The 1st stage in the Santevia Gravity System is the Ceramic Pre-Filter, constructed from highly compressed and fired diatomaceous earth with a pore size of 0.3 of a micron. As the water passes through, the pre-filter removes rust, sediments, bacteria, germs and parasites. Allowing the water to pass through the next 7 stages of filtration without any harmful particles.
Filter life: 1 year
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