Free Shipping Anonymous Delivery 2023 Model Genuine Product eSpring Water Purifier II (Built-in Type) Replacement Cartridge Integrated Filter and UV Lamp Regular cartridge replacement is necessary to ensure proper water purification performance. The eSpring Water Purifier II uses an integrated filter and UV lamp cartridge. Replace with a new cartridge after one year or after using 5,000L of purified water. Convenient Integrated Cartridge High water purification technology using a "compressed activated carbon filter + UV lamp" is condensed into an integrated cartridge.