediment pre-filter screens out dirt, sand, rust and other microcopic particles 15 times smaller than a grain of sand.
  2. Carbon prefilter: Stage 2 inline activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine.
  3. RO membrane: Stage 3 reverse osmosis TFC membrane filter squeezes out dissolved substances, including radium, lead, arsenic, and many others.
  4. Polishing filter: Stage 4 inline polishing filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear.

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