Been using these particulate cartridges for over 25 years.<br /><br />If you have well water and are finding fine particulates in your water, these paper cartridges will take care of your problem. (Note, you will have to buy the cartridge holder.)<br /><br />If your well water smells, you will also need a Pentex granulated carbon filter (odor & taste). Be sure to install the paper ( particulate) filter upstream of it. Else, it may get quickly clogged.
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