The GS-10CAL/RO Inline Filter Cartridge is a 10" combination filter with Coconut Shell Granular Activated Carbon (GAC) and calcite media. It is best used in various applications to correct low pH levels, polish water, brew better tasting coffee, tea, or other beverages. As a post filter in many reverse osmosis systems it reduces sediment, bad taste, odor and chlorine. The Pentek GS-10CAL/RO filter increases the pH level of water. Calcite is a natural mineral which dissolves in acidic water to raise its pH to neutral.
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