Wondering if a Berkey water filter uses reverse osmosis? The answer is no—Berkey and reverse osmosis (RO) systems are distinct filtration methods with unique benefits. Berkey relies on gravity-fed carbon and ceramic filters to remove contaminants like bacteria, heavy metals, and chlorine, while RO uses a semi-permeable membrane to eliminate a broader range of impurities, including dissolved solids. In this guide, we’ll break down the key differences, compare their effectiveness, and help you decide which system is right for your home. At Pioneer Water Treatment, we’re here to ensure you have clean, safe water—contact us to learn more!