BRITA Purity Quell ST water Filter C500Decarbonizes Water: The system is designed to remove carbonates from water using BRITA System Filtration Technology. Reduces Taste and Aroma Impairing Elements: The technology not only decarbonizes the water but also reduces elements that can negatively affect the taste and aroma of beverages. Bypass Water Treatment: The system can also handle bypass water, ensuring that even water not directly used in the process is treated to improve its quality.