
Components | Description |
Sediment Prefilter | Stage 1 sediment pre-filter screens out dirt, sand, rust and other microcopic particles 15 times smaller than a grain of sand |
Carbon Prefilter | Stage 2 activated carbon prefilter reduces elements that cause water to taste and smell unpleasant, including the taste and odor of chlorine |
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 |
RO | Stage 4 reverse osmosis membrane filter squeezes out dissolved substances, including radium, lead, arsenic, and many others |
Polishing | Stage 5 polishing filter is a second activated carbon filter that polishes the water to make sure that it is crystal clear |
| Once a year replace the Sediment Prefilter, Carbon Prefilters, and Polishing Filter | |
| Every 2 to 3 years, also replace the RO Membrane | |
Purwater Deluxe Reverse Osmosis System Owners Manual
Consumer Alert: The PW-RO4L is equipped with an encapsulated membrane, but can be retrofitted with a standard membrane housing part # EH2501KHCW, 1/4" QC, and the TFM-50 RO Membrane, part# 1204694. With this retrofit, you will be saving the environment by just replacing the membrane and not discarding so much plastic.