The Ecosoft replacement water filter for pitchers is designed to improve your water quality by reducing harmful substances. With its technology, it ensures the removal of chlorine, sediments, heavy metals, salts, as well as soil and mud that may be present in your water. It also helps reduce rust and eliminate unpleasant odors and tastes, providing clean and healthy drinking water. The package contains 4 pieces, which means you have enough filters to ensure your water quality for a long time.