The Explorer Activated Carbon Refill Pack from Katadyn contains two high-quality activated carbon filters specifically designed for the Katadyn Explorer and Explorer Pro water filters. These filter cartridges are designed to improve water quality by effectively reducing unwanted tastes and odors. Made from premium activated carbon, they provide a reliable solution for water purification, especially during outdoor activities or travel. The filters are available in a convenient 2-pack, allowing for easy handling and quick replacement. Using these refill packs ensures that the water filter always operates at its best, providing clean, fresh drinking water. The filter cartridges come in the classic color black and are sourced from Japan, a country known for its high standards in product quality. With these activated carbon filters, users can ensure they have access to pure water anytime, anywhere.