Swift Green filters aim to provide you with the cleanest and healthiest water filtration for your home and biness by making sure the materials we e in our products are eco-friendly while being cost effective. We are the green alternative to the conventional filter. Our activated carbon is produced ing a new technology that carbonizes dried coconut shells in an enclosed self-staining system. This process captures and converts the emissions into eful thermal energy. We offer a variety of filters that are compatible with all leading brand refrigerators. Coconuts are a renewable and stainable source of charcoal. Grown in over 80 countries coconuts have a total production of 61 million tons per year. All those hks are being tossed or burned as waste! We take those hks and e them to create the charcoal for our carbon filters. Coconut carbon is superior to other sources of activated carbon. It has 50 percent more micro-pores for capturing contaminants.